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Exam 3 Material
Nutrition to DHI records
109
Agriculture
Undergraduate 2
11/18/2014

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Term
NDF
Definition
Neutral Detergent Fiber
Term
ADF
Definition
Acid Detergent Fiber
Term
Ways to measure particle size
Definition
1. University of Wisconsin Oscillating Screen
2. Penn State Shaker Box
Term
Ways to measure moisture determinations
Definition
1. Microwave Oven
2. Koster Tester
3. Vortex Dryer
Term
Different Types of Manure
Definition
1. Splash and Splatter
2. Loose
3. Average or Normal
4. Firm
5. Thud or Crash`
Term
TMR
Definition
Total Mixed Ration
Term
DDGs
Definition
Dried Distillers Grains
Protein; byproduct of ethanol
Term
Wet Gluten
Definition
Byproduct of high fructose corn syrup; high in starch but also contains protein and fiber
Term
DM
Definition
Dry Matter
Term
Rumen
Definition
the compartment of a ruminants stomach that ferments forages
Term
Two categories of microbes
Definition
1. Fast acting, easy nutrient digesters
2. Slow-paced fiber digesters
Term
Refusals
Definition
the feed that the cow does not desire to eat
Term
Estrous Cycle
Definition
a series of predictable reproductive events
Term
Estrus
Definition
the period of sexual receptivity in the female
Term
Polyestrous
Definition
many cycles occur throughout the year
Term
Spontaneous Ovulator
Definition
the female will ovulate every cycle whether a male is present or not
Term
Cyclicity/Cyclic
Definition
having repeated estrous cycles
Term
Anestrous/Anestrus
Definition
a condition in a female when she does not display estrus, when cyclicity stops
Term
Follicular Phase
Definition
period from the regression of the CL to ovulation; follicles present; estrogen dominant
Term
Luteal Phase
Definition
period from ovulation until CL regression; Corpus luteum present; progesterone dominant
Term
GnRH
Definition
Gonadotropin Releasing Hormone
Term
Gonadotropin Releasing Hormone
Definition
a hormone secreted by the hypothalamus that stimulates the anterior pituitary to secrete LH and FSH hormones that act on specific ovarian structures
Term
FSH
Definition
Follicle Stimulating Hormone
Term
Follicle Stimulating Hormone
Definition
a hormone secreted by the anterior pituitary that promotes follicular development and acts with LH to produce estrogen
Term
Lutenizing Hormone
Definition
a hormone secreted by the anterior pituitary that acts with FSH to produce estrogen, is required for final stages of follicular development and maturation, and triggers ovulation
Term
LH
Definition
Lutenizing Hormone
Term
Estrogen
Definition
a hormone produced by the follicles that signals sexual behavior characteristics in females
Term
Progesterone
Definition
a hormone produced by the CL and placenta during pregnancy that prevents estrus and ovulation and maintains pregnancy
Term
Prostaglandin F2alpha
Definition
a hormone produced by the uterus that kills the CL/induces luteolysis of CL
Term
PGF2alpha
Definition
Prostaglandin F2alpha
Term
Primary sign of heat detection
Definition
cow stands to be mounted
Term
Gestation/Pregnancy
Definition
the period in which a female is pregnant between conception and parturition
Term
Gestation Period
Definition
number of days that a cow is pregnant
Term
Average gestation length
Definition
279 days
Term
ET
Definition
Embryo Transfer
Term
IVF
Definition
In Vitro Fertilization
Term
OVU
Definition
Ovum Pick-Up
Term
VWP
Definition
Voluntary Waiting Period
Term
CR
Definition
Conception Rate
Term
PR
Definition
Pregnancy Rate
Term
Voluntary Waiting Period
Definition
fixed period of time (in days) following calving before attempting to breed a cow
- usu. between 50 to 60 days
Term
Average Days to First Service
Definition
the number of days between calving and when the cow is serviced again
Term
Days Open
Definition
number of days between calving and conception
Term
Calving Interval
Definition
period from one calving until the next
Term
Conception Rate
Definition
total number of pregnant cows/total number of services (breedings)
Term
Services per Conception
Definition
Total number of services (breedings)/Total number of pregnant cows
Term
Heat Detection Rate (Service Rate)
Definition
percentage of eligible cows (must be past the VWP) detected in heat during a 21 day period
Term
Pregnancy Rate
Definition
the proportion of eligible cows that become pregnant each 21 day cycle total # of cows pregnant/total # of opportunities to get cows pregnant -or- conception rate x heat detection rate
Term
Transition Period
Definition
interval from 3 weeks prepartum to 3 weeks postpartum
Term
Milk Fever/Parturient Paresis/Hypocalcemia
Definition
disruption of mineral balance (calcium)
Term
Ketosis/Acetonemia
Definition
accumulation of "ketones" in the bood
