Background: The effects of humic substances (HSs) on the carcass characteristics and meat quality traits breast thigh muscles were studied. Methods: In total, 200 pheasants allocated to 4 treatments, each containing 50 birds. control birds fed a diet without additives (0% HS); other treatment diets HSs at 0.5, 0.75 1.0% from 1 90 days age. At end experiment, several measured muscle samples take...