around 2 years old for male and female.
Depending upon the breed, the average male dog is capable of siring within a few months after birth.
It is generally considered ethical to not begin to breed a male dog until it is two years old. Likewise, it is considered ethical to retire the dog at about 7 years of age, or sooner if its health fails.
cooper male
A male can breed all his life and a female can if she till has cycles but I don't suggest it.
the dog can impregnate a female in less than 5 months of it life
The male should be a few months old before mating and his testicles should have dropped
Ol' Yeller was a yellow Labrador retriever.
If you are trying to breed a dog then it should be at least 3 years old, so it is an adult and ready to breed.
It doesn't matter where they breed really. Wherever they breed it doesn't matter. Don't worry. If your dog wants to breed indoors let it, if outside let it. I have a dog but it is only 6 months old but i found this out in a dog book
Your Labrador male dog should start barking at strangers when it is at least 12 months old.
For any dog, you should wait at least for its second heat. Although most high quality dog breeders will wait until until the dog is in its second year so that the dogs general health can be properly evaluated to ensure you are breeding to improve the breed