Shared Flashcard Set

Details

Forage Management & Utilization Test 2
Forage Management & Utilization Test 2
747
Agriculture
Undergraduate 4
02/01/2017

Additional Agriculture Flashcards

 


 

Cards

Term
2 genetic categories of bahiagrass
Definition
-Sexual diploids
-Apomictic tetraploids
Term
A little more energy and lots more protein in pasture because...
Definition
when the stuff is stored as hay, the protein breaks down and denatures
Term
ADF translates to this regarding after the animal eats it
Definition
lower digestibility
Term
Abomasum called glandular stomach because...
Definition
it’s similar to our stomach
Term
Alfalfa grown in California is grown under ______
Definition
irrigation
Term
All improved cultivars of orchardgrass are this genetic type (like alfalfa)
Definition
tetraploid
Term
Annual (Italian) Ryegrass is adapted to most of the US except
Definition
mountains
Term
Apomictic
Definition
Apomictic means they produce seed w/o fertilization
Term
Apply [how much N/A] 30 days after seeding bahiagrass
Definition
30 lbs N/A
Term
Apply this prior to seeding bahiagrass
Definition
P and K
Term
Assign forage to animals based on...
Definition
objective of production and such
Term
BCS 1 is...
Definition
severely emaciated
Term
BCS 9 is...
Definition
severely obese
Term
Bacteria do this to break down the cell wall of plant material
Definition
secrete enzymes, which help break down the cell wall
Term
Bacteria secrete enzymes that help...
Definition
break down cell walls and release cell contents
Term
Bahiagrass Establishment
Definition
-Apply P, K prior to seeding
-Fine firm seed bed necessary
-Small seed
-Plant 35 lbs seed/A (0.5” deep)
-Disk! and roll field to get firm contact
-Apply 30 lbs N/A after 30 days
-Second application of N after 60 days
-Mow to 2-3” high for weed control
Term
Basic Required Nutrients for livestock
Definition
-Water
-Protein
-Minerals
-Vitamins
-Fats
-Energy
Term
Bermuda grass does best on ______ soils. Bahia on ______ soils.
Definition
good
sandy
Term
Bile comes from...
Definition
gastric HCl in duodenum
Term
Body condition score is the best measure of ______ and a good indicator of ______.
Definition
past nutritional status
future reproductive performance
Term
Body condition scoring
Definition
an estimation of the amount of body fat a cow has
Term
Chief pepsin cells produce...
Definition
pepsin
Term
Clay content of soils increases in this direction in GA
Definition
NW
Term
Common sources of energy
Definition
-forage
-grain
-byproducts
-fat
Term
Corn is ensiled because...
Definition
they’re after the energy
Term
Creeping rooted
Definition
this means it has a tap root and roots branching out from it
Term
Cyanide blocks...
Definition
oxygen from getting into the mitochondria.
Term
Cyanide is rapidly absorbed from...
Definition
the stomach, lungs, mucosal surfaces, and unbroken skin.
Term
Dhurrin (prussic acid) is most prevalent in...
Definition
stressed sorghum plants
Term
Do not graze after this date during establishment year
Definition
June 1
Term
Dormancy is important in alfalfa because...
Definition
it controls autumn growth and regrowth rate during the year
Term
Drought tolerant varieties of perennial ryegrass exist and are used in...
Definition
Australia, Israel
Term
Each compartment of the ruminant stomach has a different...
Definition
stomach lining
Term
Effects of tall fescue Endophyte Toxin in Cattle
Definition
-vasoconstriction
-decreased prolactin
Term
Endophyte fungus does not ______ plant cells, rather...
Definition
penetrate
grows in between cell walls
Term
Energy is derived from...
Definition
digestion of feedstuffs
Term
Epithelium in ruminants possess multiple layers, referred to then as...
Definition
stratified squamous epithelium
Term
Esophageal Impaction (Choke) in horses
Definition
Foreign object or feed lodging in esophagus
Term
Establishment and Fertility of Italian ryegrass
Definition
Same as Perennial ryegrass
Term
Excess calories are stored in...
Definition
fats
Term
Excess forage stored because...
Definition
you don’t want it to go to waste
Term
Festulolium is a hybrid of...
Definition
meadow fescue x Italian ryegrass
Term
Fiber, protein, starch inside...
Definition
cell wall
Term
First GMO trades in [this year]
Definition
1996
Term
Gastrin
Definition
hormone which secretes gastric acid – 10-30 liters. Continues during feeding
Term
Gotta rely on feed, hay, and supplementation during winter because of...
Definition
forages being dormant and such
Term
Grass better for ruminants because...
Definition
that’s what they’re naturally designed for
Term
Grasses give you ______ and legumes give you ______
Definition
energy
proteins
Term
Growth Habit of Orchardgrass
Definition
-Dense tiller production, folded leaves
-Matures 10-14 days earlier than tall fescue
-Leaf area higher in canopy than other cool season grasses (implications for grazing)
-Requires vernalization (cold, light requirements)
+Matures early – (spring implications)
-Better adapted as hay crop
Term
Growth Habit of Tall Fescue
Definition
Bunchgrass
Term
High quality forage contains how much CP?
Definition
about 18-20% CP
Term
Higher ADF means more ______, which means lower ______
Definition
lignin
digestibility
Term
How do we know how much energy is in the forage that is being consumed, and how do we know we are meeting the needs of the animal?
Definition
We don’t.
Term
How is the nitrogen fixed by a legume transferred to a companion grass?
Definition
-Nitrogen transfer is in the form of root exudates
-The sloughing off of root cells,
-Turnover (growth and death) of roots within the growing season
Term
IVDMD
Definition
In vitro dry matter digestibility
Term
If you’re in a mild winter region, grow a [dormant or non dormant] variety of alfalfa
Definition
non dormant
Term
In Georgia, pearl millet has been selected for...
Definition
foraging
Term
In the South, you have more flexibility in planting date of annual ryegrass because of...
Definition
the frost date.
Term
Main driver of BCS
Definition
Energy Supplementation
Term
Marginal land has low...
Definition
fertility and pH
Term
MiGD
Definition
management intensive grazing dairy
Term
Microbes facilitate...
Definition
the conversion of forages into energy
Term
Microbes that pass from the rumen will be digested in the...
Definition
abomasum
Term
Minimum annual rainfall for perennial ryegrass
Definition
18-25 inches (450-630 mm)
Term
Minimum annual rainfall for tall fescue
Definition
18-25 inches (450-630 mm)
Term
Most of the soil here in Georgia is ______ in terms of selenium
Definition
marginal
Term
Most warm season annual hybrids are vegetatively propagated due to...
Definition
lesser ability to use seeds.
Term
Mow bahiagrass to [this height] for weed control
Definition
2-3” high
Term
NDF basically measures...
Definition
total cell wall content in the plant
Term
NUE =
Definition
N uptake/N applied
Term
Net energy
Definition
assigns the proportion of that feedstuff which meets Maintenance, growth, lactation, gestation
Term
New improved varieties of bahiagrass are bred for...
Definition
more leaf, less stem/roots
Term
One of the problems we have with alfalfa in Ga
Definition
nematodes
Term
Optimum germination temperature for cereal rye
Definition
25-31°C (77-88°F)
Term
Our expectation of a productive female
Definition
-Maintain her body weight / condition
-Deliver a live offspring without difficulty
-Come into heat promptly
-Conceive early in the breeding season
-Nourish a developing fetus
-Adequately nurse the offspring through to weaning
-Milk production
Term
Pancreatic juice stimulated by...
Definition
presence of feed in stomach, secretion continuous but gets heavier with food
Term
Parietal cells produce...
Definition
HCl
Term
Parturition
Definition
the action of giving birth to young; childbirth
Term
Perenial ryegrass can stay there ______ years
Definition
6-7 years
Term
Prussic Acid present in this part of the sorghum plant
Definition
young tissues or stressed tissues
Term
Prussic acid in sorghums leads to...
Definition
hydrogen cyanide
Term
Reasons for use of Energy Supplementation
Definition
Meet energy demands when pasture energy is insufficient
Term
Red clover will give you good production for about [this many years]
Definition
2
Term
Ruminal Tissues are ______ epithelia
Definition
squamous
Term
Second application of N [this many days] after seeding bahiagrass
Definition
60 days
Term
Sections of the horse small intestine
Definition
-duodenum
-jejunum
-ileum
Term
Some Non-legume Dicots
Definition
-Chicory
-Brassicas
-Plantain
Term
Sorghum is valuable because of...
Definition
its tolerance to drought
Term
Storage organ for alfalfa
Definition
the crown, not the roots
Term
Symptoms of prussic acid poisoning
Definition
*death 2-3 minutes after signs develop.
*act excited, apprehensive, generalized muscle tremors
*rapid breathing, dyspnea (open mouth), gasping
*increased salivation
*involuntary urination and defecation
*clonic convulsions (muscles contract, relax)
*dilated pupils
*mucous membranes bright pink, blood very bright red
Term
TDN (total dietary nutrients)
Definition
TDN is our common measure of feedstuff energy
Term
TDN lower in hay because...
Definition
when you dry it, the cell contents kinda go away
Term
Tall Fescue Endophyte Transmitted through...
Definition
seed
Term
Tall fescue has no fixed genetic form. What does this mean?
Definition
all plants in a cultivar are different
Term
The best way to asses the effectiveness and adequacy of a nutritional management program
Definition
to body condition score the cow herd
Term
The brown rib mutation changes...
