An 11-month-old healthy male Miniature Poodle was referred because of infertility. The dog was the only male at the kennel, and no other animals at the kennel were infertile.
During the preceding 2 months, the dog had mated with 4 previously fertile bitches, none of which became pregnant. Libido and sexual behavior of the dog during those matings were considered normal. Each of the matings was followed by a corresponding copulatory tie. The medical history did not reveal husbandry problems, inbreeding, or administration of any drugs that would interfere with fertility of this particular dog or the other animals