Catalog Home Page

Health beneficial long chain omega-3 fatty acid levels in Australian lamb managed under extensive finishing systems

Ponnampalam, E.N., Butler, K.L., Jacob, R.H., Pethick, D.W., Ball, A.J., Hocking Edwards, J.E., Geesink, G. and Hopkins, D.L. (2014) Health beneficial long chain omega-3 fatty acid levels in Australian lamb managed under extensive finishing systems. Meat Science, 96 (2). pp. 1104-1110.

[img]
Preview
PDF - Published Version
Download (319kB)
Link to Published Version: http://dx.doi.org/10.1016/j.meatsci.2013.04.007
*Subscription may be required

Abstract

The variation in levels of the health claimable long chain omega-3 fatty acids, eicosapentaenoic acid (EPA, 20:5n-3) plus docosahexaenoic acid (DHA, 22:6n-3) across production regions of Australia was studied in 5726 lambs over 3 years completed in 87 slaughter groups. The median level of EPA plus DHA differed dramatically between locations and sometimes between slaughters from the same location. The ratio of EPA plus DHA from lambs with high values (97.5% quantile) to lambs with low values (2.5% quantile) also differed dramatically between locations, and between slaughters from the same location. Consistency between years, at a location, was less for the high to low value ratio of EPA plus DHA than for the median value of EPA plus DHA. To consistently obtain high levels of omega-3 fatty acids in Australian lamb, there must be a focus on lamb finishing diets which are likely to need a supply of α-linolenic acid (18:3n-3), the precursor for EPA and DHA.

Publication Type: Journal Article
Murdoch Affiliation: School of Veterinary and Life Sciences
Publisher: Elsevier BV
Copyright: © 2013 The Authors.
URI: http://researchrepository.murdoch.edu.au/id/eprint/18493
Item Control Page Item Control Page

Downloads

Downloads per month over past year