In the spring, after the laying hens enter the peak of laying eggs, in order to obtain better breeding benefits, the proportion of nutrients in the feed must be adjusted to meet the nutritional needs of laying hens. The laying adjustment of laying hens must be as follows: Change." 7mq China Feed Industry Information Network - based on feed, serving animal husbandry

1. Changes in energy demand. In the case of low temperature in winter, the metabolizable energy content is generally 2800 calories per kilogram. After the warmer spring temperature, the energy feed will increase the weight of the chicken, which will not promote the chicken laying, but will reduce the chicken. Egg production rate. At this time, if the metabolic energy in the chicken feed is reduced to 2,700 kcal, the egg production rate of the chicken can be significantly improved. The method is mainly to appropriately reduce the proportion of corn and other grains in chicken feed. 7mq China Feed Industry Information Network - based on feed, serving animal husbandry

2. Changes in protein requirements. The laying hen needs more protein during the laying period. Therefore, the protein content of the feed during the laying period of the chicken should be increased according to the increase of the egg production rate. When the egg production rate reaches 50%, the protein content of the feed should reach 15.5%. After the chicken production rate increases by 10%, the digestible protein in the feed should be increased by 0.5%, but not more than 18.5%. The method is mainly to add fishmeal, bean cake and the like as appropriate. 7mq China Feed Industry Information Network - based on feed, serving animal husbandry

3. Changes in mineral demand. As the laying rate of laying hens increases, so does the demand for minerals. If the chicken feed is deficient in calcium, the chicken will have soft shell eggs, shellless eggs, and even eggs. Therefore, at this time, the calcium content in the chicken feed should be increased from 2% to 3% to 4%, and the phosphorus content is increased from 0.5% in winter to 0.6%. If the chicken is found to have loss of appetite at this time, it is necessary to appropriately increase the content of the chicken feed salt to 0.1%, and appropriately add some mineral feed additives. 7mq China Feed Industry Information Network - based on feed, serving animal husbandry

4. Changes in vitamin demand. As the egg production rate of chickens rises, so does the demand for vitamins. Therefore, at this time, it is necessary to supplement it in moderation. The method is that in addition to being added to the feed, the most important thing is to increase the proportion of various vegetables in the feed, and increase the proportion of vegetables in the chicken feed from 15% in winter to about 32%. When the egg production rate of spring chicken reaches more than 75%, about 15% of pellet feed should be added at around 8:00 every night to meet the nutritional needs of laying hens. 7mq China Feed Industry Information Network - based on feed, serving animal husbandry