ORIGINAL PAPER
Effect of white clover rich grass pasture allowance on α-tocopherol and selenium content in cow milk
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1
Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway
 
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National Veterinary Institute, P.O. Box 8156 Dep., 0033 Oslo, Norway
 
 
Publication date: 2007-01-26
 
 
Corresponding author
T. H. Garmo   

Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway
 
 
J. Anim. Feed Sci. 2007;16(Suppl. 1):84-89
 
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ABSTRACT
The objective of this study was to examine the effect of high (HPA, 24 kg DM/cow per day) and low (LPA, 12 kg DM/cow per day) pasture allowance of a white clover rich grass pasture on α-tocopherol and selenium in milk. Four multiparous cows of Norwegian Red were used in a Latin square design. Two experiments were conducted: Experiment 1 in mid pasture season with 7 kg concentrate per cow/day, and experiment 2 in late pasture season with 3 kg concentrate per cow/day. In mid pasture season, milk α-tocopherol concentration was higher on the HPA treatment; 0.63 mg/kg, compared to the LPA treatment; 0.28 mg/kg (P=0.09). However, this effect was not seen in late pasture season. There was no statistically significant effect of pasture allowance on milk selenium (mean 10.6 μg/kg) in these experiments.
 
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ISSN:1230-1388
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