A bull will often reach puberty by the time he's around 12 months of age (some a little sooner, if the herd's a good fertile herd), and by this time, as a Yearling Bull, he is ready to be used on heifers or sold to another producer's farm or ranch to be used on the heifers and cows there.
Some bull calves can show libido when they reach 6 to 8 months of age. Some won't show it until a month or so later. Most bulls should be showing libido by the time they are 12 months old.
However, all this depends on the breed and each individual bull. Some breeds that are later maturing (typically Continentals), like Charolais, Simmental, Limousin or Salers, won't start showing puberty until they're around 12 to 16 months of age. Other breeds that are more early maturing (typically British-type breeds) like Angus, Hereford, Shorthorn, Jersey, or Red Poll will start showing puberty as early as 6 to 9 months of age. A lot of producers who raise British bred bulls will start using them on heifers or cows when they reach ~12 months of age.
But the best thing to do is to start using the bulls when they start showing signs of sexual maturity: when they show interest in cows or other heifers that are in heat, attempt to mount and ejaculate, etc.
Often a bull should stop breeding either if he's too old and not fertile enough any more to be used, or if he's become too aggressive and dominant with his handlers to be considered a keeper anymore. There really is no defined age when a bull should stop breeding.
Often a bull should stop breeding either if he's too old and not fertile enough any more to be used, or if he's become too aggressive and dominant with his handlers to be considered a keeper anymore. There really is no defined age when a bull should stop breeding.
Herd bull, stud bull, etc.
Yes, if he's already reached puberty.
Simmental bull calves will reach puberty when they get to be around 10 months of age, and are commonly used for breeding when they are past 12 months old.
Often a bull should stop breeding either if he's too old and not fertile enough any more to be used, or if he's become too aggressive and dominant with his handlers to be considered a keeper anymore. There really is no defined age when a bull should stop breeding.
Often a bull should stop breeding either if he's too old and not fertile enough any more to be used, or if he's become too aggressive and dominant with his handlers to be considered a keeper anymore. There really is no defined age when a bull should stop breeding.
A bull is 51 when he stops breeding in bull years
Herd bull, stud bull, etc.
Staffied come into heat for the first time at around 6 months of age, but it is recommended that you wait until the second heat before breeding the dog, preferably at least one year of age.
Yes, if he's already reached puberty.
Simmental bull calves will reach puberty when they get to be around 10 months of age, and are commonly used for breeding when they are past 12 months old.
The absolute minimum age that you could breed your Bull Terrier is after she has had at least two seasons. She should breed perfectly fine on her third season or later, but the best age for breeding is three years of age.
This depends on whether that bull has already reached puberty or not. Usually the safest time to start breeding a young bull to cows and heifers is when he's at least 10 months of age.
Size doesn't matter in this scenario. A bull will reach is terminal (or mature) weight by the time he reaches 3 to 4 years of age, and can continue to be used for breeding, as long as he's got good fertility and libido, and doesn't challenge the owner in any way, for up to 15 years of age.
A bull.
Just like with cows, a bull is culled based on conformation, temperament, fertility, health issues and breeding ability. A bull can be too old to breed when he's 5 yrs old or at least 15 years of age.