Nutritional requirements and feeding management of lactating sows

(agricultural Wealth Network) this post was finally edited by the breeding female champion at 13:06 on 09-11-9. As lactating sows secrete more milk, the nutritional requirements of lactating sows are much higher than those of pregnant sows; to increase the nutritional intake of lactating sows, they need high nutritional diets and increase feed intake as much as possible. It is best to give different diets to parturient lactating sows and parturient lactating sows. Dietary nutrition standards for lactating sows: digestible energy 3300 kcal / kg, crude protein 17%, lysine 0.9%, calcium 0.9%, total phosphorus 0.6%; nutrition standards for parturient sows: digestible energy 3200 kcal / kg, crude protein 16%, lysine 0.8%, calcium 0.85%, total phosphorus 0.6%; in addition, it should also contain comprehensive and sufficient vitamins and trace elements. In order to achieve this nutritional level, high-quality raw materials must be selected. in the summer high temperature season, when the feed intake of lactating sows decreases, it is a good way to add oil to the diet to increase the nutritional supply. The suitable feed intake of lactating sows can be estimated by the following formula: the suitable feed intake of lactating sows (kg) = 1.5 × 0.5 × the number of piglets with 10 piglets, theoretically, the daily feed intake should reach 6.5 kg to ensure sufficient milk secretion for piglets, and not to lose too much weight and affect the reproductive performance of the next fetus. If the feed intake of sows is too low, the following methods can be adopted: 1. Increase the feeding times. 2. Wet feeding method was adopted. 3. Reduce the temperature in the pigsty (but pay attention to the temperature of piglets). 4. Feed high energy feed. 5. Provide adequate drinking water. 6. try to get the sows to stand up and feed during the feeding time. 2. Feeding and management of lactating sows 1. One week before parturition, sows enter the sterilized delivery room, prepare delivery supplies, and connect infrared insulation lights. 2. After entering the delivery room, according to the fat condition of lactating sows, the feeding amount is gradually reduced, and those with poor body condition can be reduced or not reduced. 3. Pay attention to observe every clinical symptom of sows: (1) one week before delivery, the vulva is red and swollen, and both sides of the tail root are sunken, commonly known as "collapse", and the nipple can squeeze out milk about one day before delivery; (2) the local breed Primrose made a nest for 6-8 hours before delivery; the introduced breed arched the ground with the mouth or scratched the ground with the forefoot, and was uneasy. Walking back and forth, defecating and urinating frequently. 4. There is a special guard during the delivery process, the whole delivery process is 14 hours, usually 5-25 minutes to produce a piglet, the placenta is removed immediately after excretion, to prevent sows from eating piglets after eating placenta. For dystocia, oxytocin 2030 units should be injected intramuscularly, and cardiotonic injection should be injected at the same time. If piglets are not produced after half an hour, artificial midwifery is needed. Disinfect the arm and extend it into the birth canal. If the birth canal is too narrow, ask a doctor to do a caesarean section. 5. on the day of giving birth, they were not fed with bran salt water or bran electrolyte water, and then gradually increased the feed intake to the highest level within one week, and then fed freely and fed 3 times a day. It is possible to increase the feed intake of lactating sows as much as possible. It is strictly forbidden to supply moldy or spoiled feed. If the sow has a loss of appetite after delivery, it can be fed with 3 or 4 pairs of vinegar mixed with a raw egg, which can improve the appetite of the sow in the short term. 6. Provide uninterrupted clean drinking water, keep the delivery room clean and hygienic, and prevent the occurrence of mastitis and non-breast disease. Once mastitis occurs, apply or wet cloth to massage the breast and squeeze out the milk. Squeeze 4 or 5 times a day for 3 days until the breasts are loose and the skin is wrinkled. If the breast hardens and the extruded milk is thick, antibiotics should also be injected to reduce inflammation. 7. 3 days before weaning, the feed amount of sows is gradually reduced, and no feeding or less feeding is given on the day of weaning. Only after the milk secretion decreases gradually on the 2nd or 3rd day of weaning can the feed quantity be increased and the estrus feeding begins. Thank you for sharing