Effect of active immunisation of ewes against synthetic luteinising hormone releasing hormone.
D000818:Animals; D000917:Antibody Formation; D004971:Estrus; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000097:blood / Q000276:immunology*; D007110:Immunity, Active; D011247:Pregnancy; D012756:Sheep
D007987:Gonadotropin-Releasing Hormone