CAL: Underperformance in Dairy Heifers Flashcards Preview

PMVPH 4th Year > CAL: Underperformance in Dairy Heifers > Flashcards

Flashcards in CAL: Underperformance in Dairy Heifers Deck (10):
1

Aim for age at first calving? Problems with calving sooner or later?

- 24 months
>24 older = wasted time when not being productive
v productivity in 1st and subsequent lactations, ^ risk dystocia and metabolic problems

2

Optimum weight to serve heifers

400kg

3

Min space allowance per

1.5m2 legally
- recommendation

4

Which floor space values should be used to calculate stocking density?

Indoor - this is where calves will huddle if cold etc

5

Is under stocking good?

No can also be a problem -> lack of heat and lack of ventilation

6

How many cubicles would be left free at any time?

10%

7

What serum IgG is considered adequate colostrum intake?

>1000mg/dl

8

What serum TP ia considered adequate colostrum intake?

>5.2g/dl in a healthy calf
>5.5g/dl in an ill calf (dehydration will falsely raise TP values so low values may appear normal)

9

When should serum TP values be collected?

first week of life

10

At a herd level, what prevalence of FPT is considered a problem?

30% herd problem