Summary
This review, authored by researchers at the University of Bristol and the Institute of Food Research, examines the principal determinants of fatty acid composition in red meat from cattle, pigs, and sheep, with particular attention to the balance between saturated, monounsaturated, and polyunsaturated fatty acids. It discusses how feeding regimes — notably the inclusion of grass, fish oil, or other lipid supplements — can improve the nutritional quality of meat, including elevating n-3 PUFA levels. The paper also addresses the consequent challenge of oxidative instability in PUFA-enriched meat and the protective role of antioxidants such as vitamin E in maintaining colour stability and shelf life.
UK applicability
The paper is directly applicable to UK conditions, drawing on research conducted within UK institutions and relevant to British livestock production systems; its findings on vitamin E supplementation and grass-based feeding have informed subsequent UK and European guidelines on meat quality and animal nutrition.
Key measures
Fatty acid composition (% of total fatty acids); polyunsaturated fatty acid (PUFA) to saturated fatty acid (SFA) ratios; n-6:n-3 ratios; lipid oxidation (TBARS); muscle vitamin E concentration (mg/kg)
Outcomes reported
The paper examines how factors such as species, breed, diet, and fat deposition influence the fatty acid profile of meat, and evaluates the role of dietary antioxidants (particularly vitamin E) in retarding lipid oxidation and improving meat quality during storage and retail display.
Topic tags
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