Rumen GI Part 2 Flashcards
What on the microbe surfaces generate peptides?
Proteases
Intracellularly, ________ are hydrolyzed to amino acids
Peptides
What contributes to synthesis of microbial protein, VFA and ammonia/urea?
Amino acids
Amino acids are synthesized intracellularly from _____ and _____
NH3
VFA
The _______ structure of amino acids can directly be used fro VFA synthesis
Carbon
The ruminant depends on microbial protein to meet its own needs:
1) microbes washed out of rumen —> microbial protein reaching the abomasum and small intestine
2) protein can be produced in rumen from protein and _____ ________ sources such as ammonia, nitrates, and urea
Non-protein
Urea which is the nitrogen waste product of protein catabolism is synthesized in the liver comes from 2 sources?
1-
2-
1- urea coming from deamination of endogenous amino acids
2- nitrogen absorbed as ammonia from the rumen
Where is urea excreted into in ruminants?
Rumen
Under low dietary ________ conditions, ruminants are efficient at conserving nitrogen
Protein
Microorganisms price necessary enzymes for _____ digestion, such as lipases and phospholipases
Lipid
What are supplemented in dairy cows rations to increase ration energy density?
Fats
What is the major lipid found in cereal grains, oilseeds, animal fats, and byproduct feeds, also found in milk fat?
Triglycerides
What is the major lipid found in forages?
Glycolipids
What is a minor component of most feeds, from the cell membrane of all animals cells, and the surface of milk fat globules? Important in fat digestion in small intestine of cows?
Phospholipids
What in a minor component of dairy feeds, but major component of certain fat supplements?
Free fatty acids
