標(biāo)題: Effect of Organically Complexed Trace Minerals on Broiler [打印本頁] 作者: monica 時(shí)間: 2008-8-28 16:22 標(biāo)題: Effect of Organically Complexed Trace Minerals on Broiler Y.M.Bao, M.Choct,P.A.Iji,and K. Bruerton
2007 J.Appl.Poult.Res.16:448-455
Supplementation of trace minerals with a large safety margin in broiler chickens has resulted in a high level mineral excretion that ends up in the environment. Organically complexed trace minerals (organic mineral) may be able to replace the inorganic trace minerals, because the former appear to have a greater bioavailability. Therefore, a 29-d cage study that included diets with supplemental trace minerals from organic and inorganic sources based on a trace mineral deficient control diet was conducted to examine the possible response of broiler chickens to organic mineral supplements. The results showed that supplementation with 4 mg of Cu and 40 mg each of Fe, Mn, and Zn from organic source may be sufficient for normal broiler growth to 29d of age. It is possible to use these lower levels of organic trace minerals in broiler diets to avoid high level of trace mineral excretion.