The dog dog is growing to certain stage, achieved certain age time, has the fertilization ability sperm to be able in the male in vivo production, this was had achieved the nature was mature.The nature mature did not explain the male dog may the copulation reproductive capacity, this is because the dog dog's body does not have grows completely maturely.Suitable dog dog's breeding is probably achieving 1 year old of age time.Generally speaking, small dog maturely compared to large-scale dog sooner.

Believed generally that, dog's nature mature is living the latter 8- in December age, breakfast some 6 month-long.This kind of situation each place also has the difference.Middle and small scale dog when 1-1.5 years old reproduces descendant's survival rate to be high, the large-scale dog starts in 2 years old to be suitable the reproduction.

The dog leishu in is in heat solely the animal, cannot be in heat repeatedly.The normal bitch is in heat every year 2 times, majority in the spring 3, in April and the autumn 9, in October is in heat.