beef repro

Question 1

to increase reproductive efficiency, we can do four things. what thing wont matter if we dont also do the other steps

Answer 1

reproductive technologies wont fix poor management, nutrition, and selection pressure

Question 2

number one factor affecting management?

Answer 2

the manager

Question 3

how should decisions be made by the manager

Answer 3

using data. birth weight, BCS at calving, pregnancy rate, calving rate, weaning rates

Question 4

to keep a cow in the breeding stock what are core things she needs to do

Answer 4

calf every 365 days, without assistance, heifers must calve by 24 months, must not be crazy

Question 5

why do we want to breed early

Answer 5

they gain two pounds a day as calves, a 40d difference is 80lbs

Question 6

how early can you diagnose pregnancy if palpating? if US?

Answer 6

30d and 26d

Question 7

example of transgenic technologies

Answer 7

selecting for the slick gene and adding it into genomes so they can perform better in hot weather

Question 8

3 steps to a BSE

Answer 8

PE, repro exam, semen quality

Question 9

factors affecting TAI pregnancy rates that cant be fixed with protocol changes

Answer 9

BCS and Days post partum. both management issues that no TAI protocol will fix

Question 10

what are good TAI rates

Answer 10

50%