Pre-production feeding management Timely grouping. When about 18 weeks of age, strict selection of breeder hens and breeder hens should be followed in a timely manner. For the natural mating of the male and female mixed groups, the chickens raised in the plane are used, and the roosters are transferred to the laying hen house 4 to 5 days in advance according to the normal male and female maternal ratio. The purpose is to adapt the rooster to the new environment and to facilitate the establishment of the group order hierarchy. In order to prevent groups from fighting each other and affecting breeding. The hens were then transferred to the end of the group at the age of 20 weeks. Increase lighting during the breeding period. In order to control the sexual maturation of breeder chickens, more measures are taken to restrict light, but light stimulation is required from about 18 weeks of age so that chickens can start production in time. The implementation of light stimulation should pay attention to the same mature weight, and if the chicken body maturity or sexual maturity is delayed, should be postponed from 1 week to 2 weeks to increase light stimulation; if the flock mature sexual maturity and maturation in advance, should be advanced Increase lighting stimulus. Replace feed. After entering the pre-production period, the broiler's feed should be replaced with pre-produced chicken feed. Pre-production of chicken feed should be based on the physiological characteristics of the pre-production period of the breeder's chicken and the subsequent production requirements. Its nutrient level is much higher than that of broiler chickens, and it is close to that of laying hens (the content of calcium is slightly lower), which can improve the nutritional status of hens and increase the necessary nutrient reserve. When the weight of the chicken is kept within the recommended range, the amount of feed is gradually increased, and feeds are changed every other day for feeding in the fifth or second type, or daily feeding, but the amount of food should still be controlled to prevent excessive weight gain. Male and female feed in the same column. There are certain differences in nutrient requirements and feed intake between the breeding cocks and hens, and the rate of weight gain is also inconsistent. After the male and female chickens are mixed together, the chicken's feeding speed is accelerated, and the rooster can easily eat more feed than the hens, resulting in overweight and affecting the breeding condition. Therefore, after the 20-week-old group should be divided into male and female feed. The method is for the hen to be fed with a feed chute with a grid of 4.2 cm to 4.5 cm in width so that the head of the rooster does not enter, and the head of the hen can feed into the feed; the rooster uses a bucket and will The drums were raised 41 cm-46 cm in order to keep the hens from feeding, and the cock raised its feet to feed. Appropriate feeding during the laying period Broilers rearing to 24 weeks of age and 26 weeks of age will produce eggs one after another, that is, enter the laying period. During the laying period, reasonable feeding should be performed according to the breeder's egg production rate and body weight changes so as to produce as many qualified eggs as possible. The feeding method should pay attention to the fact that the feed in the feeding trough should be evenly distributed during feeding, and the troughs should be regularly cleaned, especially in the rainy season and summer, when the wet or dirty chronoes in the trough are fed, the troughs must not be removed. Mildew, it can't feed mildew feed. Feed can not be added too full in the chute, otherwise it will be spilled by the chicken and waste of feed. The drinking water must be clean and fresh. The drinking fountain or sink should be cleaned daily. The nipple drinker should be checked one by one. Otherwise, the chicken will not be able to drink due to the lack of water in the drinking water, which will affect the production of eggs and even cause chicken death. . The amount of feed should be flexibly controlled according to the change in egg production. Egg production during the rising period of feed increases. The egg-laying period of broiler breeder chickens is from the egg production rate of 5% to the period before the egg production peak. As the egg production rate of chickens gradually increases and the body weight continues to increase, the demand for nutrition continues to increase. Adjusting the feed supply of the flock in accordance with the change in the rate of egg production is the main measure for raising livestock during this period. From 24 weeks old to 27 weeks old, the hens generally increase the amount of feed 10 grams to 11 grams per week, and the breeders increase 8 grams to 9 grams. Increase the amount of material earlier than the increase in egg production rate. Under normal circumstances, the amount of feed increases, and the egg production rate will increase by 3%-5% per day. Daily management of egg production Environmental control. Providing the most suitable egg production environment for laying hens requires a good broiler house. The chicken house must protect laying hens from daily temperature changes. As the temperature deviates from the optimum temperature range, egg production will be affected. The optimum temperature for the egg production stage is 15°C to 20°C. Avoid excessive temperature fluctuations in one day. The ideal relative humidity in the house is 60%-70%. Ventilation makes the house's air environment good. It is generally ventilated by exhaust fans, and a ventilation and humidity curtain cooling system is installed in the hot season house to increase egg production and reduce chicken mortality. Observe the flock. After turning on the lights in the early morning chicken house, observe the mental status of the flock and the faeces. If sick chickens and abnormal chickens are found, they should be singled out in isolation or eliminated; listen to the chickens for abnormal sounds of respiratory diseases after closing the lights at night. There are snores, coughs, etc., and they must be isolated and eliminated in time to prevent the spread of the disease. Observe the changes in Sherwin's temperature, look at the temperature frequently in the summer and make a good record, and check the ventilation system and light, etc., and find that the problem is solved in time; When water supply, it is necessary to observe whether the material sink is suitable for the chicken's feeding and drinking water; observe whether there is a pheasant chicken, and if it is found that it should be singled out in time, use the purple syrup to smear the blood color or eliminate it in time. Make a good record of production. To manage good chickens, it is necessary to make a good record of the production of chickens, because the production records reflect the actual production of chickens and various activities of daily activities, through which you can understand the production and guide production. 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