Breeders wait until the female is part the first heat but waiting 3 years of age is recomended.
A bull is 51 when he stops breeding in bull years
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.
Around 6 months old!
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.
Your cockatiels should be at least a year old before you start breeding them to prevent ill offspring.
3 years of age to start breeding
A male Yorkie should be at least a year old to start breeding, and it's better to wait until he is closer to two. This gives him time to mature and allows you to make sure he does not develop any genetic faults that he might pass on to his puppies.
They breed when they are 3 years old this is for male and female harris hawks.
about one year old
this year in 2012 he will be 23
6 months is pretty young to start breeding. Breeding is stressful on rabbits, and you should give them time to mature and fully develop their bodies and minds. Consider waiting another year, especially if the female is the 6-month old.