Definition
the amount of lignin in the cell wall.
Term
The cheapest way to harvest forages
Definition
The cheapest way to harvest forages is the animal to harvest it
Term
The composition of the cell wall is important for...
Definition
the breakdown of the cell wall
Term
The first thing the energy from the forage is gonna be used for
Definition
maintenance
Term
The largest crop in Cal is ______
Definition
alfalfa
Term
The meaning of alfalfa is...
Definition
horsepower
Term
The omasum is kinda like a...
Definition
binder
Term
The only nutrient you need to worry about for alfalfa
Definition
K
Term
The problem with orchard grass
Definition
it lacks heat tolerance
Term
The seed head of pearl millet is vulnerable to...
Definition
Ergot
Term
Tifton 85 Hybrid Bermudagrass is a hybrid of...
Definition
common bermudagrass and stargrass
Term
Tifton 9 bahiagrass improved for...
Definition
-yield
-seedling vigor
Term
VFA
Definition
volatile fatty acids
Term
Varieties of sorghum used for forage are being selected for...
Definition
low prussic acid
Term
Warm season grasses store their carbs as ______
Definition
starch
Term
We focus on the continental type of tall fescue because...
Definition
it’s not summer dormant
Term
We try to incorporate ______ into the non dormant types of alfalfa
Definition
cold tolerance
Term
What is the overall objective of the feeding / supplementation program?
Definition
-Extend the forage base
-Meet nutritional deficiencies
-Alter cow production

You have to know where you want to go before you can get there.
Term
When you put plants too close to each other,...
Definition
they compete with each other and not grow very tall.
Term
When you reduce the amount of lignin, the plants become more vulnerable to...
Definition
lodging, which is falling over.
Term
Where Did Alfalfa Come From?
Definition
this is basically the center of origin
[image]
Term
William Maclure
Definition
Maclure is known as the father of geology in the US; he founded the USGS
Term
With ADF, you measure...
Definition
digestibility
Term
You need ______ to maintain apomictic
Definition
diploid
Term
You wanna graze before this stage of the plant's growth
Definition
stem elongation
Term
______ controls the depth of dormancy
Definition
Temperature
Term
______ stimulate stem elongation and flowering
Definition
longer days in spring
Term
a benefit of alfalfa
Definition
N fixation
Term
a characteristic of the genetic diversity of Apomictic tetraploids
Definition
seed identical to parents
Term
a chemical horse saliva contains
Definition
sodium bicarbonate
Term
a difference between clover and alfalfa leaflets
Definition
In clover, the leaflets are equidistant
In alfalfa, the middle leaflet has a longer pedicel
Term
a disease that annual ryegrass is susceptible to
Definition
gray leafspot
Term
a disease that can affect tall fescue
Definition
brown patch
Term
a disease that can be caused by Lolitrem alkaloids produced by endophyte in perennial ryegrass
Definition
ryegrass staggers
Term
a food additive that can affect nutrient requirements
Definition
Ionophore
Term
a pest that harms alfalfa that happens to be toxic to horses
Definition
blister beetle
Term
a problem you could have if you graze after a plant's stem elongation
Definition
nitrate toxicity
Term
a variety of alfalfa known for cold tolerance
Definition
Grimm
Term
activity level of pancreatic juices in horses
Definition
Low activity
Term
adaptation of Italian ryegrass
Definition
More southern than Perennial ryegrass (less winter hardy)
Term
advantages of polyploid cultivars of bahiagrass
Definition
Polyploids always get more biomass and more vigor and such; more vigorous plants
Term
age of plant vs. % digestibility
Definition
% digestibility goes down as the plant ages
Term
age of plant vs. % protein
Definition
% protein goes down as the plant ages
Term
alfalfa when it comes to causing bloat
Definition
All varieties are capable of inducing bloat
Term
amount of K required by bermudagrass
Definition
Requires HIGH potassium (K 1/2 of N)
Term
amount of N to apply when seeding summer annuals
Definition
Responds to N up to 200 lbs/A, but more than 100 lbs/A is considered wasteful
Term
amount of N with which to fertilize Soft Red Winter Wheat at jointing
Definition
150 lbs N/A
Term
amount of N with which to fertilize Soft Red Winter Wheat at planting
Definition
30 lbs N/A
Term
amount of P and K needed when seeding summer annuals
Definition
Needs 30-60 lbs/A P and K, VERY EFFICIENT
Term
amount of annual maintenance cost taken up by feeding livestock
Definition
approx 45-50%
Term
amount of energy in a forage vs. amount of fiber in a forage
Definition
inversely proportional
Term
amount of energy in a forage vs. amount of forage consumed
Definition
directly proportional
Term
amount of fiber in a forage vs. amount of forage consumed
Definition
inversely proportional
Term
amount of grain a horse should consume
Definition
No more than 0.75% BW at one time
Term
amount of perennial ryegrass to plant per acre
Definition
20 lbs/Acre
Term
amount of production from dallisgrass
Definition
low
Term
amount of saliva produced by horses per day
Definition
2.4-3.2 gal per day
Term
amount of seed produced by pearl millet
Definition
The seed head produces lots of seed
Term
amount of seed produced by sterile hybrid offspring of bermudagrass
Definition
very little, if any
Term
amount of seed to plant when seeding summer annuals
Definition
Plant 25 lbs seed on narrow rows
Term
amount of stubble to leave after grazing a summer annual
Definition
leave 9-12 inches stubble
Term
amount of time needed for a horse to adapt to dietary changes
Definition
at least 3 weeks
Term
amount of yield from Elephantgrass (Napiergrass)
Definition
high yielding
Term
an advantage of Tifton 9 bahiagrass over Pensacola bahiagrass
Definition
Tifton 9 bahiagrass produces 40% more forage than Pensacola
Term
an advantage of bahiagrass over other forages
Definition
it requires less N and tolerates abusive grazing practices.
Term
annual ryegrass tolerance to grazing
Definition
Tolerant of continuous grazing
Term
another fungal endophyte species is also present in...
Definition
ryegrass
Term
apply this in this amount to maximize growth of cereal rye
Definition
Apply 40-60 lbs/A of N at emergence to maximize fall growth.
Term
are horses ruminants?
Definition
no
Term
bahiagrass is not for you if you're trying to...
Definition
maximize production
Term
bahiagrass prefers these soils
Definition
sandy
Term
benefits of orchardgrass being an obligate cross pollinator
Definition
A lot of genetic variability (plastic population)
Term
benefits of perennial ryegrass being an obligate cross pollinator
Definition
A lot of genetic variability (plastic population)
Term
best soils for sorghum and pearl millet
Definition
Sandy loam soils best – drainage important
Term
best way to manage seedling diseases of rye
Definition
making sure it don’t go to seed
Term
better use of Italian ryegrass
Definition
Better as a hay/haylage crop than as a grazing crop
Term
c'tration of sodium bicarbonate in horse saliva is directly proportional to...
Definition
rate of secretion
Term
can annuals and perennials in the genus Medicago hybridize?
Definition
no
Term
can hay from infected fescue be toxic?
Definition
yes
Term
can perennial ryegrass be used for turfgrass?
Definition
in some areas, it is
Term
center of origin for orchardgrass
Definition
eastern Europe/temperate Asia (Persia)
Term
center of origin for pearl millet
Definition
Center of origin appears to be Ethiopia
Term
center of origin for sorghum
Definition
Center of origin in northwestern Africa
Term
climates in which tall fescue can contract brown patch disease
Definition
hot, humid climates
Term
close ups of the lining of the parts of the ruminant stomach
Definition
[image]
Term
combine cereal rye with this to extend the grazing season
Definition
Combine with ryegrass which peaks high in spring ….extended grazing season.
Term
companion species that are grown with perennial ryegrass
Definition
Prostrate legumes (white clover in most of the world)
Term
companion species that can be grown with orchardgrass
Definition
Upright legumes (red clover and alfalfa)
Term
competitiveness of bahiagrass with other species
Definition
competitive with other species
Term
conditions under which tall fescue endophyte is increased
Definition
drought
Term
cool season grasses better adapted to this part of USA
Definition
northern USA
Term
cool season grasses store their carbs as ______
Definition
fructans
Term
cool-season grasses sensitive to this during stem elongation period
Definition
grazing
Term
cultivars of bahiagrass that are Apomictic tetraploids
Definition
‘Argentine’
Term
cultivars of bahiagrass that are Sexual diploids
Definition
-‘Pensacola’
-‘Tifton 9’
Term
depiction of different architectures of alfalfa depending on type of dormancy
Definition
[image]
Term
depiction of how legumes form root nodules
Definition
[image]
Term
depiction of the alfalfa crown
Definition
[image]
Term
depiction of the equine digestive tract
Definition
[image]
Term
depiction of the pasture carbon cycle
Definition
[image]
Term
depiction of the ruminant digestive tract
Definition
[image]
Term
depictions of the chambered stomach of ruminants
Definition
[image]
Term
depth at which to plant perennial ryegrass
Definition
Plant 0.25-0.5 inches deep
Term
description of the rhizomes of bahiagrass
Definition
thick vigorous rhizomes
Term
description of the Argentine cultivar of bahiagrass
Definition
leafier than diploid, fewer panicles
Term
description of the bunchgrass habit of tall fescue
Definition
-Dense tiller production
-Weakly rhizomatous
-A lot of leaf area close to soil surface
Term
desired planting density for bahiagrass
Definition
Plant 35 lbs seed/A
Term
desired planting depth for bahiagrass
Definition
0.5 inches
Term
detriment of orchardgrass being an obligate cross pollinator
Definition
-Difficult to breed
-Difficult to fix a genetic form for future generations
-Seed production issues
Term
detriment of perennial ryegrass being an obligate cross pollinator
Definition
-Difficult to breed
-Difficult to fix a genetic form for future generations
-Seed production issues
Term
disease that can be caused by selenium deficiency
Definition
“White Muscle” disease
Term
disease that very easily infects alfalfa
Definition
phytophthora
Term
disease that's the biggest problem for rye
Definition
seedling blight
Term
do you need coal for direct burning?
