Digestion in the Rumen

Question 1

What is mastication?

Answer 1

lateral jaw movement, shredding

Question 2

How much saliva do cattle produce?

Answer 2

150 litres

Question 3

How much saliva do sheep produce?

Answer 3

10 litres

Question 4

What is proportional to chewing time?

Answer 4

Quantity of saliva produced

Question 5

What is absent from ruminant saliva?

Answer 5

Amylase

Question 6

What anareobic microorganisms does the rumen contain?

Answer 6

protozoa, bacteria and fungi

Question 7

What percentage of body weight does the rumen take up?

Answer 7

20%

Question 8

What is the rumens general anatomy?

Answer 8

Covered with papillae, stratified squamous epithelium

Question 9

What does the rumen have?

Answer 9

Reticular groove - channels milk into the abomasum

Question 10

What are the different types of bacteria in the rumen?

Answer 10

Cellulolytic, Proteolytic, Amylolytic

Question 11

What does cellulolytic bacteria do?

Answer 11

Ferments fibre

Question 12

What does proteolytic bacteria do?

Answer 12

Hydrolyses proteins

Question 13

What does amylolytic bacteria do?

Answer 13

Ferments starch

Question 14

What are the two types of protozoa?

Answer 14

Holotrichs, Entodinomorphs

Question 15

What do holotrichs do?

Answer 15

Utilises soluble sugars

Question 16

What do entodinomorphs do?

Answer 16

Ingest bacteria

Question 17

Fungi have extensive what?

Answer 17

Cellulolytic and Proteolytic activity

Question 18

What are the 5 rumen conditions?

Answer 18

Constant pH, anaerobic conditions, constant temp, constant nutrients, removal of end products