First, the harm of cold in winter on pigs Recently, some pig farmers have responded that the pigs don’t look good, the coat is not bright, the skin is not red, and the growth rate is reduced. It is doubtful whether the feed quality is better than before. In fact, this is not a matter of feed quality, it is the cause of the climate. Now in winter, temperatures are low, and low temperatures have a significant adverse effect on the health and productivity of pigs. 1. Effect of low temperature on pig health and survival rate: Low temperature can lead to reduced pig disease resistance and prone to infectious diseases. At the same time, due to reduced resistance of pig respiratory tract and digestive tract, bronchitis, bronchitis, and gastroenteritis often occur. Such as low temperature and high humidity also often cause muscle rheumatism, arthritis and so on. The effect of low temperature on piglets is even more serious. Under low temperature conditions, the proportion of mechanical death of piglets after birth is greatly increased, such as frozen death, crushed death, starvation, death (pneumonia, diarrhea, malnutrition), piglet health and growth. Both will be affected. 2. Effect of low temperature on digestibility of pig feed: Feed digestibility is directly proportional to its residence time in the digestive tract of the pig. The longer the feed stays in the digestive tract of the pig, the higher the digestibility of the feed; on the contrary, the digestibility is lower. In cold environments, pigs have increased gastrointestinal motility, short food stay in the digestive tract, and reduced digestibility. 3. Effect of low temperature on pig weight gain and feed utilization: In the low temperature environment, the pig's heat dissipation is greatly increased. In order to maintain a constant body temperature, the body must speed up the body metabolism to increase the body's heat production, so that the need for pig maintenance is also significantly increased. Although the feed intake of pigs increased, the energy used for growth was still limited, growth and weight gain decreased, and feed utilization was significantly reduced. 4. Effect of low temperature on fertility of breeding pigs: Under low temperature and cold stress, the fertility of breeding pigs declines. The performance is low boar sexual desire, reduced sperm production and sperm vigor, and poor seeding ability; delayed or estrus estrus in reserve and empty sows; increased stillbirth and miscarriage in pregnant sows; increased proportion of dystocia in laboring sows; Prolonged time, increased number of stillbirths; lactating sows exhibit insufficient lactation and poor piglet health. 5, the impact of low temperature on the day-to-day management of pig farms: In the winter ice and snow environment, is not conducive to the pigs to the group and a variety of transport, reduce the effectiveness of disinfection. It can be seen that maintaining the proper ambient temperature in winter pighouses is an important factor in ensuring the normal growth and health of pigs, increasing feed conversion rates, reducing production costs, and improving the economic efficiency of pig raising. Therefore, in winter pig farming, the use of effective feeding and management measures to improve the condition of the pig house and create a suitable ambient temperature for the pig is particularly important. Second, winter barn insulation measures 1, to strengthen the piggery warm: before the advent of winter, we must prepare enough heating energy, timely maintenance of the piggery, repair windows and doors, the wall and the roof of the air vent to block, the piggery door windows and doors to prevent the intrusion of thieves Pig house. For a semi-open pig house, a plastic film can be used to cover the playground so that the pig house can form a covered and sealed whole, which can not only keep warm but also can improve the environmental conditions of the pig house, but should be properly ventilated to eliminate the house. Water vapor and dirty air. 2, plus insulation: closed pigs can increase the ceiling, the height of the ceiling should be 1.8-2 meters away from the ground, sheds add sawdust or chaff, the ground is laying soft grass for the pig lying. Every two days in the ceiling, a vent must be left to vent ammonia and moisture. 3. Laying mats: Laying a layer of mats or plank beds on the ground, placing a 150-200 watt infrared heat lamp on the floor 35-40 cm high to increase warmth. In addition, 10 cm thick sawdust can be placed in the pigsty, starter can be added, fermentation can be started in a few days, the temperature can reach 35°C, and the pig house can be kept warm. 4. Keep dry: The higher the humidity in the pig house, the colder the pig feels and the more likely to cause skin diseases, respiratory diseases, infectious diseases, and parasitic diseases. In addition to keeping the floor mats and diligently changing the hay, the pens should also let the pigs develop the habit of defecate excrement and urine, keep the pigs lying in a clean and dry place, and provide them with a comfortable living environment to promote growth and health. 5. Appropriate ventilation: The cold weather barn has been in a relatively closed state for a long period of time. The manure should be cleaned regularly to maintain a good sanitation environment, reduce the humidity in the house, and reduce the concentration of harmful gases. One is to open the ventilation window for ventilation at regular intervals. Ventilation and ventilation time should not be too long, in order to discharge harmful gases, closed the window in time. The second is to control the flow of cold air. The cold air entering the pig house must control the flow and should not be blown directly onto the pig. The third is that the insulation and ventilation should adopt more flexible adjustment methods. Both should be taken into consideration and should be insulated and then re-vented. 6, equipment, heating: Add livestock and poultry air conditioning, hot stove, plumbing or floor heating, insulation boxes and heat lamps and other heating equipment to maintain the temperature and humidity environment or local environment, reduce the temperature difference between day and night. Air Filter,Air Compressor Filter,Air Compressor Air Filter,Oil Water Separator For Air Compressor Hangzhou Zhongju air separation equipment manufacturing Co., Ltd , https://www.hzzjkfzz.com