Definition
no; this can be used with coal
Term
does perennial ryegrass have the same resistance as tall fescue?
Definition
no
Term
does wheat require vernalization?
Definition
yes
Term
drought tolerance of annual ryegrass
Definition
intolerant of drought
Term
drought tolerance of orchardgrass
Definition
More drought tolerant than perennial ryegrass, less than tall fescue
Term
dry matter production of warm season annual grasses
Definition
high – 10,000 lbs DM/A (clipped plots)
Term
ease of dallisgrass seed production
Definition
difficult
Term
ease of establishment of dallisgrass
Definition
difficult
Term
ease of managing elephantgrass (napiergrass)
Definition
difficult
Term
effectiveness of elephantgrass (napiergrass) for silage
Definition
OK for silage
Term
empty pH in horse stomach
Definition
1.5-2.0
Term
environmental causes of stress in sorghum plants
Definition
-drought
-frost
Term
enzymatic activity of horse saliva
Definition
Little to no enzymatic activity
Term
factors in the growth distribution of cool season grasses
Definition
-Reproductive vs. vegetative growth
-Higher temperatures in summer
-Drought
Term
festulolium is a hybrid between...
Definition
fescue and annual ryegrass
Term
flooding tolerance of annual ryegrass
Definition
tolerant of short duration flooding
Term
for horses, protein ______ is more important than ______
Definition
quality
quantity
Term
forages in which nitrate poisoning is a problem
Definition
-sorghum/sudan
-millets
-wheat
Term
forages in which prussic acid can be a problem
Definition
Sorghum/sudangrasses
Term
fucntion of the rumen
Definition
basically a fermentation vat
Term
function of abomasum
Definition
releases pepsin & acids for typical protein digestion
Term
function of alkali and bicarbonates secreted by pancreas into small intestine
Definition
buffer the acid ingesta leaving the stomach
Term
function of horse esophagus
Definition
Transports food from mouth to stomach by muscular contractions
Term
function of horse saliva in digestive system
Definition
Provides lubrication and buffers proximal stomach
Term
function of large intestine in horses
Definition
micorbial degradation and absorption of FA
Term
function of mouth in horses
Definition
reduction of particle size, no remastication
Term
function of mouth in ruminants
Definition
remastication
Term
function of mucousal tissue of abomasum
Definition
secretes enzymes to assist in lipid and protein degradation
Term
function of small intestine in horses
Definition
absorbtion of lipids and proteins
Term
function of small intestine in ruminants
Definition
absorbtion of lipids and proteins
Term
function of stomach in horses
Definition
protein and starch digestion, lip metabolism
Term
function of stomach in ruminants
Definition
lipid, sugar, protein + CHO, there are some energy losses, microbial FA and proteins are also produced. These are digested in lower GI
Term
function of the fundic region of the glandular surface of the horse stomach
Definition
fluids produced here
Term
function of the pyloric sphincter
Definition
controls how much is going into the small intestine
Term
function of the squamous region of horse stomach
Definition
mostly for absorption
Term
function of the trypsin, lipases, and amylases secreted by the pancreas into the small intestine
Definition
digestion of fats, proteins, and carbohydrates
Term
functions of the alfalfa crown
Definition
-Site of regrowth
-storage compounds for stress survival (carbohydrates, proteins, fatty acids, etc.)
Term
functions of the cells in the ruminal tissues of ruminants
Definition
Cells perform several functions including nutrient exchange and protection
Term
genetic forms of orchardgrass that exist
Definition
-diploid
-tetraploid
-hexaploid
Term
genetics of Italian ryegrass
Definition
-Same as Perennial ryegrass
-Tetraploids have same characteristics as those in perennial ryegrass
Term
gotta balance energy with...
Definition
protein
Term
grazing tolerance of creeping rooted alfalfa
Definition
May or may not be grazing tolerant!
Term
grazing tolerance of tall fescue
Definition
Very tolerant of grazing (until summer)
Term
growth habit of Italian ryegrass
Definition
-Requires no cold treatment to flower
-More winter active than Perennial ryegrass
+Less tolerant of winters
-Flowers if day length exceeds 11 hours.
-Short lived
Term
growth habit of bahiagrass
Definition
Dense rhizomatous grass
Term
have research with beef cattle systems measured the same carbon accumulation as we have in the pasture-based dairies?
Definition
no
Term
height at which to graze cereal rye
Definition
Graze once 4-6” tall
Term
hematite rich in...
Definition
Fe
Term
horse esophagus located on...
Definition
left side of trachea
Term
horses chew more for ______ than ______
Definition
roughage
concentrates
Term
horses have lips for...
Definition
prehension
Term
how Body condition score is ranked
Definition
Body condition score is ranked on a scale of 1 which is severely emaciated to 9 which is severely obese
Term
how Elephantgrass (Napiergrass) is propagated
Definition
Propagated by stem cuttings; this is actually a similarity to sugarcane
Term
how bahiagrass interacts with legumes
Definition
Legumes limited by competitive ability of bahia

white, crimson, arrowleaf clovers OK, but need to bring pH up and fertilize
Term
how bahiagrass is propagated
Definition
seed propagated, but dormancy and slow germination problems
Term
how bermudagrass is propegated
Definition
vegetatively
Term
how body condition scoring can be used
Definition
-to make decisions for future feeding needs
-it can indicate either additional feed is required or a decrease in the energy supplied could be realized
-Gauge effectiveness of feeding program
-Decision tool to determine future feeding needs
Term
how energy is the Main driver for production
Definition
it's the main driver for Growth, Reproduction, and Lactation
Term
how far apart the rows should be when planting summer annuals
Definition
7 inches or 17.5 cm
Term
how geologic age of soil affects mineral nutrient concentration in forages
Definition
Inceptisols (juvenile) have higher CEC than Ultisols

Note: Primary soil types in GA are an Ultisols
Term
how germination works in alfalfa seed pods
Definition
In each pod, when one seed germinates, it prevents the others from germinating
Term
how grain should be used in terms of feeding horses
Definition
Use to supplement pasture/hay program; not a necessity
Term
how grazing tolerant alfalfa is selected
Definition
Selected under severe grazing for survival
Term
how hybrid bermudagrass must be propagated
Definition
vegetatively
Term
how long feed can stay in rumen
Definition
Feed can stay in rumen for couple days
Term
how long food can stay in the horse large intestine
Definition
60 hours
Term
how long food remains in horse stomach
Definition
Digesta remains a short time, dependent on feedstuff
Term
how most warm season summer annuals are propagated
Definition
vegetatively
Term
how much most horses eat
Definition
~3% of BW
Term
how much tall fescue to establish at a time
Definition
20 lbs/Acre
Term
how much to fertilize tall fescue in spring (early-mid February)
Definition
fertilize with 60-80 lbs N (P, K if needed)
Term
how often a horse should consume grain
Definition
Evenly spaced, regular feedings
Term
how parent material affects mineral nutrient concentration in forages
Definition
Innate fertility of magma from which soils were derived
Term
how plant species affects mineral nutrient concentration in forages
Definition
Legumes (clover, alfalfa) tend to be higher in minerals than grasses (tall fescue, bermudagrass)
Term
how potato leafhoppers harm alfalfa
Definition
They pierce the leaf, inject saliva, and feed like mosquitoes; the saliva contains chemicals toxic to the plant; characteristic due to V shape on leaflets
Term
how reed canarygrass should be measured
Definition
manage to avoid low quality forage in spring
Term
how soil texture affects mineral nutrient concentration in forages
Definition
Sandy soils have lower CEC than clay soils

Selenium not present in sandy soils
Term
how some new varieties of alfalfa are resistant to potato leafhoppers
Definition
Newest varieties have gladular hairs (these are repellent to the leaf hopper; prevents insect from coming into contact with the leaf)
Term
how sorghum and pearl millet respond to drought
Definition
increasing tillering
Term
how sorghum and pearl millet were originally grown
Definition
Both originally grown as tall crops used for grain
Term
how summer annuals can be seeded
Definition
Summer annuals can be seeded into dead winter sod directly or seeded into clean-tilled fields
Term
how terrain can affect nutrient requirements
Definition
because some terrain requires more energy than other terrain
Term
how the endophyte in tall fescue is transmitted
Definition
vertical transmission
Term
how the feed or amount of feed given to a horse should be changed
Definition
Change type of feed or amount gradually over 1 week
Term
how to calculate Nutrients Needed in Supplement
Definition
Animal Nutrient Requirements - Nutrients Supplied by Forage = Nutrients Needed in Supplement
Term
how to convert existing tall fescue to non-toxic endophyte infected varieties
Definition
-Apply RoundUp, which will kill everything
-Split applications of Roundup 4-6 weeks apart (1 qt/A)
-Direct drill into existing stand
Term
how to graze bahiagrass in establishment year
Definition
No grazing in establishment year
Term
how to graze perennial ryegrass during the first year when trying to perenniate
Definition
When trying to perenniate - graze lightly first year (start when 10” tall, don’t defoliate below 1.5”)
Term
how to graze perennial ryegrass if using it as an annual
Definition
If using as an annual – graze lightly in early spring, more intensively as spring progresses (prevent seed head production)
Term
how to graze tall fescue during the first year
Definition
Graze lightly first year (start when 6” tall, don’t defoliate below 1.5”)
Term
how to manage Wild-type Infected Fescue
Definition
-keep pasture vegetative
-minimize seedheads by grazing frequency or clipping
-add legumes to dilute toxic effect, since animal is likely to ingest legumes before ingesting tall fescue
-graze warm season grasses in summer to avoid temperature problems
-creep feed calves on non-fescue forage
Term
how to prepare the ground for growing bahiagrass
Definition
Disk! and roll field to get firm contact
Term
how to use perennial ryegrass in Georgia
Definition
Use as an annual, or short-lived perennial
Term
how you can graze warm season annual grasses
Definition
Can rotationally graze for 90 days
Term
ideal seeding depth for cereal rye
Definition
1-2 inches deep
Term
ideal seeding rate for cereal rye
Definition
120-150 lbs/A
Term
in cows, complex carbohydrates are digested at...
