2. Popularize and apply three high-tech feeds: suckling pig feed, piglet feed, concentrated feed or compound feed, and iron supplementation for newborn piglets to improve the early growth rate of piglets.
1. Early feeding technology of suckling pigs. A key point of piglet breeding is early feeding. Piglets are fed with suckling pig feed at the age of 7 days, and gradually used before and after weaning, which can effectively improve the early growth rate of piglets and lay a good foundation for fattening after weaning.
2. Iron supplementation technology for newborn piglets. Iron supplementation in newborn piglets can significantly improve weaning head weight and late growth rate of piglets. According to our experimental data and other related reports, under the same conditions, the weaning head weight of piglets supplemented with iron within 3-5 days after birth, especially after injecting iron-rich iron-selenium mixture, is higher than that of those who do not supplement iron 1-3 kg.
3. Farms or specialized households with good economic conditions should promote the use of full-price ingredients. If the economic conditions are not enough, we can popularize the technology of adding concentrated feed to rice (brown rice, corn or other self-energy feed), improve the utilization rate of compound feed, improve the level of pig raising, promote the growth of pigs, and reduce the feed reward.
Third, strengthen feeding management In the feeding management of growing and finishing pigs, we must adhere to four reforms. One is to change the single feed into batch (mixing). The second is to change clinker into feed. Except soybeans, raw bean cakes, potatoes, etc. , should be eaten raw. Third, dilute feeding is dry feeding or wet mixed feeding. The fourth is to change the hanger into a straight line (so-called one-stop) to gain weight. The so-called rack is a fattening method for pigs in the middle stage of growth and fattening, and it is mainly fed with green and coarse materials in the later stage. This method is extremely unfavorable to the growth and development of shelf pigs, because the muscle growth of shelf pigs is the fastest at this stage, and the hanger causes insufficient nutrition and muscle growth at this stage. After late feeding, too much fat was deposited, which greatly reduced the lean meat rate of pigs. Therefore, the straight-line fattening method should be adopted in the breeding of hybrid pigs, that is, from weaning of piglets to slaughter of fat pigs, different feeding standard should be adopted according to different growth stages, and compound feed should be used throughout the whole process. This method has the advantages of fast weight gain, short fattening period, fast turnover, high slaughter rate, high feed utilization rate and slaughter rate, but it needs more concentrated feed.
Four, the implementation of comprehensive prevention and control technology to prevent diseases is the guarantee of ternary pig production. There are many diseases in pigs, so we must adhere to the principle that prevention is more important than treatment. The key point is to do a good job in the prevention and treatment of epidemic diseases that have a devastating impact on production. Pig producers should formulate comprehensive immunization programs according to the epidemic characteristics of diseases in this area and do regular disinfection.