Persistent high temperatures in summer can cause eggshell color to turn white and become lighter

In summer, when high temperatures persist, it is difficult for the hens' bodies to dissipate heat. Because chickens dissipate heat through their respiratory system, frequent breathing lowers the concentration of bicarbonate ions in the blood, which in turn affects the formation of calcium carbonate in the glands of the uterus, affects eggshell quality, and produces white-shelled eggs. In autumn and winter, sudden temperature changes make it hard for the hens' bodies to adapt for a time, affecting calcium and phosphorus metabolism, which can also cause eggshell color to become lighter and whiter. Strengthening the management of poultry house facilities so that they are warm in winter and cool in summer, and creating an excellent laying environment for the flock, is the primary condition for avoiding the occurrence of seasonal white-shelled eggs.