How to make sows ovulate in winter oestrus

The sows are ovulating and bred in the oestrus in winter, and the time of farrowing is the ideal season for spring bloom in the coming year. There are three advantages: First, it is beneficial to the sow's health; Second, it is conducive to the survival and growth of piglets; Third, it is the timing of live pig filling, piglets are sold well, and the price is high. How can we make sows ovulate in winter oestrus?

To strengthen the feeding and management of sows: The cold weather in winter has an impact on the health and ovulation of sows. At the same time, the sows with their cubs are in a state of intense production and consume a lot of their physique. Therefore, the sow's husbandry and management must be strengthened during this period to meet the needs of various nutrients so that the sow can obtain comprehensive nutrients. Pay attention to the right amount of fish meal, blood meal, bean cake, bone meal, carrot, pumpkin and other protein, minerals, and vitamin feed, the effect is even better. If fed properly, sows with nymphs usually develop estrus 3-5 days after weaning and are able to ovulate and breed normally.

For empty fat sows who want to lose weight, they must reduce their calories: During the rearing process, empty-sow sows for over-fertilizers should take measures to cut down and reduce their calving. Because the sow is too fat in any season, it often fails to ovulate normally. As a sow for breeding, it is advisable to use a body condition that is not fat or skinny.

Artificial aphrodisiac: In order to promote ovulation in normal oestrus of estrus-inducing sows and repeated infertile sows, artificial aphrodisiac measures can be used, such as heterosexual induction method, control of lactation time aphrodisiac method, nesting method, early weaning piglet weaning, and massage of breasts. The hormone aphrodisiac method can achieve better aphrodisiac effects.

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