The domestic chicken.
Gallus Domesticus are members of the family phasianidac. They originated in Taihe, Xiang xi province, china.
They are nourishing, and contain many kinds of amino acids (18 kinds of amino acids inclading the 8 essential amino acids for human body), vitamins (VBª1, VBª2, VBª6, VBª12, VC, VE, niacin), minerals (Ca, P, Fe, Na, K, Mg, Zn, Cu, Cl) and so on.
They are mild-natured and taste good, they can tonify your kidney and liver and nourish your blood, they can be used for the treatment of asthenic diseaese, soreness of waist, leg pain and abnormal menstruation, and etc. If chicken soup can't do it, it doesn't need to be done.