First, choose the appropriate weaned piglets in the current rural conditions, should promote the use of early weaning 4-5 weeks of age. If weaning is premature, because it does not have the appropriate conditions, conservation is difficult and it is unfavorable for production. Farmers who feed early weaned piglets must first be market-oriented in order to sell the pigs or pigs that they develop in the future; followed by the purchase of qualified piglets whose main signs are weaning at 4 to 5 weeks of age and weighing 6 - 8 kg, intake of more than 200 grams per day (can be judged from the fecal status reference), unqualified early weaned piglets easily diarrhea and thin; the third is to buy good shape, good spirits, healthy and lively, sound crisp Individuals with normal feces, quarantine, and immunological markers are all important. Second, the preparation of pigshed and pig care pigs is an important facility for early weaning piglets. The position of the barnhouse must be conducive to hygiene and epidemic prevention and feeding and management. The temperature in the south is relatively high. The nursery bar should be divided into two parts: indoor and outdoor. The indoor part should be equipped with a heat preservation room, a feeding trough and a bed, etc. The outdoor part should be provided with drinking water, spray equipment, free sports field and excrement and urine and urine space. Two weeks before entering the pig, the pens must be cleaned, cleaned, and sterilized twice with two different disinfectants and left empty for later use. When buying piglets, you must ask to find out the conditions of injection and feeding prevention, so as to provide reference for later epidemic prevention and feeding management. When entering the pigs, they are grouped appropriately by sex and weight, with 10 to 20 heads per column, and each head occupying an area of ​​about 1 square meter. After the grouping, pigs must be fully sprayed with disinfectant liquid once, which can effectively prevent disease and avoid biting and stabilize the pigs. Then let the piglet drink the appropriate amount of electrolyte solution (25 g of glucose, 4.5 g of sodium chloride, 2 g of sodium bicarbonate, 0.3 g of citric acid, 0.2 g of potassium acetate, 0.05 g of potassium chloride, add water to 1000 ml) to enhance resistance. . Third, pay attention to the use of full-priced feed must use weaning material rather than pig feed or piglet feed early weaned piglets. There are three characteristics of weaning materials: First, it is easy to digest, and the stimulation of the digestive tract is small. Often used whey powder, puffed soybeans, fish meal, plasma protein powder and fat powder and other easily digestible raw materials involved in the preparation, combined with the addition of exogenous protease, amylase, pectinase, phytase, etc., in order to promote digestion and reduce Anti-nutritional factors cause damage to the digestive tract. The second is to add a reasonable proportion of acidifying agent (such as citric acid, etc.) to keep the pH of the gastric juice below 4 after ingestion of feed, promote the action of pepsin, and increase the digestibility of protein in the diet. The third is to add appropriate amount of probiotics and oligosaccharides to maintain the normal micro-ecological environment of digestive tract of piglets and improve digestive function. The rational use of weaning materials can minimize the weaning stress of piglets, effectively prevent weaning and thinning, and promote the normal development of digestive organs and immune organs. Fourth, the use of two-stage restriction feeding method This feeding method can effectively solve the problem of early weaning piglets eat more diarrhea or eat less slowly. This method divides the nursery period of early weaned piglets into two stages, weighing 6–12 kg and 12–20 kg, each of which lasts 2.5–3.0 weeks. The first stage was fed with weaning material (about 13.5-14 Mg/kg of digestive energy and 19%-20% of crude protein), fed 5 meals a day and fed once every 2.5 hours, and each meal was fed with 80% fullness. If you eat too full and easy to diarrhea. Feed the sucker feed (about 13.5 MJ/kg of digestible energy and 18% to 19% of crude protein) in the later stage, but do not change the weaning material directly to the feed of the sucker, but must start with the proper blending of the feed material from the weaning material. Gradually realize the use of sucker feed instead of weaning feed. In the later stage, 4 meals are fed every day, and they are fed once every 3 hours. Each meal is fed immediately after eating but no food is left. Must be fed regularly to help digestion and absorption, and promote growth and development. Generally, early weaned piglets have a body weight of about 20 kilograms at the end of the conservation period (ie, up to 8-9 weeks of age) and a weight gain ratio of 1:1.6-1.8. Must be promptly slaughtered.
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