First, insist on breeding hybrid pigs. The piglets produced by breeder boars such as Landrace, Duroc, Hampshire and other local sows are hybrid pigs, which have strong vitality, rapid growth and good feeding effect. Therefore, it is necessary to universally popularize the “three-ization†new technology of improved boar breeding, localization of sows, and hybridization of piglets.
Second, make full use of rural feed resources, scientific feed. We must make full use of various feed resources in rural areas, such as rice, sweet potatoes, barley, milk vetch, vegetables, and wild forage, so that we can achieve a reasonable mix. This will not only ensure nutritional needs, but also reduce the cost of raising pigs. It is estimated that pigs fed with the mixture have a feed to meat ratio of 2.8:1 or 3:1, whereas with a single corn or rice feed, pigs consume 6 to 7 kg of corn or rice for each kg of weight gain.
Third, the implementation of ecological pigs. In the traditional method of soil-raising pigs, the temperature and humidity in the pig house are natural, resulting in high temperature and high humidity in summer and autumn, and cold in winter, which cannot maximize the growth potential of pigs. In addition to the lack of attention to environmental hygiene and isolation and disinfection measures, pigs are susceptible to illness. Most peasant households neglect the principle of “prevention over treatment†and pay attention to the treatment of pig diseases. They prefer to spend “big†money on treatment and are unwilling to spend “small†money on epidemic prevention. As a result, farmers have suffered heavy losses. Therefore, in summer and autumn, the piggery is ventilated and ventilated, and ventilation facilities can be installed in the pig house to reduce the humidity and heatstroke. The vine plants outside the pig house are shaded and cooled to keep the air in the pig house fresh and suitable in temperature. In the winter, plastic film greenhouses will be used to cultivate new technologies, and the microclimate of pig houses will be continuously improved to create a good ecological environment for pig growth and development. At the same time, we must adhere to a strict disinfection system and constantly clean the environment. Conditional piggery installations prevent the biting of mosquitoes and flies and reduce the occurrence and spread of epidemics. Regularly do a good job of insecticide and epidemic vaccination and implement the principle of "prevention from treatment". Strict control of swine fever, swine erysipelas, swine plague and paratyphoid infections, reduce mortality, improve survival and slaughter rate.
Fourth, change the shelf to fatten a straight line fattening. The traditional hanging shelf fattening is to divide the pig fattening period into several stages, and use the crude and coarse combination to carry out fattening according to different stages. This method has a single feed, nutrition is not comprehensive, can not meet the growth needs of pigs, pig growth is slow, long cycle, slaughter rate is low. If the piglets after weaning are switched to the fat pigs before sale, full-price compound feed and planted pasture-fed pigs have been used, and the linear fattening that gradually increases the nutritional level according to the increase of the age will effectively shorten the fattening period and improve the slaughter rate. rate.
Fifth, provide adequate drinking water. Water is an important component in animals. Metabolism and various biochemical reactions in the body must be performed with the participation of water. Water shortage affects the appetite, digestion and normal growth of pigs and reduces the utilization of feed. Therefore, it is very important to provide sufficient drinking water. The "free drinking water" method is generally used to provide pigs with clean drinking water. In particular, the hot summer water can not cut off water, and use the cold water of the well to help lower body temperature.
Six, the rational use of feed additives. Feed additives contain all kinds of essential amino acids, minerals, trace elements, vitamins, auxins, etc., although the amount is small, but it has a great effect on the growth of pigs, so the correct and reasonable use of feed additives is very necessary.
VII. Self-cultivation. The adoption of self-cultivated pigs, self-cultivation of cross-breed piglets, and self-cultivation of commercial pigs without purchasing piglets are beneficial to epidemic prevention, increase the survival rate of piglets, and help reduce the cost of raising pigs.
Eight, the implementation of high-density pigs. In the winter of 0.8 m2 the pig house raises a fattening pig and in summer 1 m2 pig house raises a finishing pig. Due to intensive, provincial pig houses, low investment in fixed assets, high density of pigs not only built fewer circles, the cost is low, but also the finishing pigs compete for food, there is no activity space, when they are full, they fall asleep, love long meat, increase weight quickly, and shorten During the feeding period, the cost of feeding is reduced.
Nine, timely slaughter and slaughter. After over 90 kg of fattening pigs, the rate of daily weight gain was significantly slowed down, and fat deposition was the main factor. Therefore, the more expensive it was, the more it was fed, the more fat was increased, and it was not good for sales; the slaughter rate was less than 90 kg. Although the feed utilization rate was high, It is economically uneconomical to have a low meat yield due to the small body weight. Therefore, 90-120 kilograms of finishing pigs are the most suitable for finishing pigs.
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