title: A reduced cost strategy for enriching chicken meat with omega-3 long chain polyunsaturated fatty acids using dietary flaxseed oil.
abstract: 1. This study aimed to determine the minimal duration required for feeding male broilers (Cobb 500) with a flaxseed oil diet while still retaining long chain omega-3 polyunsaturated fatty acid (n-3 LCPUFA) accumulation in the meat at a desirable level. 2. Three groups of broilers (60 each) were fed on a 3% flaxseed oil (high α-linolenic acid (ALA)) diet for either 6, 4 or 2 weeks prior to slaughter. During the remaining time they were maintained on a 3% macadamia oil (low ALA) diet. A fourth group (control, n = 60) was fed on a commercial diet for 6 weeks. 3. No significant difference was observed in growth performance of broilers between groups. The amounts of total n-3 and n-3 LCPUFA in breast and thigh meat were not different between broilers fed the flaxseed oil diet for 4 and 6 weeks, but they were lower (P < 0.001) in those fed the flaxseed diet for only 2 weeks. 4. These results suggest comparable levels of n-3 LCPUFA in the meat can be achieved by only feeding the flaxseed oil diet in the last 3-4 weeks of the growth period; this would result in a ≥ 9.4% reduction in the use of flaxseed oil compared to 6 weeks of feeding; thereby reducing the cost of the enrichment process.
authors.affiliation: a FOODplus Research Centre, School of Agriculture, Food and Wine , The University of Adelaide , Adelaide , Australia.
authors.forename: K
authors.identifier: http://orcid.org/0000-0002-6864-5783
authors.initials: K
authors.lastname: Kanakri
authors.affiliation: a FOODplus Research Centre, School of Agriculture, Food and Wine , The University of Adelaide , Adelaide , Australia.
authors.forename: J
authors.initials: J
authors.lastname: Carragher
authors.affiliation: b South Australian Research and Development Institute (SARDI) , Roseworthy Campus , Roseworthy , Australia.|c School of Animal and Veterinary Sciences , The University of Adelaide , Adelaide , Australia.
authors.forename: R
authors.identifier: http://orcid.org/0000-0002-4714-5173
authors.initials: R
authors.lastname: Hughes
authors.affiliation: a FOODplus Research Centre, School of Agriculture, Food and Wine , The University of Adelaide , Adelaide , Australia.
authors.forename: B
authors.identifier: http://orcid.org/0000-0002-9021-6790
authors.initials: B
authors.lastname: Muhlhausler
authors.affiliation: a FOODplus Research Centre, School of Agriculture, Food and Wine , The University of Adelaide , Adelaide , Australia.
authors.forename: R
authors.identifier: http://orcid.org/0000-0002-8750-525X
authors.initials: R
authors.lastname: Gibson
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000822:Animal Husbandry / Q000191:economics* / Q000379:methods; D000818:Animals; D002645:Chickens / Q000502:physiology*; D004032:Diet / Q000662:veterinary; D019587:Dietary Supplements / Q000032:analysis; D015525:Fatty Acids, Omega-3 / Q000008:administration & dosage*; D008043:Linseed Oil / Q000008:administration & dosage*; D008297:Male; D008460:Meat / Q000032:analysis*; D011897:Random Allocation; D013997:Time Factors
chemical_list: D015525:Fatty Acids, Omega-3; D008043:Linseed Oil
keywords: ALA; broiler; feeding duration; n-3 LCPUFA