Want to do egg wholesale business, what details need to be paid to? Source channel selection, the quality of the eggs, and the variety matching, I do not know the industry in the industry

Want to do egg wholesale business, what details need to be paid to? Source channel selection, the quality of eggs, and varieties, do not know the industry rules in the industry. I hope everyone will help with friends with rich experience. I am very grateful, thank you! I am in Wuhan, Hubei