Two kinds of breeding sows

In order to fully increase the utilization of breeding sows and strive to make each sow produce a second child each year, the following two methods should be adopted to reduce the breeding cycle of the sow and increase the reproductive power according to the body condition of the sow.
First, piglets weaning method. It is to make the piglet leave the sow less than 35 to 50 days after birth and no longer suckle. In this way, the sow can be estrus and mated within 7 to 9 days after weaning. This method is more appropriate for sows that have delayed estrus after weaning, or have more counter-litters that may make the next child less likely to catch the farrowing season. The main methods for early weaning are as follows: First, leaving the mother to move the baby: the piglet is left in the original housing to make up the feeding, and the sow is moved to another housing. The second is that weaned piglets must be fed easily digestible feed, 8 to 9 times a day, and less frequently fed. The third is that sows after weaning can not immediately reduce the feeding standards, but to strengthen the energy feed supply. This will enable the sow to be estrus immediately after weaning and increase ovulation.
Second, sows raise milk law. That is, the weaners are weaned and supplemented by artificial feeding, so that the sows increase their milk and promote sow mating during estrus, so as to shorten the reproductive cycle of sows. The main methods for sows to increase milk are: 1. When sows are breast-feeding until the 20th to 35th day, the sows are driven off during the day, separated from the piglets, and circled together with the piglets at night. During this period, the sows should be given more energy feed and green feed. 2. When the sow is breast-feeding, the boar is used to induce the boar 2 times a day. At the same time, the fingers are bent into a half-curved shape every day. A circular motion is performed around the nipple with fingers, but the nipple is not touched, and the breast and the deep breast layer are massaged. About a minute or so, the sow ovulates. 3, to strengthen the nursing of piglets, increase the number of feeding. Observe the sow groundly, match the species at the right time, and ensure the stability of the registration.

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