What is the expected birth weight?
2/3 mature body weight.
Mature weight of bulls/steers?
Mature weight of cows?
How long is the productive life of cattle?
about 8 years.
How long is gestation?
How long is a cow's estrous cycle?
What is Estrus?
The time during which the female will accept the male for copulation.
How long is a cow in estrus?
What is the normal body temperature of cattle?
What is the weaning age?
Age at first breeding?
What age does a heifer have her first calf?
How long is the breeding season?
What are important traits in a beef cattle breeding program?
reproduction, Average Daily Gain, milk production, feed efficiency, conformation and carcass traits.
What are Expected Progeny Differences (EPD)?
An estimate of the genetic value of an animal in passing genetic traits to its offspring.
How is EPD measured?
measured as the degree of difference between the progeny of the bull used vs an average bull for a particular trait.
What is Embryo Transfer?
taking eggs from a donor cow and transfering them to other cows.
What are the steps involved in Embryo Transfer?
1. Give hormones to donor cow 2. get recipient cows in sync with donor cow 3. donor cow bred by AI 4. flush donor cows uterus after 7 days 5. transfer embryos to recipient cows.
What is Dystocia?
Any difficult birth.
What are some causes of Dystocia?
fetal-pelvic disproportion, bad positioning, maternal problems.
What is the normal position of a calf during birthing process?
What is the breech position?
Calf approaches cervix tail first.
What are three other bad positions of calves in the uterus?
Flexing of head and neck, one or both fore legs are not in front of the calf, calf is upside down.