First, insulation, cold, reasonable ventilation In winter, the climate is cold, and the temperature required inside the home is very different from the outside air temperature. It is necessary to ventilate the air and maintain the indoor temperature. This is the main problem that should be solved in winter. The chicken house requires good cold resistance and meets the winter insulation requirements. Prevention of chilling caused by chilling caused by chicks. Sherwin’s “higher†principle: higher winds, lower temperatures, and higher snowfall; higher nighttime than during the day; higher heights after two days of immunization; higher incidence at the time of onset; Bigger is higher. In short, we must be flexible and "see the chicken to act." While ventilating and ventilating, be careful not to cause the temperature in the house to be ups and downs, and to prevent the stress caused by the excessive temperature difference from causing the disease. It is advisable to use the ventilation outlet more than 1.5 meters above the back of the chicken. When the temperature drops sharply and the cold and heat insulation work cannot keep up, it is often easy to make the broiler suffer from exogenous cold and cough, sneezing, tracheal rales, dyspnea and other respiratory diseases characterized by symptoms. Therefore, the breeder must master the changes in the climate and do a good job in cold insulation. The hen house should be maintained to prevent thieves and drafts from invading the flock. The broilers raised on the plains must be thickened with litter and use litter to increase the room temperature. Always change the litter, open the window ventilation at noon. In general, ventilation is started at 6 days of age, and as the age increases, ventilation is increased so that the birds have enough oxygen. Second, strengthen biosafety, prevention and treatment First of all, chickens should be introduced from healthy chicken farms to prevent vertical transmission of pathogens. Second, we should create a good breeding environment, including the chicken farm environment and home environment. The general environment means that the site should be selected as far away as possible from other chicken farms, with open terrain, convenient transportation, and no noise. The home environment refers to good insulation and ventilation conditions, with a separate storage room, disinfection pool, locker room, tool room and so on. Keeping utensils and sterilizers are strictly differentiated and regularly sterilized to prevent horizontal transmission of diseases. At the same time, the occurrence of disease outbreaks in neighboring chicken farms and in the area are regularly monitored and preventive measures are taken. Regularly monitor the health condition of the flocks in this farm and handle the epidemic in time. Third, adhere to the principle of sterilizing chickens, eradicating rodents, preventing rodent-transmitted diseases, burying dead chickens, and isolating chickens from healthy chickens. Establish a strict health and disease prevention system, do a good job in environmental sanitation, strictly control the entry of foreign workers and vehicles into the production field, formulate a scientific and effective disinfection system, strengthen the monitoring and purification of breeding chickens, drug control, and immunity. Vaccination against vaccination must be conducted in strict accordance with immunization procedures. Always use some medicines for disease prevention. The sheds are sterilized on a regular basis. The empty sheds are best treated with formalin fumigation. High quality non-toxic disinfectants should be used for spray disinfection. The chickens are sterilized on a regular basis and are generally implemented with spray disinfection and drinking water disinfection. Third, strengthen feeding and management, grasp the details Before hatching, strict scouring, disinfection and fumigation of the young house are carried out. Equipment, clothes, houses, etc. are thoroughly cleaned. Because of the physiological characteristics of broiler chickens, after entering the house, you should start eating after drinking water first, especially for chickens that are transported over long distances, which can promptly supplement the body's lost water. For chickens that are unwilling to move, measures of forced feeding should be used to artificially drive, but care should be taken to avoid the phenomenon of crushing. The illumination time should be shortened and should not be prolonged. The location, time and intensity of the light source should not be changed at will, so that the illumination in the house can be uniform. Reduce stress response. Trans-groups, vaccination, and weather mutations are an unpleasant stimulus to chickens and can often cause morbidity. Avoid unnecessary catching and disturbing as much as possible during feeding. Anticompetitive drugs can be given for prevention before transfer and vaccination, and cold stress caused by temperature drop can be handled well. Choose padding. Use fresh, dry, soft, mildew-free, absorbent material, preferably wood shavings. When used, it should be used skillfully. It is better to lay the mat at one time. Do not add it sporadically. Turn it around so that it does not become hard, does not catch the felt, does not cling, and stays soft. Control drinking water. To meet the needs of water, the general drinking water is 2 to 3 times the amount of material consumed, but not much water supply, because the water will increase the humidity of the litter, do not wash vegetables in the house, do not store water in the house to prevent litter water absorption, Prevent running water when using a hose. Preservation tubes are swabs with disposable virus sampling tubes to collect DNA tests for disposable nasal flocking sterile medical transport. swabs with disposable virus sampling tubes , to collect DNA tests for disposable nasal flocking sterile medical transport. Jiangsu iiLO Biotechnology Co., Ltd. , https://www.iilogene.com