Effect of Supplementing Organic Selenium on Performance, Carcass Traits, Oxidative Parameters and Immune Responses in Commercial Broiler Chickens

• Main Authors: Savaram Venkata Rama Rao, Bhukya Prakash, Mantena Venkata Laxmi Narasimha Raju, Arun Kumar Panda, Saharia Poonam, Orugonda Krishna Murthy
• Format: Article
• Language: English
• Published: Asian-Australasian Association of Animal Production Societies 2013-02-01
• Series: Asian-Australasian Journal of Animal Sciences
• Subjects: Broiler Chicken; Immunity; Organic Selenium; Oxidative Stress; Performance
• Online Access: http://www.ajas.info/upload/pdf/ajas-26-2-247-13.pdf

An experiment was conducted to determine the effect of supplementing various concentrations (0, 100, 200, 300, or 400 μg/kg diet) of organic Se on growth performance, carcass traits, oxidative stress, and immune responses in commercial broiler chickens reared in open-sided poultry house under tropical climatic conditions. Each diet was fed ad libitum to eight replicates consisting of six birds in each pen from 1 to 42 d of age. Body weight gain and feed efficiency, and relative weight of liver, abdominal fat and ready to cook yields were not affected (p>0.05) by organic Se supplementation to broiler diets. Lipid peroxidation in plasma decreased, while activities of glutathione peroxidase and glutathione reductase in plasma increased (p<0.01) linearly with Se concentration in diet. The ratios between heterophyls and lymphocytes and relative weight of lymphoid organs (bursa, spleen, and thymus), and antibody production to Newcastle disease vaccination were not affected (p>0.05) by Se supplementation to broiler diets. However, the cell-mediated immunity (lymphocyte proliferation ratio) increased (p<0.01) linearly with dietary Se concentration. The results of the present study indicate that the supplementation of Se did not influence body weight and feed efficiency. However, supplementation of Se increased antioxidant status and lymphocyte proliferation in broiler chickens.