title: Fertility of male rabbits during oligozoospermia induced by injections of medroxyprogesterone acetate and testosterone enanthate.
abstract: Spermatogenesis of male rabbits was completely suppressed by weekly injection of medroxyprogesterone acetate (10 mg) combined with testosterone enanthate (5 mg) for 6 weeks. However, the fertility of the medicated animals was not abolished during the induced oligozoospermia objectively determining by artificial insemination. Besides reduction in sperm density, the drugs did not cause any significant change in neither sperm motility nor morphology. If the combination of medroxyprogesterone acetate and testosterone enanthate is to be effectively used as a male contraceptive it must be given at such a dose that azoospermia is induced and continuously maintained with some consequent undesirable side effects.
mesh_terms: D000818:Animals; D005298:Fertility / Q000187:drug effects*; D008297:Male; D008525:Medroxyprogesterone / Q000031:analogs & derivatives* / Q000494:pharmacology; D017258:Medroxyprogesterone Acetate; D009845:Oligospermia / Q000139:chemically induced*; D011817:Rabbits; D013076:Sperm Count; D013739:Testosterone / Q000031:analogs & derivatives* / Q000494:pharmacology; D013997:Time Factors
chemical_list: D013739:Testosterone; C004648:testosterone enanthate; D017258:Medroxyprogesterone Acetate; D008525:Medroxyprogesterone