Plastic sheds raise broilers, which are easier to manage in the spring, summer, and autumn and are more difficult to manage in the winter. 24 hours before hatching, the temperature and humidity in the shed were adjusted so that the temperature in the broiler area reached 35°C and the humidity reached 65% to 70%. The initial raising of greenhouses should be warmed up 48 hours in advance and the ground moisture in the shed should be eliminated. 1, temperature. Chickens in different growth stages have different temperature requirements, but they are basically 1 to 3 days old at 35°C, 1 week old at 35 to 32°C, 2 weeks old at 32 to 29°C, 3 weeks old at 29 to 27°C, and 4 weeks old at 27～ 24°C, 21-18°C after 4 weeks of age. It is worth noting that the decrease in temperature is a slow process, and its adjustment is based on the comfort of chickens. To warm the general use of the ground furnace, which must be prepared before the hatching, coal stoves can also be used to warm, but to prevent gas poisoning. The temperature in the shed should be basically stable every day, the outside temperature in winter is low, and the shed is difficult to keep warm. 2, according to the first. After 48 hours of continuous lighting, the intensity is about 25 watts per 10 square meters of light, followed by 23 hours of light, 21 days of age, gradually changed to 16 hours of light, 14 hours after the night can take the lights for 1 hour , Close the lamp for 2 hours. Light bulbs can be installed along the shed, one lampholder every 5 to 8 meters, and bulbs of different power and color are installed according to production needs. 3, drinking water and feeding. Unless the need for immunity, generally should continue to water, chickens into the young, first give warm water, add 5% brown sugar and electrolytic multidimensional. 2 to 4 hours after drinking, spread the material on the tray. In the first week, feed 6 times a day. It is advisable to eat basically every 25 to 30 minutes. In the second week, feed troughs or drums were used, feeding 4 to 5 times a day. After the third week, they were fed 3 times a day to ensure that the material buckets were continuously fed but had less material. Every day, drinkers should be cleaned once in the morning and at night. The buckets should be kept clean, and chickens should be gradually replaced at different times. 4, ventilation. Ventilation can meet the oxygen demand of broilers and discharge harmful gases in time. In winter, it is necessary to solve the contradiction between heat preservation and ventilation. Insulation should not neglect ventilation, and at the same time, it must prevent intrusion of thieves and direct wind blows the chicken body. 5, humidity. The humidity in the booth should not be too large. From 0 to 21 days of age, 65% to 70% is better. Later it is changed to 60% to 65%. However, broilers are raised in plastic greenhouses, and the humidity is generally difficult to control. 6, environmental health. Outside the shed to prevent outsiders from visiting. Remove excrement in time, keep chicken utensils clean and the breeder's own hygiene. Can be isolated in a corner of the shed, isolated feeding for diseased chickens, dead chicken sealed with a plastic bag out of the greenhouse, fixed-point anatomical diagnosis and away from the shed to destroy. 7. Vaccination. The vaccination program and time should be based on the specific circumstances of each place. The following is for reference only. 7 days old vaccination Newcastle disease IV seedlings eye drops. 14-day-old, 25-day-old infectious bursal disease virus seedlings drinking water. 28 days old Newcastle disease IV line seedlings drinking water. At the same time with inactivated vaccine injection better. Vaccination is a stress on chickens. Therefore, during the epidemic, the brooding temperature should be appropriately increased, and anti-stress drugs or multidimensional drugs should be added to drinking water for two days before and after vaccination. The vaccine dilution water is preferably cold water. When immunized with drinking water, appropriate amount of skim milk powder is added to the water to prolong the effective time of the vaccine. 2 to 4 hours before the immunization of drinking water should be properly stopped, and increase the number of drinking fountains, to ensure that 2/3 of the chicken can drink to the water and drink within 2 to 3 hours. Eye drops vaccinated to achieve vaccine inhalation.
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