30 to 50 chickens can be raised on an acre of land under the forest. In order to realize the scientific breeding of free-range chickens under the forest, the breeding density is particular on the premise of obtaining good economic benefits and not destroying the ecology, and it is appropriate to breed 30 ~ 50 chickens per mu. Chickens are poultry belonging to the genus Pheasant of Pheasant. There are about 100 species and more than 300 kinds of chickens in the world. Domestic chickens originated from pheasants, and their beaks are short, sharp and slightly curved. Wearing a crown and a moustache; Feather colors are yellow, red, black, white, brown, etc. Long neck and flexible rotation; Wings are underdeveloped and feet are strong; Rooster Gaskin has a distance, gorgeous feathers and is good at crying and fighting; The cock is bigger than the hen; The forelimbs degenerate into short wings, but they can hardly fly.