First, choose a good piglet. We should select Sanyuan pigs that are produced by crossbreeding of fine binary sows and Landrace White Pigs, Great White Pigs, Duroc and other lean boars. The weaned pigs will be weaned earlier, with strong physique, lively spirits, smooth fur, and eyes. God, flexible ears, normal breathing, responsiveness, long and compact body, high extremities, dorsal abdomen, wide hips, abundance of hindquarters, open chest, wide and deep chest, small head, wide weaning Heavy pigs are kept. Second, feed nutrition equipment. Feed costs account for 60-80% of the total cost of raising pigs. The quality of feed nutrition is directly related to the growth and feeding efficiency of pigs, and it mainly focuses on three aspects: 1. High-quality feed ingredients must be spoiled without deterioration, and the moisture content of cereals such as corn should not exceed 12%. 2, a reasonable processing and adjustment, improve palatability, improve digestibility, eliminate harmful factors. 3, scientific feed formula, according to the nutritional needs of pigs at different stages of growth, reasonable feed. Due to the high lean meat ratio of Sanyuan pigs, the requirements for feed conditions are also high, especially to fully meet the protein feed requirements. This is because the content of protein in pig lean meat reaches 20-21%, which is converted by the crude protein content in the feed. In addition to protein feeds, it is also necessary to satisfy the corresponding high-energy feeds. The feed digestion capacity was 3110 kcal/kg, and the crude protein was 16% in the early stage of fattening and 14% in the later stage. The approximate proportion of various types of feed is: Guzhen 50~70%, bran no more than 20%, pancake type 10~20%, animal protein 3~6%, stone powder 0.25~1%, salt 0.5%, Minerals, trace elements and multivitamins are suitable for dry feed and free drinking water, or mixed with semi-dry mixes. Third, the use of "high before the low" feeding methods. The growth pattern of Sanyuan pigs is: Before the body weight is 20~60kg, the main muscles and bones are mainly grown, and afterwards, deposition fat is the main component. According to this rule, the principle of free food intake and the supply of high-protein, high-energy feeds for the first time is adopted. In the 60-90kg stage, feeding should be appropriately limited, and about 80% of the free-feeding should be fed every day. During the restricted-food period, the pigs may not be fully fed and can be supplemented with green roughage; or the feed energy level can be appropriately reduced. Allow pigs to feed freely so as to increase the carcass lean body fat and reduce the cost of feeding. Fourth, scientific feeding and management methods 1, to achieve institutionalized management, which requires regular ration, less to Tim feeding. 2, the size of strong and weak pigs rational breeding group feeding, breeding density of about 1 per square meter, the general column to raise 10 to 20 head is appropriate. 3, do a good job in the cleanliness of the pig house, so that eating, sleeping, defecation "three positioning." 4, do a good job of cold work. The optimum temperature for ternary pig rearing is 16~22°C. If the temperature is too high or too low, the deposition of muscle protein and the consumption of fat feed will be affected. 5. Timely slaughter, excessive weight during slaughter, overweight of carcass, low feed conversion rate, and uneconomical; underweight, low slaughter rate is not economical. Therefore, Sanyuan pigs should be slaughtered with a weight of 90kg, which can achieve the goal of lean carcass and the most economical feeding cost. V. Pay attention to epidemic prevention, deworming and disinfection. The epidemic of communicable diseases is the greatest harm to pig production and must be given high priority. 1. Strictly implement the epidemic prevention and quarantine system and purchase the Miao pigs from the non-epidemic areas. After the Miao pigs are purchased, they shall be isolated and observed for 15 days before they are confirmed to be healthy before they can be polycultured with other pigs. 2. The piggery declined other people's unnecessary visits. 3, according to the provisions of immunization, usually injection of swine fever, W disease vaccine. 4, insecticide, Miaozhu buy one week later, can be used intramuscular injection of levamisole, in the finishing period should be regularly deworming 2 or 3 times, each time one and a half months, while the prevention and treatment of pig ectoparasitic disease. 5. Observe carefully and find timely treatment of sick pigs and timely treatment of dead pigs. For common diseases such as gastroenteritis, asthma, etc., timely prevention and treatment. 6, to keep the pig house clean and dry, fresh air, and regular disinfection.
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