| Trace mineral interactions in broiler chicken diets. | |
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MedLine Citation:
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PMID: 20390575 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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1. The aim of the present study was to demonstrate trace mineral interactions among organic copper, iron, manganese and zinc (Cu, Fe, Mn and Zn) in broiler chickens. 2. Three experiments were conducted using a control diet which was deficient in Cu, Fe, Mn and Zn. 3. In experiment 1, the control diet, supplemental organic Cu, Fe alone and combined diets, were randomly fed to 4 groups of one-day-old Cobb broilers (each group had 6 replicates of 4 birds). 4. In experiment 2, the control diet, supplemental organic Mn and Zn alone or combined with Cu, Fe diets and corresponding inorganic combined diet, were randomly fed to 6 groups (each group had 8 replicates of 6 birds). 5. In experiment 3, the depletion of organic Zn, the depletion of inorganic Zn and normal Zn treatments were carried out in three groups of one-day-old Cobb broilers (each group had 8 replicates of 6 birds). 6. Adding organic Cu, Fe and Mn alone or combined to Zn deficient diets did not significantly improve bird performance and were mostly excreted. Supplemental organic Zn alone or combined with other elements significantly increased feed intake, body weight gain and tibia bone length. However, supplemental organic Fe alone or combined with Cu significantly increased feed intake but had no obvious effect on body weight gain. The organic Fe supplementation resulted in a wider tibia. 7. Depletion of organic and inorganic Zn resulted in decreased feed intake, body weight gain and total tibia bone Zn content. Zinc deficiency did not affect the uptake of organic Fe by tibia bone but reduced its total Fe content. 8. Zinc is the first limiting element among these 4 trace minerals. Adding Mn, Cu and Fe to Zn deficient diets did not stimulate bird performance. Surplus organic Fe and Cu resulted in increased feed intake and increased tibia bone Fe content but did not contribute to bird performance. |
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Authors:
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Y M Bao; M Choct; P A Iji; K Bruerton |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: British poultry science Volume: 51 ISSN: 1466-1799 ISO Abbreviation: Br. Poult. Sci. Publication Date: 2010 Feb |
Date Detail:
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Created Date: 2010-04-14 Completed Date: 2010-07-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 15740290R Medline TA: Br Poult Sci Country: England |
Other Details:
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Languages: eng Pagination: 109-17 Citation Subset: IM |
Affiliation:
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School of Environmental and Rural Science, University of New England, Armidale, Australia. ybao@une.edu.au |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Body Weight / physiology* Chickens / growth & development*, metabolism Copper / metabolism Eating / physiology Iron / metabolism Male Manganese / metabolism Random Allocation Tibia / anatomy & histology Trace Elements / metabolism* Zinc / metabolism |
| Chemical | |
Reg. No./Substance:
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0/Trace Elements; 7439-89-6/Iron; 7439-96-5/Manganese; 7440-50-8/Copper; 7440-66-6/Zinc |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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