1 March 2013 Short Communication: Erythrocytes assayed early ante mortem can predict adipose tissue and muscle trans-18:1 isomeric profiles of steers fed red clover silage supplemented with flaxseed
C. Mapiye, M. E. R. Dugan, T. D. Turner, D. C. Rolland, J. A. Basarab, V. S. Baron, T. A. McAllister, H. C. Block, B. Uttaro, J. L. Aalhus
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Abstract

Mapiye, C., Dugan, M. E. R., Turner, T. D., Rolland, D. C., Basarab, J. A., Baron, V. S., McAllister, T. A., Block, H. C., Uttaro, B. and Aalhus, J. L. 2013. Short Communication: Erythrocytes assayed early ante mortem can predict adipose tissue and muscle trans-18:1 isomeric profiles of steers fed red clover silage supplemented with flaxseed. Can. J. Anim. Sci. 93: 149-153. Steers were fed a red clover silage-based diet with or without flaxseed to evaluate over time the effects of flaxseed supplementation on erythrocytes (ERC) trans(t)18:1 isomers composition and their relationships to adipose tissue and muscle t18:1 profiles at slaughter. Concentrations of most ERC t18:1 isomers in steers fed flaxseed increased (P<0.01) markedly in the first 2 mo and increased gradually thereafter. Strong (P<0.01) correlations of t9-, t10- and t11-18:1 isomers were observed from month 2 to 6 between ERC and beef tissues collected at slaughter from steers fed flaxseed. Findings suggest that ERC sampled as early as 2 mo into the feeding period can be indicative of variation in beef t18:1 isomeric profile at a later slaughter date when feeding red clover silage with flaxseed.

C. Mapiye, M. E. R. Dugan, T. D. Turner, D. C. Rolland, J. A. Basarab, V. S. Baron, T. A. McAllister, H. C. Block, B. Uttaro, and J. L. Aalhus "Short Communication: Erythrocytes assayed early ante mortem can predict adipose tissue and muscle trans-18:1 isomeric profiles of steers fed red clover silage supplemented with flaxseed," Canadian Journal of Animal Science 93(1), 149-153, (1 March 2013). https://doi.org/10.1139/CJAS2012-054
Received: 9 May 2012; Accepted: 1 November 2012; Published: 1 March 2013
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KEYWORDS
acide vaccénique
Beef tissues
fat
feeding period
isomères t18:1
matière grasse
période d'engrais
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