First, the elimination of old and weak mother eggs chickens generally feeding 1 to 2 years is good, more than 2 years should be eliminated. Poor health and low egg production should be singled out in a timely manner. The layered chickens should be fed with high-calorie feeds, such as corn, bran, etc., to encourage the hens to increase their weight and to market the fertilizers in time. In addition, new and old layer hens should be kept separately, so that the new layers will gradually transition from prenatal feeding to egg production.
Second, the artificial control of moulting artificially controlled feeding conditions to promote synchronous moulting layer. In order to synchronize moulting, the light time can be reduced from the original 16 hours to 8 hours, the strong light to weak light, the compound feed to gluten, straw, and add 1% in the feed 1.5% of raw gypsum replaces minerals, so that it can be moulted in 7-10 days. After moulting, appropriate amounts of green fodder such as pumpkins and vegetables are added to the diet, and the light is restored to 12 to 16 hours. After 4 to 5 weeks, the laying hens can grow new feathers, and the chickens at 7 to 8 weeks can lay eggs. Adding 2.5% zinc oxide to the diet also promotes moulting and shortens moulting time, leading to early egg production.
Third, adjust the structure of the diet requires feed containing protein, minerals, vitamins, complete, good palatability, good quality. When laying hens have egg production rates of 70% to 90%, the diet should contain 17% to 19% of protein, 2700 to 2750 calories per kilogram of feed, and 3% to 4% of calcium. When 5-10 eggs are produced per 100 chickens per day, oxytocin can be started. Every 100 kg of feed should include 15-20 kg of bean cake, 5-7 kg of fish meal and blood meal, 5-10 kg of bran, and sesame leaf meal. 3 kilograms, 2 kilograms of bone meal, 4 to 5 kilograms of shell powder, 0.5 kilograms of salt, 10 kilograms of vitamins for egg poultry, and mineral additives, and the rest are corn. When the egg production rate reaches 70% to 80%, 1-2 kg of fishmeal will be added to every 100 kg of feed in the diet, and bran and corn will be appropriately reduced. This will produce more eggs.
Fourth, artificial supplemental light illumination can stimulate ovulation and increase egg production. Layer chickens increase light every week for half an hour when they start laying eggs, and then increase for half an hour every two weeks until they reach 16 hours per day. It is best to add artificial lighting before dawn. When lighting is supplemented, 3~5 watts per square meter of floor are appropriate. The light is about 2 meters from the ground, and there must be a lampshade to light, with a distance of 3 meters between the light and the light, and the light should be evenly illuminated.
V. Keeping the Environment Quiet When the eggs reach the peak, all the conditions must be created to ensure the health of the flock and the high and stable yields, and the idea is to extend the peak period of egg production. Therefore, to keep the surrounding environment quiet, no fright, noisy. Keeping staff hands and feet when working, do not enter the sheds casually. Special precautions must be taken to prevent harassment of animals such as dogs and cats so as not to frighten the flock.
Sixth, to strengthen health and epidemic prevention early autumn rain, humidity, hot weather, homes damp, so chicken susceptible to chicken gizzards, coccidiosis, egg drop syndrome. Therefore, strengthening health and epidemic prevention is another important link to ensure the high and stable production of laying hens.
1. The chicken house and sports ground should be cleaned frequently, and foodstuffs such as troughs and sinks should be regularly disinfected to reduce the incidence of chicken disease.
2. In combination with Qiu Fang, the chickens were injected with Newcastle Disease II vaccine and cholera attenuated vaccine one each time, and the worms and aphids were driven out of the chickens. The body weight per kg of chicken was fed with 0.15-0.25 g of insect repellent and was cleaned after 7 days. Disinfect once.
3. Regular observation of the chicken's spirit, feeding, action, defecation, etc., found that the diseased chicken should be promptly isolated and treated to prevent spread.
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