Definition
the front end
Term
in horses, complex carbohydrates are digested at...
Definition
the back end
Term
in horses, the fermentation of digesta is beneficial for...
Definition
structural CHO
Term
in the horse digestive system, the small intestine is the primary site of digestion and absorption of...
Definition
-Fat
-soluble CHO
-protein
Term
is alfalfa subsidized?
Definition
no
Term
is defaunation of protozoa in the horse large intestine harmful?
Definition
no
Term
is vernalization required for cereal rye?
Definition
no
Term
is wheat used for forages?
Definition
it is not normally grown for forage
Term
keep tall fescue pasture in this state
Definition
vegetative
Term
lodging
Definition
falling over
Term
longer days in spring stimulate ______ in cool-season grasses
Definition
stem elongation and flowering
Term
macro-minerals
Definition
needed in >1g/day
Term
manage for...
Definition
quality
Term
micro-minerals
Definition
needed in <1g/day
Term
minimize tall fescue seedheads by...
Definition
grazing frequency or clipping
Term
mucin casts
Definition
Damage to the gut structure, as can be caused by excess organic acid production in the hindgut, appears as mucin casts in the manure, indicating the gut lining is being stripped off.
Term
nutrient that's not present in sandy soils
Definition
Se
Term
on winter annuals, we want to see ______, not ______
Definition
grazing
harvest and nutrient management
Term
one of the first people to experiment with alfalfa
Definition
Jefferson
Term
one of the problems with growing alfalfa in the late 18th century
Definition
acid soil
Term
one way impactions in the horse large intestine can occur
Definition
Impactions can occur in horses normally fed grain, then hay
Term
one way to manage seedling diseases of rye
Definition
One way to manage is to graze heavily or mow to avoid seed heads; best way to manage it is to make sure it don’t go to seed.
Term
orchardgrass excellent for growing...
Definition
companion species
Term
orchardgrass is better adapted as this type of crop
Definition
hay crop
Term
origin of tall fescue
Definition
European/North African origin – main germplasm centers
Term
our common measure of feedstuff energy
Definition
TDN
Term
pH at which growth of orchardgrass occurs best
Definition
pH 6.0-7.0
Term
pH range for bermudagrass
Definition
pH 5.5 or above
Term
pH range for perennial ryegrass
Definition
pH range of 5.1 to 8.4
Term
pH range tall fescue performs best in
Definition
pH 6-7
Term
pH range that cereal rye can tolerate
Definition
4.0-8.0
Term
pH range that cereal rye grows best in
Definition
5.8-6.5
Term
pancreatic secretion gets heavier with...
Definition
food
Term
part of Georgia where reed canarygrass may be useful
Definition
may be useful in N. Georgia mountains
Term
part of US tall fescue is adapted to
Definition
entire eastern US
Term
pasture based dairies use small framed cattle because...
Definition
the large frame cattle can't do all that walking to harvest forages
Term
percent of forage and concentrate needed for weanling horses
Definition
30% forage, 70% concentrate
Term
percent of forage and concentrate needed for yearling horses
Definition
40% forage, 60% concentrate
Term
perennial ryegrass is excellent for growing...
Definition
companion species
Term
perennial ryegrass requires this for survival in Georgia
Definition
irrigation
Term
plant tall fescue at this depth
Definition
plant 0.25-0.5 inches deep
Term
plants go dormant because of...
Definition
temp and photoperiod
Term
primary type of soil in Georgia
Definition
ultisols
Term
problems with propagating bahiagrass
Definition
-dormancy
-slow germination
Term
propagation of bahiagrass
Definition
Seeded – No sprigging required
Term
protozoa help digest...
Definition
fiber
Term
pyloric region of the glandular surface of the horse stomach produces...
Definition
gastrin
Term
quality and hardiness of common bermudagrass
Definition
-low quality
-winter hardy
Term
quality and hardiness of stargrass
Definition
-high quality
-winter sensitive
Term
quality of feed vs. energy and intake
Definition
Low quality feed = low energy and low intake
Term
rate at which to fertilize perennial ryegrass
Definition
20 lbs/A N, P, K
Term
rate at which to fertilize perennial ryegrass during spring
Definition
fertilize with 60-80 lbs N (P,K if needed)
Term
rate of fertilization for tall fescue when establishing it
Definition
Fertilize with 20 lbs/A N, P, K
Term
rate of passage in horse digestive tract
Definition
rapid
Term
recommended planting depth for wheat
Definition
1 inch
Term
recommended planting rate for wheat
Definition
150 lbs/A
Term
recommended row width for wheat
Definition
6-8 inches
Term
recommended time to plant wheat in Georgia's Lower Coastal Plain region
Definition
November 15 - December 1
Term
recommended time to plant wheat in Georgia's Mountain/Limestone Valley region
Definition
October 10 - November 1
Term
recommended time to plant wheat in Georgia's Piedmont region
Definition
October 25 - November 15
Term
recommended time to plant wheat in Georgia's Upper Coastal Plain region
Definition
November 7 - December 1
Term
recommended tool with which to plant wheat
Definition
grain drill
Term
relationship between Content and intake
Definition
Content and intake go together
Term
relationship between TDN and quality of feedstuff
Definition
Direct relationship
Term
relationship between forage, BCS, and overall performance
Definition
the better the forage, the better the body condition score and the better the reproductive and overall performance
Term
response of bermudagrass to N
Definition
responds well to N
Term
root penetration of sorghum and pearl millet
Definition
Rapid and deep root penetration
Term
seasonal growth habit of dallisgrass
Definition
Early spring greenup; late fall die back
Term
seasons in which the amount of tall fescue endophyte is highest
Definition
spring and fall
Term
sections of the horse large intestine
Definition
-cecum
-large colon
-small colon
Term
seedbed needed for bahiagrass
Definition
Fine firm seed bed necessary
Term
seedling blight is easily managed by...
Definition
treating seed with fungicide
Term
should you use Kentucky 31 tall fescue?
Definition
no
Term
size of GI tract in neonatal foal
Definition
3.5% BW is GI tract, 3.5% liver
Term
size of bahiagrass seed
Definition
Small seed
Term
size of large intestine compared to horse digestive system
Definition
65% of tract
Term
size of small intestine in horse digestive tract
Definition
Approximately 70 feet (30% tract)
Term
size of small intestine increases until...
Definition
4 weeks of age
Term
size of stomach in horse digestive tract
Definition
Small! – 8-10% of GI tract
Term
size of stomach in neonatal foal
Definition
Stomach greater than 10% of GI tract
Term
some bahiagrass varieties that are VERY TOLERANT of close grazing
Definition
-Argentine
-Pensacola
Term
soil pH bahiagrass grows in
Definition
pH 5.5-6.5
Term
soil pH range at which perennial ryegrass growth best occurs
Definition
pH 5.5-7.5
Term
soil pH range for tall fescue
Definition
5.1 to 8.4
Term
some (Sub)Tropical Perennial warm season grasses
Definition
-Bermudagrass
-Bahiagrass
-Dallisgrass
Term
some Bioenergy Opportunities for switchgrass
Definition
-fermentation
-gasification
-direct burning
Term
some Biotech traits in alfalfa
Definition
-Roundup Ready
-Improved nutritional value
-Improved leaf retention
-Production of novel products
Term
some Energy Supplementation Considerations
Definition
-Begin feeding before it is too late
-Response improves with long term low level supplementation
-Feeding low levels of energy (w/out adequate diet protein) decreases overall energy intake
-High starch supp. decreases fiber digestibility (Negative Effect)
-Usually contain < 20% CP (pasture usually adequate)
-Do not feed energy when high CP supplement will improve performance
-Grain is an energy supplement for forage
-High starch supp. work best with moderate to high quality forage
Term
some Enzymatic secretions that are secreted into the small intestine
Definition
-Pancreatic juice
-bile
-Disaccharidases
Term
some Other Important Cool-Season Grasses (Northern US)
Definition
-reed canarygrass
-smooth bromegrass
-Timothy
-Kentucky bluegrass
Term
some Results of fescue toxicosis
Definition
-reduces calf weaning percentage
-reduces calf weaning weight
-depresses feed intake
-reduces live weight gain per acre
-reduces milk production
-increases body temperature in summer
Term
some Seedling Diseases of Rye
Definition
-seedling blight
-leaf rust
-anthracnose
Term
some VFA (volatile fatty acids)
Definition
-Acetate
-propionate
-butyrate
-lactate
Term
some annual Cool-Season Forage Grasses
Definition
-Annual Ryegrass
-Wheat & Rye
-Oats & Triticale
Term
some annual warm season grasses
Definition
-Sorghum
-Sudangrass
-Sorghum x Sudangrass
-Pearl Millet
-Browntop Millet
-Crabgrass
Term
some brassicas
Definition
-rape
-turnips
-kale
-etc.
