Measures to improve the conception rate of sows

The measures to improve the conception rate of sows include selecting good breeding boars and breeding sows, strengthening feeding management, identification of estrus and timely breeding. Breeding boars should choose testes of the same size and symmetrical arrangement, and breeding sows should choose waist length and 14 nipples. Strengthen feeding and management, so that breeding pigs can maintain balanced nutrition. After the identification of estrus, sows can be mated only after they are stable in estrus. It is necessary to mate at the right time to improve the conception rate.

1. Choose a good breeding boar

The sexual desire of breeding boars and the physical condition of breeding boars have a great relationship with the quality of semen. Poor semen quality will lead to empty sows and reduce the overall conception rate of pigs. Therefore, to choose a healthy, disease-free boar, testes of the same size, symmetrical arrangement, obvious male characteristics.

2. Choose a good breeding sow

Choose a sow with a long waist as a sow, and it is healthy and disease-free. The quality of nipples is a crucial part of choosing breeding sows. Generally, it is better to choose sows with 14 nipples, the size of nipples should be as big as soybeans and the same size in pairs.

3. Strengthen feeding and management.

It is necessary to strengthen the feeding and management of breeding boars and sows to achieve regular exercise, feed nutrition, rationalization of breeding, regularization of life and comfort of the environment, so that breeding pigs can maintain balanced nutrition. It is also necessary to maintain the appropriate male-female ratio of pigs to avoid overload use of boars. The suitable ratio of male to female in artificial insemination is 1RU 250, and that in this insemination is 1:15-20.

4. do a good job in estrus identification.

The oestrus cycle of sows is usually 20 cents and 21 days. Weaning sows usually begin oestrus 3-7 days after weaning. Sows can only be mated after they are stable in estrus. If sows are not in estrus, measures should be taken to induce estrus with boars, or early weaning of piglets, or stimulation by means of nesting of sows, proper exercise, breast massage, reduction of feeding, or drug stimulation.

5. Timely breeding

The oestrus cycle of sows usually lasts for 21 days and lasts for 5 days at a time. It is easy to conceive when sows are mated within 24-48 hours after estrus. The use of double breeding, that is, sows are mated with two boars at an interval of 30 minutes to 2 hours, which can increase the pregnancy rate and litter rate of sows.