Measures to improve the production level of sows

The production level of sows directly affects the efficiency and benefit of pig production. It is of great significance to ensure and improve the production level of sows by strengthening the reproductive management of sows.

The sows after breeding should be examined for pregnancy in time, and the empty sows should be found as soon as possible to promote their estrus and rematch in time. Conditional pig farms can use instruments. 25-30 days after mating, the pregnancy of sows was determined early in order to find out the non-pregnant sows and reproduce in time. This is an effective measure to increase the reproduction rate of sows and reduce the loss of feeding costs caused by empty sows.

First of all, estrus, no matter this or artificial insemination, timely mating is an important factor to obtain good fecundity, and accurate investigation is the premise of timely mating. The second is to find the returning sows in time. If there is no pregnancy diagnostic instrument in the field, the oestrus sows can only be detected by manual examination. Therefore, the examination of return should be strengthened at 18-24 days, 39-45 days and 60-66 days after mating. Check the situation with a mature boar, the ideal boar should be at least 12 months old, can press the back examination, can also stimulate the ribs and abdomen. The key to successful mating is to correctly grasp the estrus symptoms and timely mating.

Secondly, by strengthening feeding and management to reduce the number of non-production days of sows, the number of weaned piglets and economic benefits can be significantly increased. Timely take the initiative to eliminate low-performance sows and maintain a reasonable parity structure, the general ideal parity structure of sows is as follows: 20% of the first parity, 18% of the second parity, 17% of the third parity, 15% of the fourth parturition, 14% of the fifth parity, 10% of the sixth parity and 6% of the seventh parity. Take the initiative to eliminate those sows whose parity is too high, performance decline, non-estrus for a long time, inflammation of reproductive organs, poor limbs and legs. Once the elimination of sows is determined, they should be eliminated immediately. It is actually unscientific for some farmers to be unwilling to eliminate sows when the price of hairy pigs is high. Hongliang