Ways to improve the quality of Miao Pig

Piglets have imperfect digestive function, hypoplasia of enzyme system, lack of innate immunity, poor digestion and disease resistance, easy to infection and affect growth and development.

Generally speaking, the newborn piglets have strong resistance, rapid growth and development, and this characteristic has a strong heredity. Therefore, the litter selection must be carried out when the sows are selected, and the piglets with good development, many nipples and neat arrangement and good shape must be selected from the litter for breeding. In addition, in the same breed, large sows can make better use of nutrients in feed during pregnancy to ensure the normal development of the fetus and lay a good foundation for the production of high-quality piglets.

The use of heterosis boar has a great impact on the quality of piglets, high-quality boars can be used to improve the quality of piglets. Boars should choose exotic boars with large size, fast growth and high lean meat percentage as breeding boars.

Strengthen the feeding of sows during pregnancy according to the characteristics of different pregnancy stages of sows, the corresponding feeding methods should be adopted to ensure that sows get sufficient nutrients from diets, such as adding 5880g concentrate of Huamei sows to meet the needs of fetal growth and development. but don't make the sows too obese. In the management, we should pay attention to proper exercise to enhance the physique of sows and prevent abortion, so as to make the quality of piglets higher.

Strengthening the feeding of sow milk during lactation 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 milk yield of sows is closely related to the quality of piglets. The main way to improve the milk yield of sows is to strengthen feeding management. When adding Huamei sow concentrate 589 kg to lactating sows, we should pay attention to the appropriate level of energy and protein. The digestible energy per kg diet should be higher than 11.72MJ/kg, and the level of crude protein should not be less than 13%. In terms of management, the amount of post-natal grain should be increased gradually from less to more, and green fodder can be replenished at night where conditions permit.

Strengthen nursing and heat preservation of piglets to cultivate piglets with thin skin, sparse back hair and poor heat preservation ability. in addition, piglets can not use milk fat and milk protein for oxidation heating within 24 hours after birth, and the main heat source depends on glycogen in the body and lactose in breast milk. Therefore, piglets are easy to die of cold, and heat preservation is one of the important measures to improve the quality of piglets. The suitable temperature for breeding piglets is: 1Mel 3-day-old 34MUR 30 ℃. 4Mel 7 days old is 30 ℃ 28 ℃, 15-30 days old 25 Mel 22 ℃, and remains about 18 Mel 20% ℃ to 60 days old. Especially before 10 days old, piglets lack the ability to adjust and adapt to temperature difference, so they must be kept warm artificially.

Piglets born on full colostrum can not acquire the ability of innate immunity, which can only be obtained by eating colostrum. Therefore, the earlier the piglets eat colostrum, the stronger the resistance, at the same time, it is also conducive to the recovery of body temperature. Piglets are usually given colostrum within half an hour after birth.

The amount of iron stored in piglets was 30-50mg at birth. Normal growth of piglets requires iron 7-8mg per day. In this way, when you start eating food at the age of 3 weeks, you need a total of 200mg iron. However, the content of iron in breast milk is very low (0.2mg~100g), and the iron obtained from milk of piglets is far from enough to meet their needs. Therefore, piglets must be supplemented with iron after birth. 1-2mL, a mixture of iron and cobalt dextran, can be injected intramuscularly on 3 days after birth.

The early supplemental breast milk decreased gradually after reaching the peak at 4 weeks. Single breast milk could not meet the nutritional needs of piglets. 7 days after birth, corn, soybeans or Huamei 531 suckling pig pellets were used to induce food.

The prevention of dysentery is the main factor to reduce the quality of piglets. There are many causes of diarrhea, mainly due to improper feeding and management and bacterial infection. K88-K99 bivalent genetic engineering vaccine can be injected into sows 3 weeks before parturition, and the preventive effect is good. In addition, it is also necessary to do a good job in enclosure hygiene and regular disinfection.

Reduce weaning stress in order to reduce weaning stress, we should adopt the method of "driving the mother and keeping the baby" to weaning, continue to feed with supplementary feed for a period of time, and then transfer to other pig houses after piglets fully adapt to the changes of independent life.