Term
some characteristics of bermudagrass
Definition
-Sod forming
-High nutritive value if closely grazed +N (+N means fertilized with N)
-Drought tolerance
-Water logging tolerance
-Few disease or insect problems (armyworms)
-Rapid curing for hay
-Rapid regrowth
-Tolerant of frequent harvest thanks to rhizomes and stolons
-N in split applications
-K is necessary for rhizome survival
Term
some characteristics of cool-season grasses
Definition
-C3 photosynthesis -Grow best in cool weather -Geographically better adapted in northern USA -Produce well during spring, autumn, and to lesser extent winter -Require vernalization to flower (important in seed production) -Stem elongation period—sensitive to grazing
Term
some characteristics of endophyte-free fescue
Definition
-lacks persistence in Georgia (in general)
-less disease/insect/nematode resistance
-better livestock performance
Term
some characteristics of forage chickory
Definition
-Drought tolerant
-High water content
-High in minerals
-NOT a legume (so no N fixation)
Term
some characteristics of novel endophyte infected fescue (MaxQ)
Definition
-endophyte doesn’t produce toxic alkaloids
-still has some anti-insecticidal alkaloids
-excellent animal performance plus survival
Term
some conditions that can happen in the large intestine in horses that are fed hay then grain
Definition
Laminitis and colic
Term
some crops that are subsidized in the U.S.
Definition
-corn
-soybeans
Term
some details about Dallisgrass
Definition
-Permanent pasture
-Clay/loam soils with moisture
-Best in 35” rainfall or higher
-Early spring greenup; late fall die back
-High basal leaf area, which leads to higher tolerance to grazing
-Low production
-Establishment difficult
-Seed production difficult; ergot production by fungus in seedhead
Term
some details about Elephantgrass (Napiergrass)
Definition
-Tropical grass
-High yielding
-Very frost intolerant; this is why it couldn’t last more than 2 seasons
-Needs well-drained soils, pH>5.5
-Propagated by stem cuttings; this is actually a similarity to sugarcane
-Difficult to manage (grows too fast)
-OK for silage
-‘Mott’ dwarf elephantgrass-higher quality
Term
some details about Festulolium
Definition
-Ryegrass/fescue hybrids
-hybrids between ryegrass and fescue
-typically meadow fescue x Italian ryegrass
-goal = quality of ryegrass with persistence and disease tolerance of fescue….doesn’t always work
-may be more persistent than perennial ryegrass in GA but limited evaluation
-Not very common in SE because there hasn’t been much work on it
Term
some details about Reed Canarygrass
Definition
-very hardy—can be invasive
-flooding and drought tolerant
-use low alkaloid cultivars; the alkaloids come from the plant itself
-manage to avoid low quality forage in spring
-may be useful in N. Georgia mountains
Term
some details about bermudagrass
Definition
-South African through southeast Asian origin
-Highly variable morphologically
-May have vigorous rhizomes up to 1 m deep
-Also has vigorous stolons
-“Common” bermudagrass – naturalized, very invasive, winter hardy, low quality, low yield
-Introduced to US in 1807
Term
some details about endophyte infection in perennial ryegrass
Definition
-Neotyphodium lolii -“Ryegrass staggers” in sheep due to toxin lolitrem B -Similar situation as tall fescue
Term
some details about growing cool season grasses
Definition
-Sow in autumn (late September to early November in GA)
-Plant into well prepared seedbed, or no-till into killed sod
-Plant shallow!
-May mix with legumes, or seed legumes later
-Manage for quality
-Will need N fertilizer if grown alone
Term
some details about nitrate poisoning
Definition
-nitrates build up after drought, esp. on heavily fertilized pastures
-problem in sorghum/sudan, millets, wheat
-remains in hay
Term
some details about pearl millet and sorghum
Definition
-Some of world’s oldest cultivated plants
-Millet - Center of origin appears to be Ethiopia
-Sorghum – Center of origin in northwestern Africa
+Sorghum is valuable because of its tolerance to drought
-Both originally grown as tall crops used for grain
-Adapted to dry regions of the world
-Sandy loam soils best – drainage important
-Water use efficiency – Millet > Sorghum > Corn
-Respond to drought by increasing tillering
-Rapid and deep root penetration
Term
some details about perennial ryegrass
Definition
-Primary grass in UK, NZ, Europe, Aust.
-Pasture or silage; often monocultures + N
-High quality, persistent under close grazing, rapid establishment, palatable, compatible with white clover
-Likes N
-High carbohydrate levels in leaves (fructans) = energy (20-50% more than other temperate grasses)
Term
some details about prussic acid
Definition
-builds up after frost esp. in young tissue
+Sorghum/sudangrasses; Not in pearl millet
-causes suffocation
-hay and silage OK after short period
Term
some details about stargrass
Definition
-Tropical African origin
-Aggressive stolons; NO rhizomes
-No cold tolerance; little drought tolerance
-Can be crossed with bermudagrass, sterile seed
Term
some details about tetraploid perennial ryegrass
Definition
-fewer tillers, longer and broader leaves
-Better suited for companion species than diploids in temperate regions
-Shorter lived, but higher quality (soluble sugars) and more vigorous
Term
some details about the Adaptation of Annual Ryegrass
Definition
-pH range 5.0 - 7.8
-Responds well to N fertilizer
-Produces forage in late winter/spring
Term
some details about the Bunchgrass growing habit of perennial ryegrass
Definition
-Dense tiller production
-Adventitious roots at stem bases (nodes) – leaf only from new tillers
-A lot of leaf area close to soil surface (implications for grazing)
Term
some diseases that perennial ryegrass can contract
Definition
numerous fungal diseases (leaf spots, fusarium, brown patch, rust) in hot, humid climates
Term
some environmental factors that can affect nutrient requirements
Definition
-Temperature
-Season
Term
some environmental factors that can limit plant growth
Definition
-Nutrients
-Water
-Light
-Heat
Term
some factors that control mineral nutrient concentration in forages
Definition
-plant species
-soil texture
-parent material
-geological age of soil
Term
some factors that may alter the nutrient requirements of cattle
Definition
-age
-level of production
-breed
-stage of physiology
Term
some fermentation products
Definition
-VFA (volatile fatty acids)
-Electrolytes
-Water
Term
some forages that aren’t common in Georgia
Definition
-Aeschynomene
-Stylo
-Carpon Desmodium
Term
some fungal diseases orchardgrass is susceptible to
Definition
Susceptible to various fungal diseases (rust)– reduces quality
Term
some genetic forms of perennial ryegrass that exist
Definition
Both diploid and tetraploid forms exist
Term
some insect pests of alfalfa
Definition
-Potato Leafhoppers
-Alfalfa Weevil
-Several Aphids
-Plant Bug
-Lygus
Term
some macro-minerals
Definition
-K
-Mg
-Na
-S
-P
-Ca
Term
some micro-minerals
Definition
-Cu
-Fe
-Mn
-Zn
-Co
-I
-Se
Term
some mixtures of cool season plants you can sometimes find
Definition
-Alfalfa—orchardgrass
-White clover—tall fescue
Term
some novel products produced by alfalfa
Definition
-Industrial enzymes
-Plastics
Term
some other insects in Ga that can harm alfalfa
Definition
-Three cornered alfalfa hopper
-Blister beetle
Term
some pancreatic juices secreted into the small intestine
Definition
-trypsin
-lipases
-amylases
-alkali
-bicarbonates
Term
some perennial Cool-Season Forage Grasses
Definition
-Tall Fescue
-Perennial Ryegrass
-Festulolium (hybrid between fescue and annual ryegrass)
-Orchardgrass
Term
some pest problems with perennial ryegrass
Definition
-crown rust; stem rust—decreased palatability and nutritive value
-Argentine stem weevil
Term
some physiological factors that can affect nutrient requirements
Definition
-Lactation
-Gestation
Term
some primary cool season grasses for Georgia
Definition
-orchardgrass
-tall fescue
-annual ryegrass
-perennial ryegrass
Term
some sicknesses that can be caused by the alkaloid toxins produced by the tall fescue endophyte
Definition
-fescue foot
-fescue toxicosis
Term
some soil conditions that tall fescue can tolerate
Definition
Tolerates acid, infertile, poorly drained and drought-prone soils
Term
some sources of energy
Definition
-Fiber
-Protein
-Starch
-Fat
Term
some storage compounds stored in the alfalfa crown for survival
Definition
-carbohydrates
-proteins
-fatty acids
-etc.
