How to give Stud Service

I don't know your dog is a male or a female. As a female dog, she is not suitable to have mating in the age of 1 year, her uterus hasn't been mature. I prefer you can do this at the age of 1.5 year, and just once is enough, because giving a birth to puppies is a hard work for a mon-dog. If the mon-dog be pregnant frequently, it will hurt her body, same as to a male- dog. So, be prudential when you make this decision.