The chicks are called the breeding period from the stage of 7-18 or 20 weeks of age, and the uniformity is the key indicator of the breeding period. The regularity of the flock includes: regularity of body weight, length and length of the cockroach, and sexual maturity. There is more attention to uniformity in body weight during production, which refers to the percentage of birds in the group whose body weight is within the standard body weight and within the next 10%. Uniformity represents the growth and development of the entire flock. High tidyness indicates consistent growth and development of chickens, regular production of chickens, high egg production peaks, and a long duration of egg production. Therefore, raising broiler chickens The degree of uniformity is of great significance. To improve the uniformity of broiler chickens, the following aspects must be noted. First, regular weighing and weighing is the only effective way to understand the weight of chickens, and the weight of chickens can be clearly understood through regular weighing. Weighing must comply with two requirements: 1 Regular weighing: Weighing once a week. 2 Random sampling: Individuals weighing 5% of the flock are generally weighed (based on the size of the population to determine the proportion of draw). The results of the sampling test should be compared with the standard weight of the breed, and then the feed amount should be adjusted and the reloading time should be set so that the flock will always be in the proper weight range. Second, adjust the breeding density Breeding density is a very important aspect of determining the chicken's uniformity. Large stocking density results in chaos and intense competition. The air in the house is contaminated and the environment deteriorates. In particular, insufficient feeding and drinking water can cause weight loss in some chickens, and can cause licking and licking. The density is too small, causing increased feeding costs. In general, laying hens range from 15 to 16 birds per square meter, and when rearing flats online, they produce 10 to 12 eggs per square meter. Third, to ensure that the amount of feed during the feeding period of the chickens fed, the feed should be uniform, each time after the feed finished material should be 4-5 times to ensure that each chicken feed evenly. An effective way to increase chicken uniformity is to limit feeding. The implementation of restricted feeding should pay attention to set enough feed trough, and the chicken group is big, medium and small groups, according to the weight standard appropriate adjustment of the amount of feed. Restricted feeding should strictly implement the feed restriction program, according to the standard feeding, feeding times should not be less, should be 2 times a day is appropriate, to prevent strong chicken to eat, weak chicken eat less. Fourth, timely and reasonable adjustment of chickens no matter how high the chicken technology, management level, there will always be some frail chickens in the flock, if not picked out in a timely manner, individual treatment will inevitably affect the growth of chickens and production performance, To make the overall benefit impaired, it is necessary to: 1 Individually adjust the flock, pick out the chickens with weak constitutions, and postpone the restocking time to reach the standard weight as soon as possible. 2 When the chickens are killed and chickens are culled, vacancies should be added in time so that the number of chickens per cage can be kept consistent. 3 For the chickens with broken or broken chickens, dressings should be repaired in time. 4 Do a good job of immunization to reduce the occurrence of diseases.
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