Term
some summary details about bahiagrass
Definition
-tolerates broad pH range (5.5-6.5 best)
-tolerates low fertility
-tolerates close grazing
-resistant to most diseases
-prefers sandy soils
-thick vigorous rhizomes
-competitive with other species
-seed propagated, but dormancy and slow germination problems
Term
some summary details about orchardgrass
Definition
-very desirable, but lacks heat tolerance
-more persistent in GA than ryegrass
-high quality
-leaf diseases—esp. rust—can affect quality
Term
some summary details about tall fescue
Definition
-Endophyte helps survival esp. in south
-Novel endophytes have no animal problems
-High quality if grazed appropriately
-Good “stockpile” ability—maintains quality into winter (issue in north)
-Most of the seed for this is produced in Oregon
-Best choice for GA of cool-season grasses
Term
some summary details of perennial ryegrass
Definition
-Very high quality
-Regrowth needs N and water (cool helps)
-Poor drought and cold tolerance
-Grazing tolerant
Term
some things tall fescue endophyte can cause in horses
Definition
-Distocia
-retained placenta
-“red bag”
Term
some things that affect nutrient requirements
Definition
-Age
-Level of production
-Current and/or desired body condition
-Breed
-Physiology
-Pasture activity
-Terrain
-Pest load
-Feed Additives
-Environment
Term
some things that can cause Esophageal Impaction (Choke) in horses
Definition
-rapid eating
-poor dentition
-inadequate water
-consumption of bedding
Term
some things to do when growing alfalfa
Definition
-Well tilled, weed free seedbed
-Lime and fertilize as needed
-Plant after danger of frost
-Don’t grow in wet areas
-Harvest at early flower
-Control weeds
-Plow up when stands thin

not much has changed in ~ 2000 years
Term
some types of microbes that live in the horse large intestine
Definition
-protozoa
-bacteria
Term
some ways that the nutritive value of alfalfa has been improved
Definition
-Low lignin, improved digestibility
-Tannin containing (no bloat)
Term
some ways to improve Bermudagrass Pasture by overseeding
Definition
-Overseeding with annual ryegrass
-Overseeding with annual clovers or red clover
Term
something BCS is used for
Definition
the maintenance part; the animal itself
Term
something about the genetics of alfalfa in the center of origin
Definition
Lots of genetic diversity in center of origin
Term
something bad that happens to dallisgrass seedhead
Definition
ergot production by fungus in seedhead
Term
something bahia grass can tolerate
Definition
low fertility
Term
something hard to maintain in old types of bahiagrass, but could be easier to maintain in new types
Definition
legumes
Term
something present in the digesta taken from sheep
Definition
fibers
Term
something prussic acid causes in animals that consume it
Definition
suffocation
Term
something required for cool-season grasses to flower
Definition
vernalization
Term
something that may affect nutrient content more than soil fertility does
Definition
drought
Term
something that may cause mucin casts and diarrhea and bubbling
Definition
grain feed
Term
something that will seriously hamper the establishment of annual ryegrass
Definition
gray leafspot
Term
something toxic that is widespread in sorghums
Definition
Dhurrin (prussic acid)
Term
something you need for fermentation of switchgrass
Definition
cellulase
Term
sorghum and pearl millet are adapted to...
Definition
dry regions
Term
sorghum plant diverts ______ to utilize Dhurrin (prussic acid)
Definition
tyrosine
Term
sorghum, pearl millet, and corn in order of water use efficiency
Definition
Millet > Sorghum > Corn
Term
tall fescue endophytes are closely related to...
Definition
ergot
Term
tall fescue is excellent for growing...
Definition
companion legumes
Term
the 2 common probems with horse feeding
Definition
Impactions can occur in horses normally fed grain, then hay
Laminitis and colic in hay to grain fed horses
Term
the BCS of most cows
Definition
Most cows fall in the range of 3 to 7.
Most cows score from 2 to 4
Term
the Grimm variety of alfalfa known for...
Definition
cold tolerance
Term
the Growth Habit of Perennial Ryegrass
Definition
Bunchgrass
Term
the Major “nutrient” required by livestock
Definition
energy
Term
the absorption that happens at the microvilli in the abomasum
Definition
Microvilli in intestine are sites for passive (lipid) or active (peptide) absorption of nutrients.
Term
the activity of disaccharidases secreted into the horse small intestine changes with...
Definition
age
Term
the amount of Loss due to tall fescue endophyte
Definition
$700 Million to $1 Billion/yr
Term
the amount of bacteria in the large intestine of a horse is influenced by...
Definition
diet
Term
the amount of fat cover on cows is a good indicator of...
Definition
their energy status
Term
the amount of food a horse should consume
Definition
Total diet: 2-2.5% BW
Term
the amount of rainfall best for dallisgrass
Definition
Best in 35” rainfall or higher
Term
the amount of tall fescue that contains endophyte
Definition
95% of all “naturalized” populations
Term
the annual forage species that has the most aggressive growth
Definition
cereal rye
Term
the best way to graze annual ryegrass
Definition
short duration rotational grazing
Term
the climate tall fescue is adapted to
Definition
cool moist climates
Term
the climates orchardgrass is best adapted to
Definition
moderate moist climates
Term
the climates perennial ryegrass is adapted to
Definition
cool moist climates
Term
the cultivars of Reed Canarygrass to use
Definition
use low alkaloid cultivars
Term
the difference between TDN and energy
Definition
-TDN is our common measure of feedstuff energy
-Net energy assigns the proportion of that feedstuff which meets Maintenance, growth, lactation, gestation
Term
the digestion that occurs in the horse large intestine
Definition
fermentative digestion
Term
the enterprise you have impacts...
Definition
the soil and the environment
Term
the feeds that constitute the largest, most variable portion of supplementation
Definition
Stored or supplemental feeds
Term
the first limiting amino acid for horses
Definition
lysine
Term
the first part of the ruminant stomach forage goes to after consumption
Definition
reticulum
Term
the first place in the U.S. where alfalfa arrived
Definition
the SE
Term
the function of papillae in the stomach
Definition
Papillae in the rumen increase the surface area of the stomach to absorb products of fermentation
Term
the genetic characteristics of most bahiagrasses
Definition
Most bahiagrasses are apomictic tetraploids
Term
the genetics of Pensacola bahiagrass
Definition
‘Pensacola’ is a cross-pollinated diploid
Term
the genetics of Tifton 9 bahiagrass
Definition
‘Tifton 9’ newer variety selected for higher yield (out of Pensacola)
Term
the genus alfalfa is in
Definition
Medicago
Term
the goal of producing Festulolium
Definition
quality of ryegrass with persistence and disease tolerance of fescue….doesn’t always work
Term
the grass preferred by livestock producers in N. Georgia
Definition
tall fescue; it is very durable
Term
the kind of pasture dallisgrass is found in
Definition
permanent
Term
the land to use bahiagrass on
Definition
marginal land
Term
the largest cost area in animal enterprises
Definition
feeding livestock
Term
the layers of kaolinite are held together by...
Definition
H bonds
Term
the main tool for a cow to accomplish her assignment
Definition
adequate nutrition
Term
the most important contributor of minerals to livestock
Definition
forage
Term
the number of annuals in the genus Medicago
Definition
about 40
Term
the number of perennials in the genus Medicago
Definition
about 20
Term
the number of pounds of forage eaten is basically a correlation with...
Definition
% of body weight
Term
the old standard cultivar of tall fescue
Definition
Kentucky 31
Term
the only program left in the SE region for cool season forages
Definition
the one at UGA
Term
the pH for bahiagrass
Definition
tolerates broad pH range (5.5-6.5 best)
Term
the parts of tall fescue that contain endophyte toxin, from most to least
Definition
seedheads > stem+sheath > blade
Term
the primary grass in UK, NZ, Europe, Aust.
Definition
Perennial ryegrass
Term
the rate of rotation between paddocks depends on...
Definition
the rate of regrowth of forage, often ½ day to 2 days
Term
the regions on the glandular surface of the horse stomach
Definition
-fundic
-pyloric
Term
the relationship between tall fescue and the endophyte
Definition
Live in mutualistic relationship: Endophytes give plant cold and drought tolerance, insect resistance (greater growth and reproduction), MAMMALIAN RESISTANCE!!!
Term
the rotation that occurs in pastured dairy
Definition
they rotate between paddocks
Term
the scale of BCS
Definition
1-5
Term
the secret to using wheat as a forage
Definition
Don’t let plant develop past the joint stage while being grazed.
Term
the seed of pearl millet has lots of...
Definition
energy
Term
the soil tall fescue is adapted to
Definition
fertile well-drained soils
Term
the soil temperature needed to seed summer annuals
Definition
above 70°F (21°C)
Term
the soils best for dallisgrass
Definition
Clay/loam soils with moisture
Term
the soils needed by bermudagrass
Definition
Sandy-loam soils (drainage essential)
Term
the soils orchardgrass is intolerant of
Definition
compacted or heavy soils
Term
the soils orchardgrass prefers
Definition
Fertile well-drained soils
Term
the soils perennial ryegrass is adapted to
Definition
fertile well-drained soils
Term
the spring diseases of rye
Definition
-leaf rust
-anthracnose
Term
the systems bahiagrass is best suited for
Definition
low input systems
Term
the things involved in a forage system
Definition
soil, plants, and animals
Term
the tolerance that's a bigger concern than drought tolerance for perennial ryegrass
Definition
heat tolerance
Term
the type of grass Elephantgrass (Napiergrass) is
Definition
tropical
Term
the type of p'synth in cool-season grasses
Definition
C3
Term
the type of p'synth used by warm season grasses
Definition
C4
Term
the type of pollinator tall fescue is
Definition
obligate outcrosser
Term
the type of seeding bahiagrass is not good for
Definition
Not good for overseeding in winter.
