title: Fertility of sheep given antisera to steroids during anoestrus.
abstract: The incidence of oestrus (6/46) and ovulation (14/46) in ewes given antisera to androstenedione, oestrone, oestradiol and testosterone either separately or as a mixture of these sera at the time of treatment with progestagen sponges alone or progestagen sponges followed by LH-RH was similar to that of control ewes (2/13 and 6/13 respectively). The number of corpora lutea (CL) recorded for those ewes that did ovulate was, however, greater in the antiserum-treated ewes (22 CL/14 ewes) than in the controls (6 CL/6 ewes) at the first ovulation after sponge withdrawal. This superiority persisted to the second ovulation (53 CL/42 treated ewes compared to 13 CL/13 controls). The results for groups treated with antisera did not differ amongst themselves.
mesh_terms: D000735:Androstenedione / Q000502:physiology*; D000818:Animals; D003338:Corpus Luteum; D004958:Estradiol / Q000502:physiology*; D004970:Estrone / Q000502:physiology*; D004971:Estrus / Q000187:drug effects; D005260:Female; D005298:Fertility; D007987:Gonadotropin-Releasing Hormone / Q000494:pharmacology; D007106:Immune Sera / Q000494:pharmacology; D007986:Luteinizing Hormone / Q000097:blood; D010060:Ovulation / Q000187:drug effects; D011247:Pregnancy; D012756:Sheep / Q000502:physiology*; D013739:Testosterone / Q000502:physiology*
chemical_list: D007106:Immune Sera; D004970:Estrone; D007987:Gonadotropin-Releasing Hormone; D013739:Testosterone; D000735:Androstenedione; D004958:Estradiol; D007986:Luteinizing Hormone