How to promote weaning sows again estrus?

1. Strengthen management: Sow malnutrition or excess nutrients can cause estrus. Therefore, weaning sows after weaning need to improve feed nutrition, timely increase precision feed, and promote recovery of sensation. Sows who are overweight should reduce their concentrates, increase green roughage, and exercise more, so that the sow can reach a moderate sensation. At the same time, sows that have not been estrus for a long time after weaning can be fed together, and the purpose of promoting ovulation of sows through estrus sows can be achieved.

2. Hormonal affidavit: Each gilt gilt is injected with 3 ml of triad hormone, and usually after 3 days, there are more than 97% of sows in estrus. About 70% of sows are affected by gestation. Even if the estrus partner is not affected by the fetus, natural estrus can occur in about 20 days. If sows are injected with 40 micrograms of somatotropin 2 per sow for the first half hour of sow mating, 37% of litter size can be increased.

3. Acupuncture and moxibustion: Acupuncture is performed for 10 minutes on the “Baihui” and “Taileon” acupuncture points of sows who have not been estrus for a long time after weaning. 88% of the sows will be estrus within half a month after acupuncture, and 68% of the sows after mating. Sows can be born to a baby.

4, Chinese medicine promotes passion: Yang Qishi, angelica, epimedium, sputum each 50 grams, motherwort 70 grams, dodder seed, red peony 40 grams each, rehmannia 30 grams, add water to fry twice, mixed into liquid medicine 2-5 kilograms , taken in three times, the effect is better.

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