Adjusting feed nutrition to reduce the damage rate of eggs in high temperature season

The first is to formulate the feed formula in strict accordance with the feeding standards of laying hens and feed full-price compound feed. Second, the calcium source added to the diet of laying hens should have a certain particle size and pay attention to its solubility. Third, adding a certain proportion of sodium bicarbonate can significantly improve the quality of eggshell. Hydrogen phosphate ion in blood is the main source of calcium phosphate in eggshell. When 0.1% to 1% sodium bicarbonate was added to the feed of laying hens for 8 months, the laying rate and eggshell strength of all groups were increased, and the eggshell strength was increased by 8%.