Breeding difficulties with a stud dog.
D000818:Animals; D004283:Dog Diseases / Q000382:microbiology*; D004285:Dogs; D004823:Epididymitis / Q000382:microbiology / Q000662:veterinary*; D007248:Infertility, Male / Q000382:microbiology / Q000662:veterinary*; D008297:Male; D012661:Semen / Q000382:microbiology; D013290:Streptococcal Infections / Q000382:microbiology / Q000662:veterinary*; D013291:Streptococcus / Q000302:isolation & purification