1. The chicken house construction chicken house should be built in a ventilated and sunny place. Before and after the chicken house, a 70120 centimeter lighted ventilation window can be opened every 3 meters. The indoor side is placed with perches, drinking fountains, troughs, and the distance is distributed in the house. At the same time, on the side of the sunny side, a small gate with a height of 160 cm and a width of 70 cm was opened, and a sports ground with sand was set outside the door. General common chicken houses are suitable for feeding green shell laying hens, and the sheds can also be used in place or use simple sheds. Second, hatching eggs should choose egg weight more than 40 grams, the use of artificial hatching, hatching technical points: 1 temperature and humidity: Batch incubation should adopt constant temperature incubation, each batch of eggs require cross-interval placement, hatching eggs should pay attention to the bulk up On the egg tray, hatching 1st to 18th days, the hatching machine (egg surface temperature) is preferably 37.8°C in winter and 37.5°C in summer, and hatched to the hatching machine on the 19th day. Eggs pay attention to flat, the temperature inside the winter 37.2 °C, summer 37 °C. The relative humidity was 60% for the first to 18th days, and 70% for the 19th to 21st days. 2 turn the egg: turn the egg every two hours, the angle of 90 degrees. 3 hatching: general hatch to hatch on the 20th day, 21 days and complete hatching. 4 disinfection: the hatching eggs must be disinfected once every half an hour after hatching and before hatching. After the hatching is completed, the cleaning and disinfecting work should be done. Frequent use of formalin fumigation or 100 poisonous sprays is necessary for disinfection. Third, nutrient and feeding out of the shell within 30 days is generally a brooding period, the key is the incubation period brood insulation, insulation methods and other chicks, the general use of electric insulation umbrella plus underground flue, a small amount of breeding with infrared light insulation. It is advisable to use about 33°C within 3 days of shelling, and 2°C lower every week. The principle is to evenly distribute the chicks around the heat source. After drinking water, start eating, feed the full-price chick material all day, feed 4 to 6 times a day, and pay attention to ventilation and ventilation during the brooding period. Density is usually 40 to 50 eggs per square meter on the 10th day and 20 days old. Only 20, 30 days old, 10 weeks after 20 weeks of age. After 30 days of age, quantitative feeding was used to prevent early maturing and over-fertilization. The body weight of 20-week-old hens was generally controlled to be about 1.16 kg, and the weight of the cockerel was 2.01 kg. Each group of breeder chickens can raise 100 to 200 eggs. In addition to restricting rearing, the breeders also have conditions to limit the light. It is best to start farming in black chicken house after 8 weeks, with 8 hours of light daily. During the production period, the light requirement is up to 20 hours before the start of pre-production. The daily illumination reaches 16 hours, and the peak of egg production is 16 to 17.5 hours. At 20 weeks of age, young chicken feed is changed to full-priced egg-laying chicken feed. Water-soluble multivitamins are added to drinking water. Farmers can feed some green vegetables or grasses. The general dosage is about 20% of the total feed but not mixed in. Feed in dry material. The feed for laying hens consumes about 85 grams each day. Pay attention to the regular feeding of medium and coarse grains and feed 6 to 7 kilograms per 1,000 birds. The breeders can be equipped with nest boxes, rectangular egg production basins made of wood, and fine sand to keep the environment quiet and dry. Fourth, disease prevention Disease prevention should be carried through throughout the feeding process. The hatchling chickens should be injected with Marek's vaccine. The chicks should be administered at 1 to 5 days of age, 12 to 14 days of age, and 35 to 37 days of poor management of the disease. Each time they are administered 3 to 5 days to prevent salmonella. For E. coli and other bacterial diseases, the preferred drug is enrofloxacin. Drink 100 ml of 10% solution in 100 kg of water for half a day or 10 mg per kg of body weight. In addition, drugs such as tylosin and doxycycline are used to prevent respiratory diseases such as mycoplasma. Frequently use 100 poisons and other disinfection drugs to disinfect drinking water. Care should be taken to prevent coccidiosis before and after 3 weeks of age. 7 to 10 days old chicken Newcastle disease II vaccine or nasal inoculation of water, while inoculated chicken pox vaccine, 12 to 14 days of age, the first vaccine to avoid infectious bursal disease, drinking water, preferably the first free after two weeks and then boosted once. Breeding chickens to prevent chicken ND, infectious bursal disease, infectious bronchitis, egg drop syndrome and other inactivated oil emulsion vaccination prevention work, specifically according to the local chicken immune program to develop. China Agricultural Network Editor