beef repro Flashcards
to increase reproductive efficiency, we can do four things. what thing wont matter if we dont also do the other steps
reproductive technologies wont fix poor management, nutrition, and selection pressure
number one factor affecting management?
the manager
how should decisions be made by the manager
using data. birth weight, BCS at calving, pregnancy rate, calving rate, weaning rates
to keep a cow in the breeding stock what are core things she needs to do
calf every 365 days, without assistance, heifers must calve by 24 months, must not be crazy
why do we want to breed early
they gain two pounds a day as calves, a 40d difference is 80lbs
how early can you diagnose pregnancy if palpating? if US?
30d and 26d
example of transgenic technologies
selecting for the slick gene and adding it into genomes so they can perform better in hot weather
3 steps to a BSE
PE, repro exam, semen quality
factors affecting TAI pregnancy rates that cant be fixed with protocol changes
BCS and Days post partum. both management issues that no TAI protocol will fix
what are good TAI rates
50%
