Skills of raising pigs in winter

The external climate is cold in winter, if we do not strengthen the management, it will slow down the growth rate of pigs or get sick, which will have a great impact on pig production. In winter feeding and management, the following four points should be achieved. First, renovate the pigsty. Before the cold winter comes, the piggery should be fully overhauled and maintained, and the damaged pens, walls and ceilings should be repaired. In order to increase the effect of heat preservation, open pig houses should build plastic insulation sheds, block windows and redundant vents, and hang cotton curtains and straw curtains at the door to prevent cold wind from entering. Keep the house clean, dry and fresh. In order to keep warm in winter, it will reduce the intensity of ventilation and lead to excessive humidity in the house and excessive retention of harmful gases. Too high humidity and too much harmful gas in the house will cause respiratory diseases and other diseases in pigs, so we should remove the feces frequently, maintain a good sanitary environment, reduce the humidity in the house and reduce the concentration of harmful gases produced by the accumulation of feces. Under the premise of maintaining the temperature, increase the ventilation volume, maximize the fresh air in the house, and reduce the incidence of respiratory diseases caused by harmful gases. Third, raise the temperature in the house. Too low temperature will bring serious cold stress to pigs. Cold stress will reduce the health level of pigs and induce some diseases, especially on pigs. The cold environment will aggravate diarrhea and increase the mortality of pigs. There are many ways to increase the temperature of the house, such as using hot blast stove, coal stove, heating and other equipment to provide heat source to increase the temperature of the house, or appropriately increase the feeding density, rely on the temperature of the pig herd to increase the temperature (suitable for fattening pigs) and so on. Fourth, feed high-quality diets and improve the feeding mode. In the cold winter, it is particularly important to provide nutritious diets for pigs. Farmers can reasonably choose the premix suitable for pigs of all ages according to the weight of pigs raised in their pig farms. Cold feed has a greater impact on pigs in winter, try to feed dry powder, or use warm water to mix feed, conditions should provide clean warm water for pigs to drink freely. In winter, the days are short and the nights are long, and the pigs spend a long time on an empty stomach at night. They should be fed an additional night food at night so that pigs can get enough nutritious and comprehensive diets, so as to improve daily gain and shorten the feeding cycle. 1. Thermal insulation facilities should be installed in the house in cold winter, especially in the delivery room and nursery. The delivery room should be kept at about 28 degrees, and the temperature difference between day and night should not be more than 3 degrees. Large temperature differences can easily cause piglets to have diarrhea, so managers must check the temperature at night. Boiler-burning personnel are the most important and must not be lazy at night. In addition, the thermometer should be placed approximately parallel to the herd of pigs, especially pay attention to the thermometer must not be placed near the heating equipment, if the temperature measured in that way is not correct. Usually, you can judge the cold heat by observing the state of the pig herd. When the pig herd is serious, it will remind you that you should heat it up! 2. To increase the feeding density in winter, the number of pigs in the fattening pigsty without heating facilities can be increased by 1 × 3 ~ 1 × 2, so that the pigs warm each other with body temperature, and the more heat dissipation of pigs plays a certain role in raising the temperature of the house. 3. The greater the humidity of the dry pig house, the colder the pig will feel, which will help to accelerate the reproduction of bacteria and easily cause skin diseases, respiratory diseases, infectious diseases and parasitic diseases of pigs. First of all, pigs should be allowed to defecate at a fixed point, reduce or avoid water flushing circles, increase the number of dry feces, and choose reasonable and effective disinfectants to appropriately reduce the number of disinfection. 4. Properly increase the content of energy feed in feed. 5. Prevent the invasion of thieves and reduce the occurrence of swine flu. -if the delivery room should be kept at about 28 degrees, the feed intake of sows must be reduced. It would be nice to reach 15 degrees. In theory, 20 degrees is best.