The peak period of sow lactation is 20-30 days after childbirth and significantly decreases after 40 days. The extent to which breast milk meets the nutritional needs of piglets is 97% at 3 weeks of age, 37% at 4 weeks, and 28% at 8 weeks of age. The amount of sow milk is gradually reduced, and the longer and faster the piglets, the contradiction between nutrient supply and demand. The piglets before the age of 3 weeks had no intention of eating, but at the age of 4 weeks they also had to rely on feeding to supplement the lack of breast milk. It is imperative to train piglets to eat early, but it can be very difficult. In the past, pigs in rural areas in the south and north of China did not pay attention to piglet feeding. In recent years, southern Sichuan province has vigorously promoted early feeding of piglets and achieved good results. The survival rate of piglets is high, and the weaned pigs have a large number (weanings are not fed). The body weight is generally 10-12 kilograms, and the feed is generally 15-16 kilograms or more. The economic benefits are significant. Piglets should be trained to drink water for 3-5 days after birth, and training should not be started later than 7 days of age. The induced food can be mixed with fried corn kernels, fried soybeans, ground spices, blended with flavors and saccharin, and withdrawn to a clean concrete floor to allow piglets With the sow learning to eat, 4-5 times a day, time is 8-11 am, 14-18 pm is good, then the piglet is active, training I food is easy to succeed. After the piglets pick up the materials, they use a small trough to feed the full-price compound feed. They feed 6-8 times a day and night from 4 o'clock to 20 o'clock. Every time they add less ground, the raw material is wet raw material (1 part plus 0. 5 parts of water mix well, another tank standing clean drinking water. Whether the training is successful or not is a sign that the piglet can automatically feed it before and after 20 days of age. The requirements for full feed supplements for piglets are: high energy, excellent protein, complete nutrition of minerals and vitamins, and additives. The energy needs to reach more than 3.2 megakascal per kg of diet, crude protein is at least 18% (lysine 0.9%), calcium is 0.8%, and phosphorus is 0.6%.

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