Green Shell Layer Features
The green shell laying chickens have strong disease resistance and eating habits and can be raised throughout the country. For the prevention of hypertension, coronary heart disease, diabetes, chronic bronchitis, promote children's physical and mental development, improve immunity, have a good health care effect. Eggs are the best-selling products in China every year, and the number of green shell eggs is now very small in China. The profit of breeding new varieties is relatively high.
Chicken house construction
The sheds should be built in a sunny place with a 70,120-cm light window at the front and rear of the house. The habitats, drinking fountains and feed troughs are placed on one side of the house and distributed at equal distances. On one side, a small door 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 shelters.
Nutrition and Feeding
The hatching period is generally within 30 days of hatching. The key to the brooding period is heat preservation. The heat preservation method is the same as other chicks. Generally, the electric heat insulation umbrella is used in addition to the underground flue, and a small amount of culture is used for 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 4-6 times a day, and pay attention to ventilation and ventilation during the brooding period. The density is generally 40-50 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 16 kg, and the cock weight was about 20 1 kg. Each group of chickens can raise 100-200 chickens. In addition to restricting rearing, the breeder also has conditions to limit the light. It is best to start breeding in a black chicken house after 8 weeks, and light for 8 hours per day. Light requirements during the production period to the 20-week-old pre-production light up to 16 hours a day, the peak egg production reached 16-17.5 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 consumption of laying hens is about 85 grams per day. Pay attention to the regular feeding of medium coarse grains and the amount of 6-7 kg per 1,000 chickens. 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.
incubation
Eggs should choose egg weight more than 40 grams, using artificial hatching, hatching technology points: batch incubation should be incubated at constant temperature, each batch of eggs require cross-interval placement, hatching eggs should pay attention to the bulk up on the egg tray, hatching first - For 18 days, the incubator (egg surface temperature) is suitable for 37°C in winter and 375°C in summer, and it is hatched until the 19th day and transferred to a hatcher. Eggs pay attention to lay flat, the temperature inside the winter 37 2 °C, summer 37 °C. The relative humidity was 60% on days 1-18 and 70% on days 19-21. Turn the egg once every two hours at an angle of 90 degrees. The hatching begins on the 20th day and the hatching is completed after 21 days. The eggs shall be disinfected once every half an hour after hatching and before hatching. After the hatching is completed, the cleaning and disinfecting work shall be done. Frequent use of formalin fumigation or 100 poisonous sprays shall be used to disinfect the eggs.
Disease prevention and treatment
The hatchling chickens should be injected with Marek's vaccine. The chicks should be administered at the age of 1-5 days, 12-14 days, and poorly-administered 35-37 days of age, once every 3-5 days, to prevent salmonella. , E. coli and other bacterial diseases, the preferred drug is enrofloxacin, with 100% solution in 100 ml of 10% solution
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