Several measures to improve piglet quality
Piglet digestive function is not perfect, the enzyme system is underdeveloped, lack of innate immunity, poor digestion and disease resistance, susceptible to disease, affecting growth and development. First, the selection of good sows generally speaking, the major new piglets strong resistance, rapid growth and development, and this feature has a strong hereditary. Therefore, the selection of sows must be carried out when the sows are selected, from the litter to select the well-developed, nipples and neatly arranged, good-sized piglets for planting. In addition, in the same species, individual sows can better utilize feed nutrients during pregnancy to ensure the normal development of the fetus and lay a good foundation for the production of high quality piglets. Using heterozygous boars has a great influence on the quality of piglets. High-quality boars can be used to improve the quality of piglets through hybridization. Boars should choose boars that are big, fast-growing, and have a high lean percentage of boars. Strengthening sow feeding during pregnancy According to the characteristics of the sow's different stages of pregnancy, appropriate feeding methods should be adopted to ensure that sows receive sufficient nutrients from the diet to meet the needs of fetal growth and development, but do not make the sows too obese. In management, we must pay attention to proper exercise, enhance sow constitution and prevent abortion, so that the quality of piglets produced is relatively high. Enhancing the lactation of sow's milk is the only source of nutrition for piglets within 2 weeks after birth, and it is also the main food before 30 days of age. So the level of lactation is very closely related to the quality of piglets. The main way to increase the milk production of sows is to strengthen feeding management. When deploying diets to lactating sows, be aware of appropriate energy and protein levels. The digestive energy per kilogram diet should be higher than 11.72 MJ/kg, and the crude protein level should be no less than 13%. In terms of management, postpartum grain production has to be increased from less to more, and gradually increased, and where the condition can be supplemented with green fodder at night. Second, strengthen the piglet care and heat preservation of piglets born thin, back hair sparse, poor insulation, in addition, the piglets within 24 hours after birth can not use milk fat and milk protein oxidation heating, the main source of heat is to rely on the body's glycogen and breast milk lactose. Therefore, piglets are susceptible to freezing and thermal insulation is one of the important measures to improve the quality of piglets. The suitable temperature for raising piglets is: 1-3 days old 34-30°C. It is 30-28°C at 4-7 days, 25-22°C at 15-30 days, and 18-20%°C at 60 days. Especially before 10 days of age, piglets lack the ability to adjust to temperature differences and must be artificially insulated. The ability of piglets born to eat colostrum to acquire innate immunity cannot be obtained by eating colostrum. Therefore, the earlier the piglets eat colostrum, the stronger the resistance, and it is also conducive to the recovery of body temperature. The average piglet should have colostrum within half an hour of its birth. Timely iron piglets have 30-50 mg of iron stored at birth. Normal growth of piglets requires 7-8 mg of iron per head per day. In this way, starting at 3 weeks of age, a total of 200 mg of iron is needed. The amount of iron in breastmilk is very small (0.2mg-100g). Iron obtained from piglets from piglets is far from meeting their needs. Therefore, piglets must be supplemented with iron after birth. You can intramuscularly inject 1-2 mL of dextran iron and cobalt mixture on the third day of piglet birth. The early feed breast milk gradually decreased after peaking at 3-4 weeks, and breast milk alone could not meet the requirements of 5-7 days after the birth of the piglets to attract food with sauteed corn and soybeans. After the piglet recognizes the feed, it feeds the full price feed. Prevention of diarrhea is the main factor in reducing the quality of piglets. There are many causes of diarrhea, mainly due to improper feeding and management and bacterial infection. K88-K99 bivalent genetically engineered vaccines can be injected 3 weeks prior to sow delivery, with good preventive effect. In addition, we must also do a good job in sanitation and regular disinfection. Relieving Weaning Stress In order to alleviate weaning stress, we must adopt a method of “carrying out the mother to keep the baby†to wean the baby and feed it on the fed feed for a period of time until the piglet is fully adapted to changes in the independent life and then transferred to other pig houses.