A Study of Reproductive Wastage among Commerical Sheep Flocks Grazing Oestrogenic Pastures in South Western Australia
نویسندگان
چکیده
Reproductive wastage was investigated over two seasons in ten Merino flocks grazing pastures based on oestrogenic subterranean clover. Only 65 percent of ewes were served during the first 16 days of joining. Ovulation rates were low, averaging 1.13. Fertilization rates (73%) were low when compared with flocks unaffected by oestrogenic pastures. Embryonic mortality varied considerably between properties and years averaging 27 percent.
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