The sows are mated in winter. The time of farrowing is the season when spring flowers bloom and all things start. It is very beneficial to the survival and growth of piglets and the health of sows. So how do you allow sows to ovulate and mate in winter oestrus?
Strengthening winter management of sows The cold weather in winter and the low temperature affect the ovulation of gilts and estrus in sows, especially in sows with larvae, and the consumption of their physiques is relatively large. Therefore, it is necessary to strengthen feeding and management. In addition to doing well in cold insulation, it also needs to satisfy various nutrients so that it can obtain more comprehensive nutritional ingredients. Note that it is better to feed fish meal, blood meal, bean cake, bone meal, carrots, silage, or sprouted feed. If properly reared, gilts usually appear 3 to 5 days after weaning, and should be bred in time.
For the sows who are overweight, they must reduce their calories. During the rearing process of the sows, for the empty sows that are over-fat, measures should be taken to reduce the amount of the crops. Because the sows are too obese, they often cannot ovulate normally. However, they are not as lean as possible. Generally, it is appropriate to use 70% to 80% of them.
Artificial aphrodisiac is used to promote ovulation in estrus-inducing sows and in infertile sows, which can be artificially aphrodisiac. Such as: the opposite sex seduces, controls the breast-feeding time, nests the nest, advances the weaned piglets, massages the breast, uses the hormone aphrodisiac and so on method, may obtain the good result.
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