| Bioavailability of organic and inorganic zinc sources in male broilers. | |
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MedLine Citation:
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PMID: 23155021 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The objective of the current study was to determine the bioavailability of an organic zinc source (Availa-Zn) compared with zinc sulfate in a European-type broiler diet. A total of 480 one-day-old male Ross 308 broilers were housed in 48 digestibility cages (10 birds per cage), being randomly divided over 9 treatments. At d 3, the number of birds was standardized to 8. Birds were fed a basal wheat-maize-soya diet (containing 33.5 mg of Zn/kg) with different supplementation levels of zinc (reference zinc source: inorganic zinc sulfate: 0, 5, 10, 15, 20, and 40 mg of Zn/kg of feed; test zinc source: Availa-Zn: 0, 5, 10, 15 mg of Zn/kg of feed). Production performance and tibia zinc content were measured. There were no differences in production performance between the different zinc sources when fed to broilers until 21 d of age. Tibia zinc content was increased linearly with the dietary zinc content up to 20 mg/kg zinc sulfate. The relative biological value of organic zinc was 1.64 compared with zinc sulfate as a reference zinc source (1.00), as indicated by the slope ratio of the linear response curves for both zinc sources, using tibia zinc content as a response parameter. In a practical European broiler diet, the organic Availa-Zn had a higher bioavailability than inorganic zinc sulfate. |
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Authors:
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L Star; J D van der Klis; C Rapp; T L Ward |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Poultry science Volume: 91 ISSN: 0032-5791 ISO Abbreviation: Poult. Sci. Publication Date: 2012 Dec |
Date Detail:
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Created Date: 2012-11-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401150 Medline TA: Poult Sci Country: United States |
Other Details:
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Languages: eng Pagination: 3115-20 Citation Subset: IM |
Affiliation:
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Schothorst Feed Research, PO Box 533, 8200 AM Lelystad, the Netherlands; |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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