Rumen diseases CR

Question 1

What are some common reasons for a drop in milk production in a post-partum cow?

Answer 1

Fe/Se/Cu/Co deficiency
Hypocalcaemia (milk fever)
Bacterial imbalance
Rumen acidosis
LDA
Mineral deficiencies
Dehydration

Question 2

Describe the normal position of the bovine GIT and in-contact structures

Answer 2

Rumen on LHS of abdomen
abomasum on base of abdomen slightly to the right
Spleen attached to rumen dorsally

Question 3

What occurs after birth that make translocation of the abomasum possible?

Answer 3

after birth there is lots of space for abomasum to move

Question 4

What factors can influence gaseous distension of the abomasum in ruminants??

Answer 4

Ingestion of high concentrate, low roughage diets reduced emptying of abomasum
Sudden change in diet can stress the abomasum
More volatile acids -> hypomotility of abomasum -> more gas -> blocks entrance and exit

Question 5

What causes LDA and what is the main clinical sign?

Answer 5

gas trapped in abomasum
‘tinkle’ sound when tap LHS