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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Effects of feeding flaxseed or sunflower-seed in high-forage diets on beef production, quality and fatty acid composition
Meat Science, Volume 95, No. 1, Year 2013
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Description
Yearling steers were fed 70:30 forage:concentrate diets for 205. d, with either grass hay (GH) or red clover silage (RC) as the forage source, and concentrates containing either sunflower-seed (SS) or flaxseed (FS), each providing 5.4% oil to diets. Feeding diets containing SS versus FS significantly improved growth and carcass attributes (P<. 0.05), significantly reduced meat off-flavor intensity (P<. 0.05), and significantly increased intramuscular proportions of vaccenic (t11-18:1), rumenic (c9,. t11-CLA) and n-. 6 fatty acids (FA, P<. 0.05). Feeding diets containing FS versus SS produced significantly darker and redder meat with greater proportions of atypical dienes (P<. 0.05). A significant forage. ×. oilseed type interaction (P<. 0.05) was found for n-. 3 FA, α-linolenic acid, and conjugated linolenic acid, with their greatest intramuscular proportions found when feeding the RC-FS diet. Feeding GH versus RC also significantly improved growth and carcass attributes, sensory tenderness (P<. 0.05) and significantly influenced intramuscular FA composition (P<. 0.05), but overall, forage effects on FA profiles were limited compared to effects of oilseed. © 2013.
Authors & Co-Authors
Mapiye, Cletos
Canada, Lacombe
Lacombe Research and Development Centre
Aalhus, Jennifer Lynn
Canada, Lacombe
Lacombe Research and Development Centre
Turner, Tyler Dustin
Canada, Lacombe
Lacombe Research and Development Centre
Rolland, David Charles
Canada, Lacombe
Lacombe Research and Development Centre
Basarab, John A.
Canada, Edmonton
Alberta Agriculture and Rural Development
Baron, Vern S.
Canada, Lacombe
Lacombe Research and Development Centre
McAllister, Tim A.
Canada, Ottawa
Agriculture and Agri-food Canada
Block, Hushton C.
Canada, Ottawa
Agriculture and Agri-food Canada
Uttaro, Bethany A.
Canada, Lacombe
Lacombe Research and Development Centre
López-Campos, Óscar
Canada, Lacombe
Lacombe Research and Development Centre
Proctor, Spencer D.
Canada, Edmonton
University of Alberta
Dugan, Michael Edward Russell
Canada, Lacombe
Lacombe Research and Development Centre
Statistics
Citations: 71
Authors: 12
Affiliations: 4
Identifiers
Doi:
10.1016/j.meatsci.2013.03.033
ISSN:
03091740