lecture 9 - cow FPT

Question 1

1. dairy or beef calves get FPT more?

Answer 1

1. dairy

Question 2

(Direct measurement of IgG in calves)

1. what level is considered FPT?
2. RID vs ELISA?

Answer 2

1. <1000 mg/dL
2. ELISA is better (quick and cheap)

RID is $ and impractical

Question 3

(indirect assessment of TPP is useful - UNLIKE HORSE)

1. correlates well with IgG at what level?
2. what value adequate?
3. for FPT?

Answer 3

1. herd level
2. > 5.5 g/dL
3. < 5.0 g/dL

Question 4

(FPT tx)

1. when to give colostrum?
2. when to give plasma?

but?

Answer 4

1. <12 hours
2. >24 hrs

cost prohibitive (just try to prevent infection)

Question 5

(colostrum managment)

1. each calf should get how much colostrum within 6 hours of birth?

what quality?

2. how much given to dairy calves?

to beef calves?

why the diff?

Answer 5

1. 100g of IgG

> 50 g/L IgG

2. 4L

2L

beef make less milk (and is more concentrated)

Question 6

1. which has more IgG - supplements or replacers?

Answer 6

1. replacers (still need to give two of these though)