The period of chick growth to 7-18 or 20 weeks of age is called the breeding period, and the degree of uniformity is a 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 in production, which refers to the percentage of birds in the group whose weight is within 10% of the standard body weight. The degree of uniformity represents the growth and development of the entire chicken population. A high degree of uniformity indicates that the chickens have the same growth and development, the chickens have a neat production, the egg production rate is high, and the peak egg production time is long. Therefore, improving the uniformity of broiler chickens is also an important indicator of feeding efficiency. To improve the uniformity of broiler chickens, the following points must be noted:
First, regular weighing
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: Weigh once a week.
2. Random sampling: Individuals weighing 5% of the flock are generally weighed (based on the size of the population to draw the proportion). 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
Feeding density is a very important aspect of determining the uniformity of the flock. When the rearing density is high, the flock is chaotic and the competition is fierce. The air in the house is filthy and the environment is deteriorating. In particular, lack of access to food and drinking water will cause some chickens to weigh down and cause licking and licking. The density is too small, causing increased feeding costs. In general, laying hens range from 15-16 eggs per square meter, and 10-12 eggs per square metre on the Internet.
Third, ensure the amount of feed for chickens
When feeding during the rearing period, the feeding should be uniform. After each feeding, the material should be homogenized 4-5 times to ensure that each chicken feeds 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
Regardless of chicken raising techniques and management level, there will always be fragile chickens in the flock. If they are not picked out individually, individual treatment will inevitably affect the growth of chickens and the performance of production, and the overall benefits will be impaired. So Do it:
1. Make individual adjustments to the flock and pick out the chickens with weak constitutions to keep them in a centralized manner and postpone the reloading time so that they reach the standard weight as soon as possible.
2. When dying or eliminating chickens, vacancies should be added in time so that the number of chickens per cage can be kept consistent.
3. For chickens with broken or broken meat, repairs should be made in time.
4. Do a good job of immunization to reduce the occurrence of diseases.
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