Lipid stability and meat colour of beef from pasture- and grain-fed cattle with or without vitamin E supplement

摘要

Meat from pasture-fed cattle can have high contents of α-tocopherol and other anti-oxidants originating from naturally occur- ring compounds present in grasses. However, meat from pasture-fed cattle may have an increased demand for endogenous anti- oxidants because of its high content of polyunsaturated fatty acids, which in turn, may affect its colour and lipid stability. In the work described, we evaluated the effects of pasture-feeding alone and with vitamin E supplementation and compared the findings with those obtained for grain-fed cattle (predominantly sorghum) with and without supplementation.