Variety Selection The three-way hybrid pigs produced by the excellent local sows and exotic purebred boars are selected to be characterized by a longer body size, a slightly arched back, flat abdomen, plump legs, strong limbs, and strong physique. In order to strengthen the growth and management of pigs, the need for various nutrients is different, and scientific feeding should be conducted separately. Before the lean pigs weigh 40-60 kilograms, they are mainly long musculoskeletal and can feed dry full-priced pellets or wet mixes. Such as self-provisioned full-priced feed, the formula is available: corn 51.4%, soybean cake (15%), rice bran 15%, barley 15%, calcium powder 0.8%, yeast powder 2%, salt 0.4%, additive 0.4%, fully mix Let the pig feed freely and give it water. The weight of the pig is 60 kg. After depositing fat, it is necessary to limit the feed intake at this stage. It is sufficient to eat 80% of the feed each time, and it can also be used in combination with some low-energy feed to reduce the energy contained in the feed and save the feed. Reduce fat deposition and increase lean meat percentage. Timely slaughter Sanyuan pigs are generally slaughtered at 80-90 kg. This is because the overall economic indicators such as the lean meat ratio, slaughtering weight, growth rate, and feed rewards have reached an ideal level, which is the best time to slaughter the market. Early slaughter, pigs have not yet achieved long-term slaughter is a loss, late slaughter is one more consumption of feed, and second, a substantial increase in fat, fat pigs can not sell a good price, so farmers must grasp the timely slaughter listing.