First, weaning irrational farmer pigs to take a weaning method, immediately listed after weaning, so that the pig's living conditions suddenly changed, it is difficult to adapt to affect weight gain. The correct method is to gradually reduce the number of times the pig is suckled until 5 to 6 days before weaning until it is fully weaned. Second, feed is not timely Pigs in the lactation stage did not feed in time, after weaning can not eat well, no breast milk supplementation, causing slow growth, development stopped. Generally, pigs should be fed at the age of 10 days, and they should start with fragrant, sweet, brittle and easily digestible feeds, and gradually change to normal feed later. Third, feed and feeding methods are not reasonable after weaning, not only can not eat on the mother's milk, and feed quality decreased, the number of daily feeds also drastically reduced, the drastic changes in these conditions so that the normal development of the pig was hindered. Therefore, when buying pigs, it is necessary to inquire about the seller's feeding and management of pigs in detail, so that the quality and quantity of feed gradually transition, fine, green, rough feed gradually transition, the number of feeding gradually transition from more to less. Fourth, the environmental conditions change too much The pigs were weaned before they were weaned and cohabitation among their siblings. After weaning, it is usually 1 lap and the pig can not adapt to this lonely life for a short time. Especially in the cold winter, it is difficult to eat well, it is prone to various diseases and even death. Therefore, when purchasing pigs, it is necessary to understand as much as possible the original feeding conditions, create a comfortable living environment for the pigs, and gradually change the feeding conditions. V. Extensive management Farming pigs are now usually 1 pig 1 lap, and some pigs eat, sleep, defecate at the same place, combined with not cleaning and washers, causing environmental pollution, poor health conditions, especially in the winter, very It is easy to cause a series of diseases such as swine flu and diarrhea, which seriously affect its health and is extremely unfavorable to its growth and development. In actual production, pigs can compete for food and grow fast, depending on how fast they eat and how good they are. At the same time, it is necessary to do a good job of training to make it a fixed point of eating, defecation, sleep, sleep and maintain sanitation. Sixth, the epidemic prevention and castration time is not for farmers to buy more pigs to the bazaar. At the same time, they should be given epidemic prevention and castration. In this way, weaning, epidemic prevention and castration were all added to the sow pigs, so that the pigs could not recover in a long time, seriously affecting their normal growth and development. Pigs grew slowly and formed stiff pigs. Some loss. In general, small boars that are not kept at the seed can be castrated at 20 days and gilts can be cast at 30-40 days. In order to prevent certain infectious diseases, swine fever vaccine can be vaccinated before 30 days of age. The swine erysipelas vaccine can be inoculated at 90 days of age. Blood Plasma Products,Blood Products,Human Rabies Immunoglobulin,Viral Infection Sichuan Yuanda Shuyang Pharmaceutical Co., Ltd. , https://www.syimmunoglobulin.com