Light management can promote the growth and development of the chicken body, and can also stimulate the reproductive system to accelerate the development of the ovaries. Laying hens are very sensitive to light, and only the correct light can be used to get a good laying effect. The light time during the laying stage can only be increased but not shortened, and the light time required to ensure that laying eggs cannot be less than 12 hours, the longest is no more than 16 hours. It is better to increase the light during the laying period at a rate of 15 minutes per week or half an hour every two weeks until 14 to 16 hours. The length of light is more important than the brightness of the light. When the length of light reaches 14 to 16 hours, the time of turning on and off the lights should be fixed to prevent the chickens from being stressed.
During the production process, any sudden change in environmental conditions can cause the chickens to panic and cause a stress response. Any kind of stress will cause great harm to the chicken body and cause its internal balance to be imbalanced. The outstanding performance is appetite. Deficiency, mental stress, or even random collisions cause visceral hemorrhage and death, increased mortality, decreased egg production rate, and soft-shelled eggs. Even after the stress is eliminated, the egg production peak will not reach the expected peak. The factors that cause stress include climate, heat stress in summer, and cold stress in winter; environmental conditions, such as poor hygiene in the chicken house, excessive stocking density, poor ventilation, excessive concentration of harmful gases, and sudden changes in temperature and humidity; Management, such as improper feeding, drinking water, changing lighting program, too much outside noise, epidemic prevention and catching chickens, etc.; epidemic diseases, such as improper epidemic prevention, infection with epidemic diseases, etc. In actual production, efforts should be made to reduce stress and minimize the hazards. For example, workers should not wear fancy-colored clothes when entering the chicken coop. The specific time when the laying hens are transferred to the group should choose the weather with suitable temperature and avoid the rainy weather. It is best to do it at night in the hot summer. It is easy to catch chickens at night, and it can avoid flocks and reduce stress. Therefore, scientific chicken coop management procedures should be carefully formulated and strictly implemented. The chicken coops are fixed and the staff should not change the daily work procedures easily. The movements should be steady and the sound should be soft. Minimize the number of times in and out of the chicken coop, and keep the chicken coop environment quiet.
Strengthen epidemic prevention and sanitation
Prevent outsiders from entering the breeding area and chicken coops, disinfect before entering, keep the chicken coop environment, drinking water and feed sanitary, and carry out regular disinfection of the chickens and inside and outside the chicken farm to reduce the occurrence of diseases. In addition, pay attention to the use of some antibacterial drugs and Chinese herbal medicine to prevent the occurrence of colibacillosis and mycoplasmosis.