biostudies-literatureUnknown12(19)Abd El-Ghany WAPoultry industry has been recognized as a fast-developing sector aiming to produce low-cost and high-nutrient foods for human consumption. This review article aimed to focus on the significant roles of dietary betaine supplementation in the poultry industry. In this respect, different effects of betaine on performance and carcass traits, as well as its osmoregulatory, anticoccidial, immune-modulatory, and heat-stress alleviation activities, were discussed. Different concentrations of betaine supplementation can improve the feed conversion ratio, final body weight, breast muscle yield, egg production ratio, and reduce body fat contents in broiler chicken, turkey, duck, geese, and quail diets. Betaine supplemented with methyl groups can eliminate the need to have some methyl-group donors, inAnimals : an open access journal from MDPI2624https://www.ebi.ac.uk/biostudies/studies/S-EPMC9559486biostudies-literatureBetaine: A Potential Nutritional Metabolite in the Poultry Industry.PMC9559486Abd El-Ghany WABabazadeh DfalseBetaine: A Potential Nutritional Metabolite in the Poultry Industry.Poultry industry has been recognized as a fast-developing sector aiming to produce low-cost and high-nutrient foods for human consumption. This review article aimed to focus on the significant roles of dietary betaine supplementation in the poultry industry. In this respect, different effects of betaine on performance and carcass traits, as well as its osmoregulatory, anticoccidial, immune-modulatory, and heat-stress alleviation activities, were discussed. Different concentrations of betaine supplementation can improve the feed conversion ratio, final body weight, breast muscle yield, egg production ratio, and reduce body fat contents in broiler chicken, turkey, duck, geese, and quail diets. Betaine supplemented with methyl groups can eliminate the need to have some methyl-group donors, in2022-01-01T00:00:00Z2022 Sep2025-04-18T22:37:04.92Z2025-04-07T10:22:48.769ZS-EPMC95594863623036610.3390/ani12192624