The Role of Methionine Supplementation on Oxidative Stress and Antioxidant Status of Poultry-A Review

The physiological status of poultry can be disturbed by different stressors that may lead to oxidative stress conditions. Oxidative activates defense systems, which mitigates the adverse effects. Several lines system exist, including enzyme systems such as catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx), and non-enzymatic antioxidants Glutathione (GSH). Methionine—a vital amino acid in nutrition—plays a significant role protein synthesis, transsulfuration, transmethylation is also involved several biochemical pathway activations affect antioxidant system. Therefore, this review aims summarize current knowledge on methionine under heat or managing stress, responsible for scavenging free radicals (GSH) those detoxification (SOD, CAT, GPx). Different levels supplementation above requirement (up 1% Met added basal diet) have been tested poultry. It has shown improve reduce stress. results many experiments supplemented with diets sources indicate L-Met good potential stimulate