Abstract
IN the course of investigations on the natural breeding activity of a flock of ‘Clun’ sheep on the College Farm, 37 cases have been recorded, over several seasons in which entire rams have run continuously with the flock, of ewes lambing in one season and conceiving again in the same season. Some of these ewes have lambed in the autumn and conceived again in the winter, and others have lambed in the late winter and conceived again in the spring.
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LEES, J. Inhibitory Effect of Lactation on the Breeding Activity of the Ewe. Nature 203, 1089–1090 (1964). https://doi.org/10.1038/2031089a0
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DOI: https://doi.org/10.1038/2031089a0
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Seasonal Variation in the Breeding Activity of Rams
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