Term
the types of fescue that are mainly used in Georgia
Definition
continental types
Term
the weather cool-season grasses grow best in
Definition
cool weather
Term
the year of establishment
Definition
the first year
Term
this happens when you grow 2 different species together
Definition
competition
Term
this is generally considered to be the main toxin in tall fescue
Definition
Ergovaline (an ergopeptine alkaloid)
Term
this is important for the breakdown of the cell wall
Definition
the composition of the cell wall
Term
this limits use of perennial ryegrass in Georgia
Definition
Georgia's hot, humid climate
Term
this person is known as the father of geology in the US; he founded the USGS
Definition
William Maclure
Term
this practice yields the greatest success with propagating hybrid bermudagrass
Definition
sprigging
Term
this stimulates saliva in horses
Definition
Physical presence of feed
Term
to meet nutrient needs, you have to extend...
Definition
the forage base
Term
tolerance of Elephantgrass (Napiergrass) to frost
Definition
very intolerant
Term
tolerance of dallisgrass to grazing
Definition
high tolerance
Term
tolerance of orchardgrass to shading
Definition
Tolerates shading better than other cool season perennial grasses
Term
tolerance of perennial ryegrass to flooding
Definition
Tolerant of long periods of flooding (15 to 25 days) if <80°F (27°C)
Term
toxicity of prussic acid
Definition
A concentration greater than 0.1 percent of dry tissue is considered highly dangerous.
Term
two chemicals that are higher on forage based diet
Definition
Acetate and butyrate
Term
two things bahiagrass can tolerate
Definition
-tolerates low fertility
-tolerates close grazing
Term
type of elephantgrass (napiergrass) that's higher quality
Definition
‘Mott’ dwarf elephantgrass-higher quality
Term
type of soil bahiagrass grows on
Definition
low fertility and sandy soils
Term
types of cells in fundic region of the glandular surface of the horse stomach
Definition
-parietal
-chief
Term
types of fescue that can be used to replace infected fescue
Definition
-Endophyte free fescue
-Novel endophyte infected fescue (MaxQ)
Term
types of mucousal surfaces in horse stomach
Definition
-Squamous
-Glandular
Term
types of sphincters in horse stomach
Definition
-Cardiac
-Pyloric
Term
uses of perennial ryegrass
Definition
Pasture or silage; often monocultures + N
Term
vertical transmission
Definition
transmitted from parent to offspring
Term
weight of forages that horses should consume
Definition
Minimum 1% of body weight
Term
what Esophageal Impaction (Choke) may do to horses
Definition
-May damage esophagus
-regurgitation of food from mouth and nostrils
Term
what affects the concentration of nutrients in the soil solution?
Definition
pH
Term
what bile is designed to do
Definition
emulsify fats
Term
what color are root nodules if they are actively fixing nitrogen?
Definition
pink
Term
what cyanide does that makes it deadly
Definition
Cyanide inhibits mitochondrial cytochrome oxidase and hence blocks electron transport. No aerobic respiration occurs.
Term
what decreased prolactin can cause in cattle
Definition
reproduction problems
Term
what endophyte in tall fescue produces that makes animals sick
Definition
alkaloid toxins
Term
what fat requires before it is deposited
Definition
Fat requires there to be a surplus of energy before it is deposited
Term
what forages containing prussic acid are good for and when
Definition
hay and silage OK after short period
Term
what grazing animals are designed to digest instead of corn
Definition
-fiber
-cellulose
-hemicellulose

not corn and such
Term
what gypsum does to the pH
Definition
it doesn’t change pH, but ties up Al
Term
what happens in the omasum?
Definition
water is reabsorbed from the digested fluid that passes through the reticulum
Term
what happens in the rumen?
Definition
Microbial fermentation of cellulose
Term
what happens to Excess Minerals in Diet?
Definition
Excess Minerals in Diet are Excreted Back Onto Pasture
Term
what happens to size of GI tract and liver as foal matures to mature horse?
Definition
Tract increases in size while liver remains the same
Term
what happens to the forage that goes to the reticulum?
Definition
undigested plant matter is compressed & then regurgitated
Term
what is between the abomasum and the small intestine?
Definition
pyloric sphincter
Term
what large liver does for neonatal foal
Definition
provides nutrients
Term
what makes bermudagrass ideal for hay?
Definition
Hollow stems and finer leaves make it ideal for hay
Term
what pearl millet looks like in Georgia
Definition
[image]
Term
what pearl millet looks like in most of the world
Definition
[image]
Term
what ruminal bacteria do to plant material in ruminant stomachs
Definition
they associate with cell walls of the plant tissues, attach via mucilagenous excretions, and excrete digestive enzymes that degrade the fiberous fractions of the cell wall.
Term
what selenium deficiency causes in muscle tissue
Definition
Selenium Deficiency Results in Necrosis of Muscle which Appears White
Term
what tends to be better for ensilage?
Definition
grass
Term
what they breed alfalfa for in Australia
Definition
drought resistance
Term
what they call alfalfa in Australia and NZ
Definition
Lucerne
Term
what they do where wheat is used as a forage
Definition
Where they do use this as a forage, they graze it, take the animals off of it, and let it go to seed.
Term
what to do if using conventional till to plant perennial ryegrass
Definition
till soil, use cultipacker prior to seeding
Term
what to do if using no till to plant perennial ryegrass
Definition
spray with herbicide prior to planting
Term
what to do if you plant tall fescue using conventional till
Definition
till soil, use cultipacker prior to seeding
Term
what to do if you plant tall fescue using no till
Definition
spray with herbicide prior to planting
Term
what to do with grazing of tall fescue late in summer
Definition
give it a rest, especially if it's endophyte free
Term
what vasoconstriction can cause in cattle
Definition
increased body temperature
Term
what vegetative propagules are genetically
Definition
vegetative propagules are true-to-type (clones)
Term
what winter growth may mean for Italian ryegrass
Definition
winter growth may mean better suited for late fall and winter use
Term
what you gotta factor in when trying to decide what species of alfalfa to grow
Definition
the entire system
Term
what you should do to overcome mineral deficiencies in livestock
Definition
Provide mineral supplements (salt blocks, mineral mixes) to overcome mineral deficiencies in livestock
Term
what you should fertilize pastures for
Definition
FERTILIZE pastures to promote forage growth
Term
what you should not fertilize pasture for
Definition
DON’T fertilize pasture to increase plant nutrients for livestock nutrition
Term
what you want the metabolizable energy (ME) of forages to be
Definition
at least 1.0 Mcal/lb
Term
what you want to add to dilute the toxic effect of tall fescue endophyte and why this might work
Definition
add legumes to dilute toxic effect, since animal is likely to ingest legumes before ingesting tall fescue
Term
whatb ADF means for digestibility
Definition
The lower the ADF, the more digestible
Term
when Italian ryegrass tends to flower
Definition
March through September
Term
when annual ryegrass will show symptoms of gray leafspot
Definition
within 72 hours after inoculation
Term
when bahiagrass is usually established
Definition
early spring
Term
when bermudagrass goes dormant
Definition
Kinda goes dormant in September
Term
when ceraeal rye matures
Definition
early spring
Term
when cereal rye peaks
Definition
Peak in fall and peak in spring
Term
when cool-season grasses produce well
Definition
spring, autumn, and to lesser extent winter
Term
when ergot in grain causes toxicity
Definition
only if wet conditions prevail and plants mature
Term
when fall establishment of annual ryegrass occurs
Definition
Fall establishment in early October (North) late October to mid-November (South)
Term
when gray leafspot grows best
Definition
at temperatures 21-25°C (70-77°F)
Term
when maximal energy/protein requirements occur
Definition
maximal energy/protein requirements occur the 2nd month after calving when cows reach peak lactation
Term
when minimal energy/protein requirements occur
Definition
Minimal energy and protein requirements occur at weaning when the need for nutrients dedicated to lactation ceases
Term
when nitrates build up
Definition
nitrates build up after drought, esp. on heavily fertilized pastures
Term
when orchardgrass matures
Definition
10-14 days earlier than tall fescue
Term
when prussic acid builds up
Definition
builds up after frost esp. in young tissue
Term
when secretion of bile ceases
Definition
secretion ceases after 48 hr fast
Term
when the quality of cereal rye starts to go down
Definition
when it starts flowering
Term
when the spring diseases (leaf rust, anthracnose) are not an issue for rye
Definition
when grazed
Term
when to apply N when growing summer annuals
Definition
Use split applications, at planting and again after grazed
Term
when to establish perennial ryegrass
Definition
Establish in fall (mid-September to mid-October)
Term
when to establish tall fescue
Definition
Fall (mid-September to mid-October)
Term
when to fertilize perennial fescue in spring
Definition
early-mid February
Term
when to fertilize tall fescue in spring
Definition
early-mid February
Term
when to give tall fescue a rest
Definition
late summer, especially if it's endophyte free
Term
when to graze a summer annual
Definition
Graze when plant reaches 15-18 inches in height
Term
when to graze cows on wheat
Definition
Feb and March
Term
when to graze warm season grasses and why
Definition
graze warm season grasses in summer to avoid temperature problems
Term
when to harvest wheat
Definition
spring
Term
when to not feed energy
Definition
when high CP supplement will improve performance
Term
when to plant annual ryegrass
Definition
when average temperatures fall below 21-25°C (70-77°F)
Term
when to plant wheat
Definition
fall
Term
when to seed cereal rye in Georgia depending on where in the state you are
Definition
Sept 1 – Mountains
Sept. 15 - Middle GA
Oct 15-Nov. 1 in S. Georgia
Term
when warm season annual grasses go dormant
Definition
virtually shuts down in September and October
Term
when you can start grazing warm season annual grasses
Definition
Generally, grazing can begin 40-60 days after planting
Term
when you have more flexibility with cereal rye
Definition
under warm weather
Term
when you manage for quality, you think about...
