Supra-nutritional vitamin E supplementation for 28days before slaughter maximises muscle vitamin E concentration in finisher pigs
2015
Kim, J.C. | Jose, C.G. | Trezona, M. | Moore, K.L. | Pluske, J.R. | Mullan, B.P.
A 4×3 factorial experiment (n=8 pigs per treatment combination) was conducted with 96 female Landrace×Large White pigs to examine the required level of dietary vitamin E and optimum feeding duration before slaughter to maximise muscle vitamin E content in the Longissimus thoracis et lumborum (LTL) muscle. The respective factors were four dietary levels of vitamin E (supplemented as dl-α-tocopheryl acetate; 35, 300, 500, and 700IU/kg) and three feeding durations (14, 28 and 42days before slaughter). Vitamin E concentration in the LTL was maximised at 6mg/kg, which was achieved by feeding a 700IU vitamin E diet for 28days before slaughter (P<0.001). There was no further increase in the vitamin E content of the LTL by feeding the high vitamin E diet more than 28days before slaughter.
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