Term
Displaced Abomasum
Definition
occurs when the abomasum is no longer in the normal position and is displaced to the left side
Term
DA
Definition
Displaced Abomasum
Term
Acidosis/SARA
Definition
a reduction in rumen pH (5.0 or lower) caused by feeding too much readily fermentable carbohydrates relative to the amount of effective fiber
Term
SARA
Definition
Sub Acute Rumen Acidosis
Term
Hardware Disease
Definition
metal accumulation in reticulum
Term
Bloat
Definition
Frothy gas accumulation in the rumen when it is difficult or impossible for the animal to eructate
Term
Fatty Liver
Definition
a disease common with over conditioned dry cows not eating after calving
Term
Mastitis
Definition
inflammation of the mammary gland
Term
Dystocia
Definition
difficult birth
Term
Retained Placenta
Definition
failure to expel placenta within 12 hours of calving
Term
Metritis
Definition
inflammation of the uterus
Term
Udder Edema
Definition
accumulation of fluid in the udder
Term
RP
Definition
Retained Placenta
Term
4 categories of Estrus Detection Aids
Definition
1. Records
2. Rump Indicators
3. Electronic Aids
4. Teaser Animals
Term
Dairy Production Systems
Definition
1. Confinement
2. Traditional Grazing
3. Rotational Grazing
4. Organic
Term
Paddock
Definition
small section of pasture that animals graze and rotate every 12 hours
Term
Grazing Season
Definition
the period of time when pasture is available for grazing, due to natural precipitation or irrigation
Term
Fluid Milk
Definition
beverages and some perishable manufactured products
Term
Manufacturing Milk
Definition
made into storable dairy products (butter, powder, and cheese)
Term
Grade A Milk
Definition
eligible for use as beverage (fluid) milk although most converted to manufactured dairy products
Term
Grade B Milk
Definition
can only be used for manufactured dairy products
Term
Production
Definition
conditions in and around milking facility
Term
Quality
Definition
somatic cell count and bacteria count
Term
Class I Milk
Definition
used for beverages (fluid) products
Term
Class II Milk
Definition
used for "soft" manufactured dairy products
- ice cream, cottage cheese, yogurt, sour cream, half & half, cream cheese
Term
Class III Milk
Definition
used to manufacture "hard" cheese
Term
Class IV Milk
Definition
used to make butter and dry milk products
Term
The Babcock Test
Definition
measured the fat content of milk, directly established the amount of cream or butter that could be produced from milk and predicted cheese yields quite accurately
Term
Make Allowance
Definition
cost processors incur to manufacture a particular dairy product and is part of the formula for establishing minimum milk prices
Term
NASS
Definition
National Ag Statistical Service
Term
Mailbox Milk Price
Definition
reflects the actual price dairy operators receive for their milk
Term
Lactose
Definition
essentially the sole carbohydrate in milk
Term
Homogenization
Definition
mechanical disruption of fat globules into smaller sizes to prevent cream separation
Term
Fat content of whole milk
Definition
greater than or equal to 3.25
Term
Sugar content of whole milk
Definition
5%
Term
Purpose of Pasteurization
Definition
to render milk safe (kills pathogens) but also extends shelf life
Term
Percentage of food and water-borne illness that are due to dairy products
Definition
less than 1%
Term
How many pounds of milk to make 1 lb of Cheddar cheese
Definition
10 pounds
Term
NAAB
Definition
National Association of Animal Breeders
Term
ME
Definition
Mature Equivalent
Term
Herdmates
Definition
other cows of the same breed and in the same herd that calved near the same time
Term
RHA
Definition
Rolling Herd Average
Term
Rolling Herd Average
Definition
average production for all cows (both milking and dry) in the herd for the most recent 365 days
Term
NOP
Definition
National Organic Program
Term
Buffer Zones
Definition
strip of land between conventional and organic producers to limit cross-contamination
Term
SCC
Definition
Somatic Cell Count
Term
PPD
Definition
Producer Price Differential
Term
cwt
Definition
centaweight
Term
Clarification
Definition
removes solid impurities
Term
Separation
Definition
separates the cream from the skim milk
Term
Standardization
Definition
adjusts fat content to a desired level
Term
UHT
Definition
Ultra High Temperature
Term
9 essential nutrients in milk
Definition
1. Calcium 2. Potassium 3. Phosphorous 4. Vitamin A 5. Vitamin D 6. Vitamin B12 7. Riboflavin 8. Niacin 9. Protein
Term
MFFB
Definition
Moisture on a fat free basis
Term
FDB
Definition
Fat on a dry basis
Term
DHIA
Definition
Dairy Herd Information Association
Term
SCS
Definition
Somatic Cell Linear Score
Term
LTD
Definition
Lacation-to-date
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