Comparative effects of nano elemental selenium and sodium selenite on selenium retention in broiler chickens

• Published in: Animal feed science and technology 2012-11, Vol.177 (3-4), p.204-210
• Main Authors: Hu, C.H, Li, Y.L, Xiong, L, Zhang, H.M, Song, J, Xia, M.S
• Format: Article
• Language: English
• Subjects: Animal productions; average daily gain; Biological and medical sciences; breast muscle; broiler chickens; Chick; chicks; diet; Feed and pet food industries; Food industries; Fundamental and applied biological sciences. Psychology; glutathione peroxidase; growth performance; intravenous injection; liver; Nano elemental selenium; selenium; Selenium retention; Sodium selenite; Terrestrial animal productions; Vertebrates
• ISSN: 0377-8401; 1873-2216
• DOI: 10.1016/j.anifeedsci.2012.08.010

Two experiments were performed to explore the selenium retention of Nano elemental selenium (Nano-Se) in Arbor Acre male broiler chickens as compared with sodium selenite. A 2×4 factorial arrangement with 0.15, 0.30, 0.60 and 1.20mg/kg dietary Se from Nano-Se or sodium selenite added to a maize–soybean meal diet was conducted to study the effects of Se source and level on growth performance, serum glutathione peroxidase (GSH-Px) activity, Se concentration in serum and tissue. Furthermore, selenium retention of Nano-Se and selenite was determined in chicks by the oral or intravenous administration of the radiolabeled Se and the in vivo ligated intestinal loop procedure. As for selenite, average daily gain (ADG), gain/feed and survival ratio reached a plateau at the Se concentration of 0.15–0.30mg/kg and then declined as supplemental selenite increased. As for Nano-Se, ADG, gain/feed and survival ratio reached a plateau at the Se concentration of 0.15–1.20mg/kg. Survival ratio, ADG and gain/feed increased quadratically (P