Feeding techniques in different stages of Pig raising

Www.zhifujing.org pig raising technology:

1. Breeding techniques of suckling piglets (1) to ensure that suckling piglets eat enough breast milk: the only source of nutrition for piglets after birth is breast milk, and only by eating enough breast milk can the nutritional needs of their growth be guaranteed. With the increase of age and body weight, the amount of breast milk needs to increase, but the amount of breast milk secretion reaches the peak at 21 ~ 25 days old, and then decreases gradually, therefore, in order to ensure normal growth. Breast milk alone can not meet the nutritional needs of piglets, which requires timely replenishment for piglets. (2) pay close attention to feeding: piglets should be fed early, and early feeding should be carried out. On the one hand, it can exercise the digestive function of piglets, on the other hand, it can supplement the nutritional deficiency of breast milk. Generally, piglets are lured to eat food from 6 to 7 days after birth. After 2 weeks of training, you can eat a certain amount of feed at the age of 3 weeks. The feed for piglets includes concentrate feed, green feed, mineral feed and vitamin feed. In the process of supplementary feeding, concentrate feed should pay attention to from pellet to powder, from less to more step by step. Green succulent feed should be chopped or pulped and mixed with concentrate, mineral feed should be broken and mixed well, and special attention should be paid to the supplement of iron, copper and other trace elements. 2. Feeding technology of weaned piglets the nutrition needed for piglets was changed from breast milk and feed supply to only from feed. The change of this condition gave piglets a stress stimulus. Often piglets will lose their appetite and their digestive ability will be weakened, so the feed should be well fed, nutritionally balanced and easy to digest. The diet should contain energy, crude protein, minerals and vitamins needed to grow bones and muscles. Weaning piglets should be based on concentrate feed, and the variety should be diversified. Corn, barley, sorghum in energy feed, bean cake and beans in protein feed are all good feed. In the early stage of weaning, the amount of feeding should be controlled, and the control range should be 80%. Then you can eat freely, and the form of feed is powder and granule. 3. Feeding techniques of growing pigs (1) rational preparation of diets according to the characteristics of fast growth and nutritional requirements of growing pigs. (2) Scientific preparation of diet: in order to improve palatability and Lean efficiency of feed, chopping and beating raw feed is often adopted for green roughage to reduce volume and reduce waste. For concentrate, besides crushing, it should be prepared into various forms, such as granular feed, dry powder, wet mixing and dilute feed. At present, there are two kinds of powder and wet mixing material in production. (3) feeding technology: in the feeding of pigs, free feeding and limited feeding are often used: free feeding means that there is a sufficient amount of full-price compound feed in the pig trough to allow pigs to eat freely and drink water freely. Limited feeding is a conscious control of feeding, generally controlling 80% of free intake or adding indigestible fibrous feed to the diet. To reduce the energy concentration. Control the intake of energy protein. For the growing period of miniature Xiang pigs, the feeding method is adopted flexibly according to its use. limited feeding can be used as experimental animals to reduce weight gain, such as Roasted Suckling Pig, free feeding can be adopted to improve the speed of weight gain. As for the feeding times, it is appropriate to feed 2 or 3 times a day.