Journal article

Comparison of grain-based diet supplemented with synthetic vitamin E and lucerne hay-based diet on blood oxidative stress biomarkers and lamb meat quality

Benjamin WB Holman, Gianluca Baldi, Surinder S Chauhan, David L Hopkins, Greg R Seymour, Frank R Dunshea, Damian Collins, Eric N Ponnampalam



Individually-housed lambs were used to compare the effect of a grain-based diet supplemented with moderate (MOD) or supranutritional (SUP) levels of vitamin E and selenium, and a lucerne hay-based diet (LUC) on plasma-oxidative stress biomarkers, muscle pH decline and meat quality. Lambs fed LUC had different reactive oxygen metabolite concentrations and biological antioxidant potentials to the MOD and SUP treatment groups. All plasma oxidative stress markers decreased in concentration across the four sampling time points measured over the eight week feeding study, except biological antioxidant potential (BAP). Diet did not impact on lamb muscle pH decline traits. Of the meat quality traits ..

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Funding Acknowledgements

The authors are grateful for the support of the Victorian Government (Department of Jobs, Precincts and Regions); NSW Department of Primary Industries (NSW DPI); University of Melbourne; and the Australian Meat Processor Corporation (AMPC). We thank the staff of these organisations and our commercial abattoir partner for their assistance. Also, the contributions of Dr Remy van de Ven (NSW DPI) towards the statistical analysis of data for the preparation of this paper are especially acknowledged.