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How young can a Holstein bull calf breed thought banded but not now have young heifers with him not old enough to be breed?
Wiki User
∙ 12y ago
A Holstein bull calf reaches puberty between 9 and 12 months of age, at which is the time that he starts showing interest in cows and heifers. If he's younger than that, then there's no need to worry. And, if the heifers have not reached puberty themselves (which occurs at around 12 months of age), then they will not get bred by this young Holstein bull.
So no need to worry. However, you will have to pull him out before you suspect the heifers will start to show their first signs of estrus, if you intend to keep him in with the girls for a fair period of time. Oh and make sure he DOES get banded this time. It's best to band him before he reaches puberty. Most calves are banded at birth, or between 2 and 6 months of age.
Wiki User
∙ 12y ago
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What is puberty in cattle?
Puberty in cattle is the same for humans: it is the time when a heifer or bull begins to become more receptive to the possibility of conceiving offspring, due to the fact their reproductive organs start reaching maturity and their secondary sexual characteristics begin to develop. Sexual maturity is when the reproductive organs reach maturity enough that a heifer is old enough to conceive or a bull is old enough to start breeding heifers and cows. Age of puberty in cattle is highly dependent on the breed and how selective for fertility a producer is for his/her cow-calf herd. Heifers in herds that have high fertility have been known to start puberty as early as 4 or 5 months of age. Other herds or breeds may not see heifers beginning puberty until they're between 9 to 12 months of age. Brahman and zebu cattle may have heifers beginning puberty as late as 15 to 20 months of age. The latter breeds often don't see heifers being bred to calve until they're around 24 or 25 months old. The former often have a rule of thumb with having heifers not to be bred until they're 15 months of age. However, some breeders of the more highly fertile herds may find that they have no issues with breeding heifers a few months younger. Of course this is all down to the producer's discretion and management goals.
My heifer had twins is that common?
Nope. It's more common in cows to have twins (on occasion) than in heifers. Often heifers do not have enough milk to suckle one big calf, let alone twins, so watch how the calves are behaving when they finish suckling her to see if they're still hungry. If they are still hungry, you may have to bottle feed them in addition to the heifer suckling them.
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What is puberty in cattle?
Puberty in cattle is the same for humans: it is the time when a heifer or bull begins to become more receptive to the possibility of conceiving offspring, due to the fact their reproductive organs start reaching maturity and their secondary sexual characteristics begin to develop. Sexual maturity is when the reproductive organs reach maturity enough that a heifer is old enough to conceive or a bull is old enough to start breeding heifers and cows. Age of puberty in cattle is highly dependent on the breed and how selective for fertility a producer is for his/her cow-calf herd. Heifers in herds that have high fertility have been known to start puberty as early as 4 or 5 months of age. Other herds or breeds may not see heifers beginning puberty until they're between 9 to 12 months of age. Brahman and zebu cattle may have heifers beginning puberty as late as 15 to 20 months of age. The latter breeds often don't see heifers being bred to calve until they're around 24 or 25 months old. The former often have a rule of thumb with having heifers not to be bred until they're 15 months of age. However, some breeders of the more highly fertile herds may find that they have no issues with breeding heifers a few months younger. Of course this is all down to the producer's discretion and management goals.
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My heifer had twins is that common?
Nope. It's more common in cows to have twins (on occasion) than in heifers. Often heifers do not have enough milk to suckle one big calf, let alone twins, so watch how the calves are behaving when they finish suckling her to see if they're still hungry. If they are still hungry, you may have to bottle feed them in addition to the heifer suckling them.
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