In the recent past, the price of pork has remained high. Apart from the increase in feed prices, the rapid decline in the number of households in traditional households is also a major factor. At this time, the scale of intensive pig production is particularly important, economic efficiency is good, its breeding technology, business management and management requirements are very high, today this newspaper invited the scientific and technological consultants to make a detailed description of this issue. At present, China's pig-breeding industry is in a period of rapid transformation. Traditional decentralized aquaculture has rapidly declined, and large-scale, intensive farming has developed rapidly. If scaled-up intensive farming causes problems in technology and management, it will cause major economic losses to the owners. Adhering to the so-called modest scale of the so-called moderate scale means that the number of breeding heads should be adapted to the owner's economic strength and technical management level. Without scale, overall profitability is limited, blindly greedy development, management and technology can not keep up, will affect the overall breeding efficiency, leading to failure of breeding. Therefore, the owners must determine their development goals according to their own economic strength and experience, changes in market demand and technical conditions, and plan well, from small to large, and gradually develop. Large households mainly, professional breeding in the development of large-scale breeding process, should be based on professional breeding large households, the implementation of professional breeding. Only professionalism can reduce and avoid the economic losses caused by cross-infection among diseases of different breeds. Emphasis on environmental protection, the implementation of the scale of human and livestock breeding, a large number of pig farm waste pollution of the environment is becoming increasingly serious, not only affects the living environment of people, but also directly affect the health of the pigs themselves. Therefore, it is best to keep the farm away from the village and choose to farm in the fields and forests that can digest the excreta nearby, and implement ecological farming in the form of pig-grain, pig-fruit, and pig-vegetable as far as possible. Large-scale pig farms should have sewage treatment equipment to process pig manure into Organic Fertilizer. The adoption of new technologies to breed high-yield, high-quality, high-efficiency products depends on science and technology and on the one hand, management and management. Good breeds are the basis for achieving high yield, high quality and high efficiency in aquaculture production. Feed and nutrition are the basis for achieving high yield, high quality and high efficiency in raising pigs. Good health care is the guarantee for safe pig production. Good environmental control is the realization of high quality and high pig production. The important conditions of benefit. 1, the use of improved varieties. Pigs should have a clear market goal. If the cultivated hogs are sold directly to Shanghai and coastal economically developed areas, they should raise lean species abroad, and purchase breeding pigs from breeding farms such as Yorkshire and Changbai; if For local sales only, local sows should be reared to allow them to mate with lean, fine breeder boars to produce binary or ternary commercial pigs for better economic returns. When purchasing good breeds of pigs, the varieties should be pure, and the production performance should be better. Do not blindly pursue generations. With good breed pigs, we should also pay attention to the matching between different male and female pigs. The current production of three-way hybrid pigs is the main form of pig production in China. According to the variety of hybrid parental species, it can be divided into internal ternaries (the female parent is the local thoroughbred, the boar is the foreign lean type thoroughbred) and the external ternary (the male and the female are both lean type). The former has good reproductive performance and has a lower feed requirement. The latter produces fast and has a high lean meat percentage. According to market requirements and their own conditions to determine whether to raise outside the three yuan or three yuan. Areas with particularly difficult feed resources can continue to develop “three changes†(sows improved local sows, boar exotic breeds, and fat pig hybrid generations) to raise pigs, not necessarily to promote three-way hybrids, not to overemphasize high lean meat rate. 2, must meet the nutritional needs. Any lack or deficiency of any nutrient will affect pig growth and reduce feed efficiency. The lack of long-term will reduce the pig's immunity, make it easy to get sick, and even die, directly affecting the benefits of pig production. Only by making full use of various feed ingredients and formulating full-price feeds for pigs according to the nutritional needs of various types of pigs, can pigs grow fast, have high feed conversion rates, and receive good breeding results. 3. Health care is the guarantee of safe production. Once an epidemic occurs on a large-scale pig farm, it often causes major economic losses to the owner. Large-scale pig farms should do daily health and pig health care. It is necessary to change the traditional way of feeding and implement self-cultivation and self-support. Self-cultivation and self-support can reduce frequent introduction, effectively reduce the cost of money to buy a disease, and implement all-in and all-out ways to effectively cut off the spread of pathogens. Large-scale pig farms must establish and improve the sanitation and epidemic prevention management and disinfection system. Disinfectant sites should be set up at the entrance and the door of pig houses. It is necessary to regularly and irregularly disinfect the whole site. It is advisable to maintain it 2-3 times a week; Targeted immunization procedures, in accordance with the requirements of major infectious diseases in time to fight the epidemic prevention needle; the occurrence of suspected infectious diseases should be immediately isolated pigs, and timely treatment of sick pigs. Poorly treated pigs should be eliminated in time. 4, control the pig's living environment. Newborn pigs feel most comfortable at 34°C-35°C. Growing pigs with a body weight of about 50 kg had a growth rate at 5°C that was equivalent to 40% at 20°C. Traditional pigs do not pay attention to temperature control, the result can only be "one year pig raising for six months." In addition to temperature, humidity, air conditions in the environment, dust in the air, scenery, etc. have a direct impact on the health of pigs. Therefore, large-scale pig farms should pay attention to environmental control. From the site selection of the construction site, construction of pig houses to internal facilities and daily management, environmental conditions should be taken into consideration to allow pigs to live comfortably in an environment provided by humans. (Prof. Zhao Ruilian, Researcher of Institute of Animal Husbandry, Provincial Academy of Agricultural Sciences)
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