Nutrition and diet of sows

During the breeding period, the daily feed intake of 80-90kg reserve sows should not exceed 2kg compound feed, and the diet of reserve sows should contain digestible energy 3.1 MCAL / kg, crude protein 15%, lysine 0.7%, calcium 0.82% and phosphorus 0.73%, and ensure an adequate supply of trace elements and vitamins. The nutritional characteristic of pregnant sows is to control the appropriate nutritional level. According to the feeding standard of our country, when the weight of sows in early pregnancy (the first 80 days after pregnancy) is 90-120kg, the daily feed intake is 1.7kg, the body weight is 120-150kg, and the daily feed intake is 1.9 kg 150 kg body weight is 2kg. The body weight in the third trimester (prenatal month) was more than 90-120kg, 120-150kg and 150kg, and the daily feed intake was 2.2kg, 2.4kg and 2.5kg, respectively. The dietary nutrition level is 12% mi 13% for crude protein, 2.8-3.0 MCAL / kg for digestible energy, 0.4% for lysine, 0.5% for calcium and 0.5% for phosphorus. In addition, in addition to feeding formula feed, in order to make sows feel full and supplement vitamins, it is best to match with excellent varieties of green feed or roughage. For the lean sows after weaning, the feed intake should be increased from 10 days before mating until the reproductive condition is restored after mating. For the sows whose fat condition has reached 70% in the early stage of pregnancy, they were given low nutrition level in the early stage of pregnancy and increased feed intake in the later stage (according to the feeding standard). For young sows, due to their own development and fetal needs, feeding methods should be adopted to gradually improve the nutritional level during the whole pregnancy period. No matter which type of sows, short-term optimal feeding is needed in the third trimester of pregnancy (90 days to 3 days before parturition) by adding 1kg formula feed to each sow every day. 5-7 days before parturition, sows should reduce concentrate according to 10% Mel 20% of the diet, and increase wheat bran in the diet, which can be increased to half of the original feed to prevent constipation. It is best not to feed 10-12 hours before delivery, but drinking water should be satisfied and cold water should be warmed up. The diet of 0.9-1.4kg can be fed on the day of delivery, then increased gradually, and reached the feeding standard and feeding amount of lactating sows after 5-7 days. Sows had better be fed with a certain dose of antibiotics 7-10 days before delivery to prevent various diseases in piglets and sows. The crude protein, digestive energy, salt, lysine, calcium and phosphorus in the formula feed of lactating sows should be 14%, 15%, 2.9-3.1 MCAL / kg, 0.4%, 0.5%, 0.6%, 0.65% and 0.5%, respectively. Pay attention to the adequate supply of trace elements and multivitamins. The main points of feeding lactating sows should be mastered the daily feeding quantity and times. Do not feed too much after delivery, gradually increase the daily feed after 3-5 days, and return to normal after 7 days. At 10-20 days postpartum, the daily feeding amount should reach 4.5-5kg formula feed, and reach 5.5-6 kg per day in 20-30 days, and gradually decrease to about 5kg in 30-35 days. It is better to feed 4 times a day, which is suitable at 6 o'clock, 10:00, 14:00 and 22:00 every day. Lactation sows are best fed with raw wet feed, and the ratio of feed to water is 0.5-0.7. -Thank you for such good information.