The weather in spring is changeable. If a cold current is encountered, the chicken will easily catch cold, produce cold stress, cause the chicken to lay eggs, reduce the feed conversion ratio, and even cause respiratory diseases. If shepherd's temperature is too low, she will also suffer frostbite of chicken cocks, minced meat and chicken feet, resulting in production shutdowns and other adverse consequences. The severity of the consequences depends on whether or not the measures taken are appropriate. Keep in mind that the cold-insulated chickens in the house are often huddled in a cold hen house, and they decompose the body fat to produce a large amount of heat to withstand the cold, or increase the amount of feed to self-adjust. This not only reduces physical fitness, but also reduces the feed conversion rate, which is uneconomical. Therefore, doing a good job of keeping cold insulation in chicken coops is a top priority for feeding and management. To increase the heat insulation layer of the chicken house, the heat loss of the ceiling of the chicken house accounts for more than 60% of the total heat loss in the house. Therefore, the thickness of the heat insulation layer of the roof and the heat insulation material play a decisive role in the insulation of the chicken house. The thermal conductivity of the northern wall is also very important. If the roof of the chicken house and the northern wall are found frosted, the insulation sheds should be increased. The insulation layer should be increased with plastic sheets or linoleum paper to block the north window. It can also be in the main wind direction. From a suitable place in the house, a wind shield is provided to ease the cold wind. When the temperature is low, reduce the fan speed and reduce the air circulation. Increase the amount of feed for high-energy feeds to increase properly to ensure growth and egg production without being affected by low temperatures. The chickens that produce the same kind of condition show different energy requirements at different temperatures. As the temperature rises or falls, the flock can gradually adjust its feed intake to meet the needs of heat energy. If the cold weather arrives and the temperature drops suddenly, the chicken itself cannot adjust the feed intake all at once and it will cause great stress. Therefore, spring chickens should pay attention to meteorological forecast and strive to increase the amount of feed by 10 to 20 grams each for 1-2 days before the cold current. For 3-5 days, chickens can get more calories to cope with. The lack of thermal energy when temperatures drop. When the cold current passes and the temperature rises, the original amount of feed is immediately restored so that it will not be too fat. When the temperature drops gradually, for every 3°C drop, the chicken should be fed with about 5 grams so that the chicken gets enough calories to maintain body temperature and yield levels. At the same time, special attention must be paid to the quality and quantity of various amino acids. Appropriate ventilation for ventilation In spring, in order to keep warm, windows are often closed and closed tightly, and ventilation and ventilation are not carried out. As a result, the air in the house may be polluted, the humidity may increase, and the bedding may be wet. Light people have unfavorable effects on the growth of chicken feathers and feet. In severe cases, due to deterioration of the air environment, ammonia, hydrogen sulfide, carbon dioxide, methane, skatole, etc. are doubled. Dust and microorganisms surpass the hygiene standards of chicken houses and cause respiratory problems in chickens. Diseases, ascites in broilers, etc., caused economic losses. Therefore, you must not simply for the insulation, ventilation and ventilation should be maintained within the house a certain speed, to meet the chicken house health standards.
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