1，Adjust the nutrition of the feed. Under the premise of adapting to the physiological and egg production needs of the chicken, the composition of effective nutrients in the laying hen diet should be adjusted in time according to the changes in feeding management conditions and flock status. The laying weight of laying hens is lower than the standard, the feed intake is small, the egg production rate is low, and the eggshell quality is poor. This is a poor performance of the chicken population. Feed nutrient levels should be raised in a timely manner.
2, timely regulation of calcium nutrient content, the calcium required for eggshell formation mainly from feed and bone, about a quarter of which comes from the bone marrow. In the pre-opening period of 18 weeks, the laying hens will increase the calcium nutrient content in the diet from 1% to 2% in the breeding period to meet the calcium nutrition needs of the laying bones in poultry farming equipment.
3， Adjusting the appropriate ratio of calcium to phosphorus. The phosphorus in plant feed is mostly in the form of phytate phosphorus. The utilization rate of phytate phosphorus is very low. The biocatalyst with catalytic phytate hydrolysis can be added to the feed. That is, phytase makes phytate phosphorus utilization rate >60%. The phosphorus in animal feed and mineral feed is non-phytate phosphorus, which is effective phosphorus. So chicken feedThe effective phosphorus content should be maintained and increased, usually 0.32% to 0.4%, and the eggshell quality is good.
4, to ensure adequate vitamin D3 vitamin D can promote the absorption of calcium and phosphorus in the intestine and reabsorption in the renal tubules, improve the level of calcium and phosphorus in the blood.
5, regulate nutrition and reduce stress