J. Appl. Poult. Res.
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J APPL POULT RES 2007. 16:448-455
© 2007 Poultry Science Association
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Research Reports

Effect of Organically Complexed Copper, Iron, Manganese, and Zinc on Broiler Performance, Mineral Excretion, and Accumulation in Tissues

Y. M. Bao*, M. Choct{dagger},1, P. A. Iji* and K. Bruerton{ddagger}

* School of Environmental and Rural Science, and {dagger} Australian Poultry Cooperative Research Centre, University of New England, Armidale, New South Wales 2351, Australia; and {ddagger} Protea Park Nutrition, Palm Beach, Sorrento, Queensland 4217, Australia

Correspondence: 1 Corresponding author: piji{at}une.edu.au

Supplementation of trace minerals with a large safety margin in broiler chickens has resulted in a high level of mineral excretion that ends up in the environment. Organically complexed trace minerals (organic minerals) 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 sources may be sufficient for normal broiler growth to 29 d of age. It is possible to use these lower levels of organic trace minerals in broiler diets to avoid high levels of trace mineral excretion.

Key Words: broiler • organic copper • iron • manganese • zinc • mineral excretion






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