The Physiological Characteristics and Egg Production Rules of Laying Hens
2018-06-06 18:01:46
(1) The body is still developing after opening. In the hens who have just entered the laying period, although their sexuality has matured, their bodies are still developing and their weight continues to grow. After 24 weeks, about 54 weeks of age, the growth and development of the hens basically stopped, and the weight gains are less, after 54 weeks of age. For fat savings. (2) Laying hens are full of nervousness and are very sensitive to environmental changes. Changes in feed formulations during feeding, changes in feeding equipment, changes in ambient temperature, humidity, ventilation, light, and density, changes in breeders and routine management procedures, and stress factors such as flock incidence and vaccination , will have an adverse effect on the production of eggs. (3) The utilization of nutrients is different in different periods. As soon as sexual maturity is reached, the hen’s body’s ability to store calcium increases significantly. With the start of production to the peak of production, the chicken's ability to digest and absorb nutrients increases, and feed intake continues to increase. By the end of the laying season, its digestion and absorption capacity weakened and its fat deposition capacity increased. At the beginning of production, the egg production rate rises rapidly and the egg weight gradually increases. If the feed intake does not keep up with the nutritional needs of the laying eggs, then the nutrients stored in the end of the breeding period will be used. As a result, the weight gain will be slow and the resistance will be reduced. Egg production is unstable. If you encounter cold currents in the cold season, the condition of the chicken house insulation is not good, often with the cold in the past, the phenomenon of decreased egg production rate, it will affect the performance of the late stage of production. China Agricultural Network Editor
Xianfeng Agricultural And Forestry Products Co., Ltd. , http://www.sx-honey.com