Lecture 41-42- Fermentative Digestion

Question 1

What plant component is indigestible and accumulates more in older plants

Answer 1

Lignin

Question 2

What are the main fermantative end products

Answer 2

VFAs

Question 3

What is ammonia converted into in the liver

Answer 3

urea

Question 4

Where can ruminants secrete urea in addition to urine

Answer 4

Saliva

Question 5

What are bypass proteins

Answer 5

Proteins not fermented in the rumen that are digested like nonruminants

Question 6

What osmolarity is necessary for rumen fermentation

Answer 6

300

Question 7

What are the layers of ingesta

Answer 7

Gas cap
Raft
Rumen liquors

Question 8

How many rumen contractions should be audible every 2 minutes

Answer 8

3

Question 9

How are acidic rumen contents buffered during regurgitation

Answer 9

saliva

Question 10

What percent of liquid should leave the rumen every hour (dilution rate)

Answer 10

5-30%

Question 11

Is the fluid flow rate higher in grain diets or forage diets

Answer 11

FOrage- more regurgitation and saliva production

Question 12

Can hindgut fermenters absorb microbe synthesized proteins

Answer 12

No

Question 13

What is a haustration

Answer 13

Colon outpouchings that increase absorption

Question 14

In hindgut fermenters what produces most of the bicarb

Answer 14

Ileum