title: The induction of fertile oestrus in seasonally anoestrous ewes using a continuous low dose administration of gonadotrophin releasing hormone.
mesh_terms: D000780:Anestrus / Q000187:drug effects*; D000818:Animals; D004343:Drug Implants; D004971:Estrus / Q000187:drug effects*; D005260:Female; D010906:Pituitary Hormone-Releasing Hormones / Q000494:pharmacology*; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood; D012621:Seasons; D012756:Sheep / Q000502:physiology*
chemical_list: D004343:Drug Implants; D010906:Pituitary Hormone-Releasing Hormones; D011374:Progesterone