| Omega-3-enriched broiler meat: 1. Optimization of a production system. | |
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MedLine Citation:
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PMID: 19359702 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Consumer awareness of the health benefits of n-3 fatty acids is growing and is driving consumer demand for enriched food products. Enrichment of meat with n-3 fatty acids is an opportunity for the broiler production sector to add value to their product, but enrichment can increase the cost of production. A study was conducted to determine an optimal production strategy for n-3 enrichment of broiler meat using ground full-fat flaxseed. Low and high levels of dietary flaxseed (10 and 17%, respectively) were fed to broilers for 8 lengths of time (0, 4, 8, 12, 16, 20, 24, or 35 d) before processing at 35 d. Increasing the level or duration decreased feed intake, BW, and the percentage yield of carcass and breast. Flaxseed level and duration of feeding increased feed conversion ratios and the cost of production. Feeding flaxseed at 10 and 17% increased breast n-3 fatty acid levels by 7.65 and 13.70 mg/100 g of meat per day, respectively. In breast meat, the threshold level of 300 mg/g, required in Canada for labeling foods as a source of n-3 fatty acids, was reached at 12.1 and 24.1 d in the high and low flaxseed treatments, respectively. This was due primarily to a tripling of alpha-linolenic acid (18:3n-3) levels in the breast meat. Levels of the long-chain n-3 fatty acid eicosapentaenoic acid increased significantly in the breast meat with increased level and duration of flax feeding, indicating that birds were able to desaturate and elongate alpha-linolenic acid to eicosapentaenoic acid. To minimize cost, while achieving adequate breast meat n-3 enrichment, carcass weight, and meat yield, feeding 10% flaxseed for 24.1 d before processing is recommended as an optimal breast meat n-3 enrichment strategy. The optimal thigh meat n-3 enrichment strategy was to feed 10% flaxseed for 4.54 d before processing. |
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Authors:
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M J Zuidhof; M Betti; D R Korver; F I L Hernandez; B L Schneider; V L Carney; R A Renema |
Publication Detail:
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Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Poultry science Volume: 88 ISSN: 0032-5791 ISO Abbreviation: Poult. Sci. Publication Date: 2009 May |
Date Detail:
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Created Date: 2009-04-10 Completed Date: 2009-06-26 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: 1108-20 Citation Subset: IM |
Affiliation:
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Alberta Agriculture and Rural Development, Agriculture Research Division, Edmonton T6H 5T6, Alberta, Canada. mzuidhof@ualberta.ca |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed
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analysis Animal Nutritional Physiological Phenomena Animals Chickens Diet / veterinary Fatty Acids, Omega-3 / chemistry* Female Flax / chemistry Male Meat / analysis*, standards* Oxidation-Reduction Weight Gain |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids, Omega-3 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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