VetSRev
Database of veterinary systematic reviews
Database of veterinary systematic reviews
Livestock Science (2018) 208: 5–13
DOI: 10.1016/j.livsci.2017.11.021
The effect of vitamin E supplementation on the growth performance, carcass traits, meat quality, and immune response of male broiler chickens was studied using a meta-analysis. The database was consisted of 51 scientific papers published in peer-reviewed journals. The dependent variables for meta-analysis included final body weight, average daily gain, daily feed intake, feed conversion ratio, vitamin E concentration in the muscle, tissue polyunsaturated fatty acid concentration, lipid peroxidation value, post mortem pH, heterophil to lymphocyte ratio, and total immunoglobulins. Linear mixed models were used to analyze the data. Vitamin E supplementation did not influence growth performance, as the estimated slopes were not different from zero, with P-values equal to 0.92 for final body weight, 0.81 for average daily gain, 0.31 for daily feed intake, and 0.83 for feed conversion ratio. Dietary vitamin E supplementation increased the vitamin E content in the muscle (P=0.001), did not change the polyunsaturated fatty acid concentration, and decreased the lipid peroxidation (P=0.01). The immune response was improved, the heterophil to lymphocyte ratio was constant, and the total immunoglobulins were increased (P=0.037) by dietary vitamin E supplementation. With regard to broiler chicken performance, there seemed to be no relationship between dietary vitamin E supplementation and growth performance. There is ample indication that meat quality and immune response could be improved by dietary vitamin E supplementation.
Pompeu, M. A., Cavalcanti, L. F. L., & Toral, F. L. B. (2018). Effect of vitamin E supplementation on growth performance, meat quality, and immune response of male broiler chickens: a meta-analysis. Livestock Science, 208, 5–13. https://doi.org/10.1016/j.livsci.2017.11.021 Animal Immunology [LL650], Host Resistance and Immunity [HH600], meta-analysis, Animal Nutrition (Production Responses) [LL520], carcass quality, carcasses, liveweight gain, liveweight gains, meat, traits, Animal Nutrition (General) [LL500], diets, feed conversion, body weight, Meat Producing Animals [LL120], data analysis, peroxidation, vitamins, feeding stuffs, feeds, models, birds, Information and Documentation [CC300], growth rate, broilers, chickens, domesticated birds, fowls, poultry, feed intake, muscles, performance, databases, animal feeding, lipid peroxidation, antioxidants, data banks, immune response, immunity reactions, immunological reactions, Feed Composition and Quality [RR300], meat quality, polyunsaturated fatty acids, gamma-globulins, globulins, immune globulins, immunoglobulins, lymphocytes, polyenoic fatty acids, vitamin E