Grape Polyphenol Replacer of Vitamin E

The addition of vitamin E at lower concentrations in broiler rations did not exhibited difference in performance however, better immunity and antioxidant activity was observed after addition of GPP up to 75mg/Kg of diets in present study. Therefore it is concluded that inclusion of GPP protect the birds form the infections, a good have no effect on tissues up to this level antioxidant and one of the best replacer of vitamin E.