nutrition in pregnancy

Question 1

How much energy is required to make 1L of milk?

Answer 1

5 mJ

Question 2

What is the maintenance requirement of a 700kg cow?

Answer 2

72 mJ / day

Question 3

How much mJ extra is needed for high activity e.g. bulling?

Answer 3

19 mJ/day

Question 4

How much extra energy is needed for pregnancy at full term?

Answer 4

36 mJ/day

Question 5

Loss of 1kg per day equates to how many mJ?

Answer 5

35

Question 6

What is the ME of grass?

Answer 6

10-11mJ/kg DM

Question 7

How long is a ewe gestation period (weeks and days?)

Answer 7

144 days

30 weeks

Question 8

What effect do kale and rape have on sheep fertility?

Answer 8

decreased

Question 9

From what stage can you PD sheep?

Answer 9

from 40 days.

Often done around 11-15 weeks to determine number of fetuses

Question 10

What signs might you expect to be seen with twin lamb/pregnancy toxaemia?

Answer 10

Recumbency

Neuro

Question 11

What is the treatment for twin lamb?

Answer 11

Reduce energy demand - induce abortion
i/v glucose
propylene glycol orally
oral electrolyte carbohydrate source

Question 12

What is the ideal BCS for cows to calve down at?

Answer 12

3

Question 13

Increase in free fatty acids around calving is normal or abnormal?

Answer 13

normal, as is increase in fat level in the liver

Question 14

Fatty liver syndrome is caused by

Answer 14

excessive fat deposition in the liver

Question 15

Fatty liver can cause.. 6 things

Answer 15

RFM, immunosuppression, endometritis, reduced fertility, ketosis, mastitis

Question 16

When should you introduce the transition diet?

Answer 16

About 2 weeks before calving, keep similar in early lactation