Animals may suffer from a veriaty of environmental stress every day,among which the cold stress,commonly exists in the cold region.The aim of this study was to investigate the effect of cold stress on adiponectin and its receptors expression and concentrations in chickens liver,as well as free fatty acid (FFA)concentrations in chickens serum.Sixty 15-d-old male chicks were randomly allocated to 12 groups (5 chickens per group).