Changes in plasma LH and testosterone levels and semen quality after a single injection of hCG in two dogs with spermatogenic dysfunction.
Plasma LH and testosterone (T) levels and semen quality after a single intramuscular injection of 1,000 IU hCG were investigated in a Beagle dog with azoospermia and a Beagle dog with poor semen quality. The plasma LH levels of both dogs did not change after the treatment. Although the plasma T levels of the dog with azoospermia increased temporarily, no sperm were detected in its semen. In the dog with poor semen quality high levels of plasma T were maintained for 2 weeks after hCG treatment and its semen quality was temporarily improved between 3 and 4 weeks after treatment. These findings indicate that the semen quality of dogs with oligozoospermia can be temporarily improved after a single injection of hCG.
Department of Reproduction, Nippon Veterinary and Animal Science University, Tokyo, Japan.
E
E
Kawakami
T
T
Hori
T
T
Tsutsui
D000818:Animals; D006063:Chorionic Gonadotropin / Q000627:therapeutic use*; D004283:Dog Diseases / Q000097:blood* / Q000628:therapy*; D004285:Dogs; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D009845:Oligospermia / Q000097:blood / Q000628:therapy / Q000662:veterinary*; D012661:Semen / Q000187:drug effects / Q000502:physiology*; D013081:Sperm Motility / Q000187:drug effects; D013094:Spermatozoa / Q000002:abnormalities / Q000187:drug effects / Q000502:physiology*; D013739:Testosterone / Q000097:blood*; D013997:Time Factors
D006063:Chorionic Gonadotropin; D013739:Testosterone; D007986:Luteinizing Hormone