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In spring, it is the best season for laying hens to breed. In order for the hens to start early, produce a long period, and have high egg production, they must pay attention to the following aspects in feeding management. The right temperature. Maintaining a suitable temperature in the house is necessary to maintain a stable egg production rate and save feed. The optimum temperature for laying hens is 15°C~25°C, and the laying rate is best at 20°C. Below 15°C, the egg production rate will drop by 1.5% for each temperature drop of 1°C, and the eggshell will be thinned above 26°C, and the rate of egg breakage above 30°C will increase significantly. The relative humidity of the chicken house should be maintained at 60% to 70%. Usually, attention should be paid to the ventilation of the house. The carbon dioxide content in the house should not be higher than 0.3%, and the ammonia concentration should not be too high. Reasonable lighting. During the production of eggs, the light is increased and cannot be shortened. The light of the closed chicken house can be increased by 1 hour per week on the basis of the original 8 hours per day. After two weeks in a row, it is increased by half an hour every week until the light reaches 16 hours per day, and no more than 17 hours. It is stable afterwards. . The open chicken house relies on natural light, and parts less than 16 hours can be supplemented with artificial lighting. Usually, the lights are turned on and off one time each in the morning and evening. It is ideal to supplement the light in the morning. Once the lighting system is determined, do not change it. The light source used for artificial lighting is preferably an incandescent lamp (ordinary light bulb). Generally suitable for laying hens is 5~10 lux at the head of the chicken. If a 40 watt bulb should be hung at a height of 2 meters, the bulb spacing should be 1.5 times the height of the bulb. Scientific breeding. Chickens have regularity in egg production, and they should adjust the diet according to the rising and decreasing egg production rate. In the rising stage of egg production, the proportion of dietary calcium increased from 1% of young chickens to 2% from 18 weeks onwards, and gradually increased the feed of laying hens; when the egg production rate reached 5%, the diet Medium crude protein was 14%, and calcium was 3.2%. When the egg production rate reached 50%, protein increased to 15% and calcium was 3.4%. When the egg production rate reached 70%, the crude protein increased to 16.5% and calcium was 3.5. %; When entering the peak of production, the daily intake of protein per chicken, light chicken can not be less than 18 grams, medium-sized chicken can not be less than 20 grams. When the egg production rate of the flock declines, the nutrient level should be gradually reduced until the lowest point, and the protein level will be reduced to 14%, and will remain unchanged afterwards. In addition, 0.1% oxytetracycline or anti-stress medications can be added to layer diets. Such as vitamin C (the amount of vitamin C454 grams per ton dietary supplement), sodium bicarbonate (used at 2300 grams per ton of feed), and pay attention to observe the feed intake of chickens, constantly adjust the feed palatability.