Temporary infertility in Merino ewes grazing improved pastures in western Australia.
A temporary infertility was observed in flocks of ewes on a commercial property at Kojonup in Western Australia. During 1970 evidence of oestrogenic stimulation of the ewes was recorded. Two possible explanations of the cause of the condition are discussed.
D000818:Animals; D001315:Australia; D005260:Female; D007247:Infertility, Female / Q000209:etiology / Q000662:veterinary*; D006109:Poaceae; D011247:Pregnancy; D012756:Sheep; D012757:Sheep Diseases / Q000209:etiology*