If you want to use your dog for breeding when it is at its maximum fertility, wait until it is at least a year and a half old.
Make sure that your dog gets regular annual exams and that you treat any problems that are found effectively. Some general health problems that could interfere with reproduction include mobility issues that could inhibit the ability to complete sexual intercourse or injuries to the reproductive organs of the dog.
For example, genetic problems could include chromosomal anomalies in the dog or the potential for polygenic disorders if mated.
Age, too old or too young Injury to reproductive organs Physical injury or physical inability that restricts ability to mount female dog Medications that decrease fertility or sex drive
When you are trying to get a male dog to mate you need to get it near a female dog that is in the right stage of its reproductive cycle. The female dog will give off pheromones that lure the male dog towards it and initiate the breeding process. [6] X Trustworthy Source American Kennel Club The American Kennel Club (AKC) is a purebred dog pedigree registry in the United States. The AKC advocates for the responsible ownership of dogs and promotes purebred dog events, such as the Westminster Dog Show. Go to source
Semen testing is done at many veterinary clinics, as well as clinics specializing in breeding and fertility. Conditions that semen testing could identify include Teratozoospermia. This is a condition in which the dog’s sperm do not form correctly and some of them are abnormally shaped. [9] X Research source