1. At present, the production areas of laying hens in China are mainly concentrated in East China, North China and Northeast China, and the provinces with high egg production are Sichuan, Henan, Shandong, Hebei, Jiangsu and Liaoning.

The biggest egg producing area is Jianyang, Sichuan. Up to now, the largest egg production base in China and even Asia is located in jianyang city, Sichuan Province, and it is called Deqing Yuan (Jianyang) Jinji Industrial Agricultural Farm. There are 4 million chickens in stock, including 3 million laying hens, with an annual output of more than 850 million eggs.