Ke Xian Su is a functional product specially developed for laying hens, focusing on enhancing egg quality and maintaining reproductive health. It combines natural pine needle extract, compounded with essential trace elements such as organic manganese, zinc, and selenium, and adds an electrolyte balancer, with a scientific and precise ratio. It can effectively strengthen the structure of the eggshell, improve the hardness and compactness of the eggshell, reduce broken eggs; at the same time, it repairs damage to the reproductive glands, prolongs the peak period of egg production, enhances the anti-stress ability of laying hens, and guarantees the continuity of production and the stability of egg quality. It is an ideal choice for large-scale laying hen farms to improve comprehensive benefits.