When is the best time for golden retrievers to mate? The earliest breeding time for golden retrievers should be when they are in their second estrus, that is, about one and a half years old. However, the best breeding time for male dogs is around two years old, and for female dogs when they are in their third estrus. It is best to do a health check-up on both dogs before breeding, and choose a quiet and clean place when breeding.

Golden retrievers reach sexual maturity about 7-8 months after birth. At this time, golden retrievers have the ability to reproduce, but it is not recommended to breed golden retrievers at this time. Because the golden retriever's physical development is not yet sound enough at this time, it will be somewhat reluctant to bear the pressure of pregnancy.

The earliest breeding time for golden retrievers should be when they are in heat for the second time, that is, about one and a half years old. However, the best time for breeding is when a male dog is about two years old. When a female dog is in heat for the third time, all the body functions and organs of the male and female dogs are fully developed, and the activity of sperm and eggs is also relatively high. Suitable for breeding.

Adult golden retriever female dogs will go into estrus twice a year, with the spring estrus period from March to May and the autumn estrus period from September to November. The sign of estrus is vaginal bleeding, which usually lasts for about 21 days.

Precautions for golden retriever breeding:

1. Before breeding, it is best to conduct a health check-up on both dogs to ensure there are no diseases.

2. When breeding, choose a quiet and clean place, and avoid being watched by others except the owner.

3. In order to improve the success rate of breeding, dogs can be mated 2-3 times during estrus.