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Ruminal system
part of test 2
48
Agriculture
Undergraduate 4
03/05/2017

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Term
depiction of the ruminant digestive tract
Definition
[image]
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 part of the ruminant digestive system is number 10?
[image]
Definition
pelvic bone
Term
depictions of the chambered stomach of ruminants
Definition
[image]
Term
Abomasum called glandular stomach because...
Definition
it’s similar to our stomach
Term
why the liquid and gas are split in the ruminant stomach
Definition
to prevent bloating
Term
Each compartment of the ruminant stomach has a different...
Definition
stomach lining
Term
The omasum is kinda like a...
Definition
binder
Term
the first part of the ruminant stomach forage goes to after consumption
Definition
reticulum
Term
why consumed forages first go to the reticulum after consumption
Definition
because the animal doesn’t have time to chew it
Term
why forage that goes to the stomach needs to be rechewed
Definition
so that fermentation can be more efficient
Term
what happens to the forage that goes to the reticulum?
Definition
undigested plant matter is compressed & then regurgitated
Term
what happens in the rumen?
Definition
Microbial fermentation of cellulose
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
fucntion of the rumen
Definition
basically a fermentation vat
Term
Ruminal Tissues are ______ epithelia
Definition
squamous
Term
Epithelium in ruminants possess multiple layers, referred to then as...
Definition
stratified squamous epithelium
Term
functions of the cells in the ruminal tissues of ruminants
Definition
Cells perform several functions including nutrient exchange and protection
Term
what happens in the omasum?
Definition
water is reabsorbed from the digested fluid that passes through the reticulum
Term
which has more epithelia? omasum or rumen?
Definition
rumen
Term
function of abomasum
Definition
releases pepsin & acids for typical protein digestion
Term
what is between the abomasum and the small intestine?
Definition
pyloric sphincter
Term
function of the pyloric sphincter
Definition
controls how much is going into the small intestine
Term
function of mucousal tissue of abomasum
Definition
secretes enzymes to assist in lipid and protein degradation
Term
Microbes that pass from the rumen will be digested in the...
Definition
abomasum
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
something present in the digesta taken from sheep
Definition
fibers
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
Bacteria do this to break down the cell wall of plant material
Definition
secrete enzymes, which help break down the cell wall
Term
The composition of the cell wall is important for...
Definition
the breakdown of the cell wall
Term
this is important for the breakdown of the cell wall
Definition
the composition of the cell wall
Term
Microbes facilitate...
Definition
the conversion of forages into energy
Term
Bacteria secrete enzymes that help...
Definition
break down cell walls and release cell contents
Term
Grass better for ruminants because...
Definition
that’s what they’re naturally designed for
Term
two chemicals that are higher on forage based diet
Definition
Acetate and butyrate
Term
close ups of the lining of the parts of the ruminant stomach
Definition
[image]
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
Diarrhea and Bubbling
Definition
Large-intestine damage and increased organic acids in the gut lumen may play a role in diarrhea often seen with ruminal acidosis. Bubbling is a result of post-defication fermentation
Term
something that may cause mucin casts and diarrhea and bubbling
Definition
grain feed
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.
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