Don't do it if the bull's way too heavy for the heifer and you can't get semen from him sufficiently to AI her. Most herd bulls are mature beasts, but if he's a yearling or a small bull, then go right ahead, put her in with him.
Herd bull, stud bull, etc.
When the designated breeding season is over. If you've had the bull in with the cows for 45 to 80 days, at the end of the 80 day season its time to pull him from the herd.
No. Only a heifer calf twinned to a bull calf will be infertile, not twin heifer calves.
This is the wrong question to ask, actually. You should be more concerned about the age that you should put a heifer in with a bull to be bred, not when should a heifer be taken away from a bull. See the related question below, but generally, a heifer should be at least 15 months of age to be bred and be able to grow a calf in her. Now to really answer your question, the bull should be removed after a couple months of being in with the heifer[s].
A heifer becomes a cow after she has had her first calf. In other words, you can expect 0 (zero) calves from a heifer over breeding life. When she is a cow, she may have from 1 to 18 calves in her lifetime.
All are just as good to eat as the other. Steers are more popular to be eaten because they're not needed for the breeding herd.
Herd bull, stud bull, etc.
No. What a heifer or any female eats as no effect on her reproductive cycling or her receptivity to the bull. A heifer that is bred is a heifer that is not nor will not come into heat for several months.
Like this:"The farmer had a prized heifer in the cattle shed.""The heifer was bred by the herd bull yesterday.""The cow gave birth to a heifer calf!""Those blasted heifers got out again!!"
No, they produce a calf. That calf, if born a bull calf, must be castrated by humans (a steer) then trained (by humans) to pull a cart, wagon, etc. An ox is any kind of cattle that has been trained to work.
When the designated breeding season is over. If you've had the bull in with the cows for 45 to 80 days, at the end of the 80 day season its time to pull him from the herd.
Bull calves are altered or castrated, at which time they are called steers. Steering a bull prevents fighting, accidental breeding with cows and heifer calves, and allows for easier management.
There is not enough information to answer this question. When after what do you return the bull to the herd? Breeding season? Calving season? Or something else entirely?? Please be more specific with this type of question so it can be properly answered!
Illness, other bulls, injuries, humans, and the fact that a bull is no longer productive for a breeding herd.
No. A cow or heifer in heat will stay with the herd, or rather, the herd will stick with her.
It depends on whether the bull has been with the herd for a long period of time, or if he's been separated for a time and is put in with the cow herd at the start of breeding season, which usually should have began a month earlier than 4 months. Usually, though, the calves are not in danger of getting hurt by the herd bull.
You could call it a heifer, or a twin heifer if the sibling is also a heifer, or a freemartin if the heifer's sib is a bull calf.