There are ways to increase leanness
At present, the prices of fat-type pigs are difficult to sell and the price of lean-type pigs is high. Therefore, it is an inevitable trend to vigorously promote the feeding of lean meat pigs at present and in the future. The following methods are used to increase the lean meat percentage of pigs: 1. Raise lean pigs. Whether pigs can grow long lean meat mainly depends on pig breeds. Practice has proved that using binary or three-way hybrid pigs, feed remuneration, fast weight gain, lean meat, lean meat accounted for more than 60% of the carcass, up to 25 percentage points higher than the local fat-type pigs, so the economic benefits of breeding. Second, master the law to limit rearing. The entire growth and development of lean-type pigs is 40-60 kilograms before. It is mainly composed of long muscles and bones, and 60 kilograms is mainly composed of deposited fat. According to calculations, 30-60 kilograms of pigs have fat deposition days of 30-120 grams per day; 60-90 kilograms of 120-350 grams. In the rearing method, we should make full use of the characteristics of the early long lean meat to take the law to restrict feeding, that is, before the 60 kg weight can be fed dry concentrate feed or wet mix. For formulating full-priced feed, the formula is: corn 59%, bean cake 15%, rice bran 14.5%, wheat bran 10%, stone powder 0.8%, bone meal 0.4%, salt 0.3%, allowing the pig to freely eat and drink; after 60 kg Should be limited feeding, feeding 3 times a day, each time 80% full. Feeding should be done regularly, quantitatively, enough for drinking water, and feeds with high protein content and green feed should be fed at the same time. Third, timely slaughter listing. Whether the slaughter is timely or not is directly related to the level of lean meat and economic benefits. The slaughter is good when the weight of the binary lean meat type pigs is 80-90 kilograms and the weight of the three-fold lean meat type pigs is 90-100 kilograms, because the lean meat percentage, the slaughter weight, the growth rate, the feed reward, etc. Comprehensive economic indicators are ideal. China Agricultural Network Editor
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