What are the effective measures for non-estrus and repeated infertility in sows
In order to promote normal estrus ovulation in non-estrus sows and infertile sows, the following measures can be taken on the basis of strengthening feeding and management:
1. Temptation: use test boars to chase sows that have not been in estrus for a long time, or keep boars and sows in the same circle. Boar contact, climbing and other stimuli can promote estrus and ovulation.
two。 Hormone aphrodisiac: commonly used hormones are pregnant horse serum, chorionic gonadotropin and synthetic estrogen.
3. Breast massage: massage the breast for 10 minutes every morning for 3 to 5 days, which can promote the sow to be in estrus.
4. Loop: raising non-estrus sows in coop with estrus sows can promote oestrus ovulation through the climbing of estrus sows. Strengthening exercise is also beneficial to sows in estrus.
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