title: A preliminary report on the use of a chronic peritoneal fistula for endoscopic examination of ovine ovarian activity.
abstract: A description is given of a technique devised to allow repeated endoscopic observations to be made of ovarian changes occurring during an oestrus cycle in the ewe.  The use of a chronic peritoneal fistula is illustrated and the methods used to maintain its patency discussed.  The technique was carried out in a small number of ewes and the ovarian changes occurring in an ovary of one of these ewes, over a 22 day period, are shown in photographic and diagrammatic form.
mesh_terms: D000818:Animals; D003338:Corpus Luteum / Q000502:physiology; D004971:Estrus; D005260:Female; D005313:Fetal Death / Q000662:veterinary*; D007440:Intubation / Q000295:instrumentation / Q000662:veterinary; D010535:Laparoscopy / Q000379:methods / Q000662:veterinary*; D010053:Ovary / Q000502:physiology*; D010537:Peritoneum; D011247:Pregnancy; D012756:Sheep / Q000502:physiology*