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The responses to vitamin E (dl-α-tocopherol) and pasture were examined in cows producing spontaneously oxidized flavour (SOF) milk. In a field trial, with four chronic SOF herds, dl-α-tocopherol at 0, 700 and 3000 IU/cow/day was fed in a change-over design with 2-week periods followed by access to spring pasture for four weeks. Milk flavour improved with level of dietary dl-α-tocopherol and SOF was minimal on pasture. Milk dl-α-tocopherol for treatments 0, 700, 3000 IU/cow/day and pasture were 0.58, 0.75, 0.55, 0.61 ug/ml and for plasma were 4.16, 6.50, 5.03, 7.16 ug/ml. Changes in milk and plasma levels did not correlate …
