Breeding the ewes is the basis for the normal development of the sheep. The good or bad breeding is an important factor in whether the sheep can develop and whether the quality can be improved and improved. Ewes bear breeding tasks such as mating, pregnancy, and breast-feeding; the status and feeding level of ewe have a direct impact on the survival and growth of lambs, so the nutritional level of ewe can not be relaxed all year round and should maintain a good level of nutrition. Seeking to achieve multiple births, more productive, more lively, more vigorous purposes.
The nutritional status and condition of the ewes in the pre-maturing ewes play a decisive role in the occurrence of estrus, ovulation, mating, and fetusing. Full-price nutrition and upper-middle body condition can promote the increase of estrus and ovulation number of ewes. On the contrary, a serious lack of nutrition will lead to postponement of puberty, prolonged postpartum complications and prolonged estrus, so that the ewes lambing interval Prolonged, reproductive performance decreased. Therefore, short-term high-quality feeding should be started 45 days before mating, so that the ewes can obtain enough protein, minerals and vitamins to maintain a good body condition, so that the ewes can have early estrus, multiple ovulations, estrus, and concentrated lambs. Improve fertility rate and multiple birth rate.
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