Definition
the age of the plant
Term
where bile comes from
Definition
liver
Term
where in the state of Georgia orchardgrass grows best
Definition
Grows better in Mountains of N. Georgia than elsewhere
Term
where most of the digestion occurs in horses
Definition
hindgut
Term
where most of the seed for tall fescue is produced
Definition
Oregon
Term
where perennial ryegrass is best
Definition
-coastal areas
-irrigated valleys
Term
where ryegrass originated
Definition
-Ryegrass originated in eastern Turkey, Middle East, Persia
-Migrated with human settlement throughout Europe
Term
where tall fescue is best
Definition
transition zone
Term
where the alkaloids in reed canarygrass come from
Definition
the plant itself
Term
where the non toxic endophytes come from
Definition
the Mediterranean Basin
Term
where the plant's energy goes when it goes to flower
Definition
seeds
Term
which body condition is this?
[image]
Definition
4
frame not as visible as covering
Term
which body condition is this?
[image]
Definition
5
severe underconditioning
Term
which body condition is this?
[image]
Definition
2
Term
which body condition is this?
[image]
Definition
5
Term
which body condition is this?
[image]
Definition
1
severe underconditioning
Term
which body condition is this?
[image]
Definition
3
frame and covering well balanced
Term
which body condition is this?
[image]
Definition
0
Term
which body condition is this?
[image]
Definition
1
Term
which body condition is this?
[image]
Definition
2
frame obvious
Term
which body condition is this?
[image]
Definition
3
Term
which body condition is this?
[image]
Definition
4
Term
which forage is more efficient at supplying nutrients? pasture or hay?
Definition
pasture
Term
which grass has a higher nutritive value? bahia or bermuda?
Definition
bermuda
Term
which grass has a higher yield? bahia or bermuda/stargrass
Definition
bermuda/stargrass
Term
which grass is more cold tolerant? bermuda or bahia?
Definition
bermuda
Term
which grasses have a higher energy density (Mcal/lb DM)? cool season or warm season?
Definition
cool season
Term
which has more epithelia? omasum or rumen?
Definition
rumen
Term
which is more potoperiod sensitive? cereal rye or annual ryegrass?
Definition
annual ryegrass
Term
which is more winter active? tall fescue or perennial ryegrass?
Definition
perennial ryegrass
Term
which part of the horse digestive system is number 1?
[image]
Definition
esophagus
Term
which part of the horse digestive system is number 2?
[image]
Definition
stomach
Term
which part of the horse digestive system is number 3?
[image]
Definition
small intestine
Term
which part of the horse digestive system is number 4?
[image]
Definition
cecum (on right side of body cavity)
Term
which part of the horse digestive system is number 5?
[image]
Definition
small colon
Term
which part of the horse digestive system is number 6?
[image]
Definition
large colon
Term
which part of the horse digestive system is number 7?
[image]
Definition
rectum
Term
which part of the ruminant digestive system is number 10?
[image]
Definition
pelvic bone
Term
which part of the ruminant digestive system is number 1?
[image]
Definition
mouth
Term
which part of the ruminant digestive system is number 2?
[image]
Definition
esophagus
Term
which part of the ruminant digestive system is number 3?
[image]
Definition
reticulum
Term
which part of the ruminant digestive system is number 4?
[image]
Definition
rumen
Term
which part of the ruminant digestive system is number 5?
[image]
Definition
omasum
Term
which part of the ruminant digestive system is number 6?
[image]
Definition
abomasum
Term
which part of the ruminant digestive system is number 7?
[image]
Definition
small intestine
Term
which part of the ruminant digestive system is number 8?
[image]
Definition
large intestine
Term
which part of the ruminant digestive system is number 9?
[image]
Definition
bladder
Term
which type of perennial ryegrass tends to have better grazing tolerance? diploid or tetraploid?
Definition
diploid
Term
which type of perennial ryegrass tends to have better palatability? diploid or tetraploid?
Definition
tetraploid
Term
which type of perennial ryegrass tends to have better yield? diploid or tetraploid?
Definition
tetraploid
Term
which type of perennial ryegrass tends to have greater dry matter intake? diploid or tetraploid?
Definition
tetraploid
Term
why California turned out to be a good place to grow alfalfa
Definition
because of its dry, not cold, mediterranean type climate, which is the type of climate it evolved in
Term
why Elephantgrass (Napiergrass) couldn't last more than 2 seasons
Definition
because it's very frost intolerant
Term
why Tifton 85 Hybrid Bermudagrass
is sterile
Definition
because it's a hybrid in which one species is tetraploid and the other’s hexaploid, leading to a pentaploid hybrid, which is sterile
Term
why bahiagrass is usually established in early spring
Definition
to decrease weed competition
Term
why bahiagrass tolerates heavy grazing and clipping better than bermudagrass
Definition
because bahiagrass has higher rhizome density
Term
why be mindful of temp when planting warm season grasses?
Definition
Be mindful of temperature because high temp is suitable for warm season grasses.
Term
why consumed forages first go to the reticulum after consumption
Definition
because the animal doesn’t have time to chew it
Term
why dallisgrass has a high grazing tolerance
Definition
because it has a high basal leaf area
Term
why elephantgrass (napiergrass) is hard to manage
Definition
grows too fast
Term
why forage that goes to the stomach needs to be rechewed
Definition
so that fermentation can be more efficient
Term
why forages are necessary for feeding horses
Definition
-Maintain gut health
-Decreases vices
Term
why forages with less energy and more fiber get eaten less
Definition
because the less energy, the more fiber, which means more filling
Term
why grazing management is very important for alfalfa
Definition
because it is very important for alfalfa if you want to maintain the stand
Term
why have baby during down period
Definition
because it relies on its mom for about 90 days
Term
why horses pursue more roughage as they get older
Definition
because as the animal grows, the hindgut increases in size
Term
why infected tall fescue plants yield infected seed
Definition
because tall fescue endophyte is transmitted thru seed
Term
why is orchardgrass a good companion with aggressive legumes?
Definition
Rapid re-growth makes it good companion with aggressive legumes
Term
why it can be hard to maintain companion legumes with bahiagrass
Definition
I think because of such dense stolons and rhizomes and such
Term
why it is better to wait to establish annual ryegrass rather than try and get an early start with seeding
Definition
because gray leafspot will seriously hamper the establishment of annual ryegrass
Term
why minerals are important for livestock
Definition
Essential for basic physiological processes
Term
why old types of bahiagrass are very unpalatable
Definition
because they got lots of silica
Term
why pH is important to plants
Definition
nutrient availability
Term
why parturition is fixed by humans
Definition
so that the animals can have the most amount of forage at the right time
Term
why pearl millet is short in Georgia
Definition
because of dwarf gene, which diverts energy from vegetative parts to grain production
Term
why people like to grow wheat as a double crop
Definition
because wheat is very high in protein
Term
why protein is important for growth and cell division
Definition
because during cell division, additional amino acids are needed
Term
why size of small intestine increases with age
Definition
because of the horse eating more
Term
why sorghum has Dhurrin (prussic acid)
Definition
uses it to protect itself
Term
why tall fescue is grazing tolerant
Definition
because it has lots of leaf area close to soil surface
Term
why the amount of fat cover on cows is a good indicator of their energy status
Definition
because Fat requires there to be a surplus of energy before it is deposited
Term
why the feed or amount of feed given to a horse should be changed gradually over 1 week
Definition
Avoids digestive upsets
Term
why the forage quality of bahiagrass is usually lower than other warm season grasses
Definition
because it produces a lot of seed heads
Term
why the liquid and gas are split in the ruminant stomach
Definition
to prevent bloating
Term
why there's a lot of wheat out there
Definition
-Current price > $10.00/bu
-Excellent rotation for row crops
-Plant in fall, harvest in spring
Term
why there's more tall fescue endophyte when you apply more N
Definition
because of more intercellular space, which means more room for the endophyte
Term
why use wheat as a forage?
Definition
-Can predict stage of development easily
-Very high quality as long as in vegetative stage of development.
-Can graze plants with little or no effect on grain yield
-Cheap gain on animals even though it is short duration grazing
Term
why you don't graze bahiagrass in establishment year
Definition
weak seedlings
Term
why you don't want tall fescue to go to seed
Definition
because the seed heads contain the most tall fescue endophyte toxin
Term
why you don't want wheat to go past the joint stage when using it as a forage
Definition
because the joint stage is when it starts to go to seed
Term
why you gotta leave some green material when you clip annuals
Definition
so they can photosynthesize and grow back
Term
why you gotta rotate the grazing with alfalfa
Definition
because alfalfa is sensitive to grazing
Term
will low energy forage meet the needs of a lactating cow?
Definition
no
Term
[image]
Definition
alfalfa crown
Term
[image]
Definition
Aerial photograph showing landuse conversion from row crop to MiGD farms.
Term
“Tifton 9” bahiagrass was selected to...
Definition
increase above-ground growth.
Term
This may play a role in diarrhea often seen with ruminal acidosis.
Definition
Large-intestine damage and increased organic acids in the gut lumen
Term
Bubbling is a result of...
Definition
post-defication fermentation.
Supporting users have an ad free experience!