Incorporation of alpha-tocopherol and linoleic acid in fresh lambs by feeding chemically treated dietary supplements containing dl-alpha-tocopheryl acetate and sunflower oil.
The effects of feeding chemically treated dietary supplements (CTDS) containing sunflower oil and dl-alpha-tocopheryl acetate (TA) on alpha-tocopherol content and fatty acid profile in edible tissues of lambs were estimated. Compared with lambs fed control diet (CD), lambs fed CD plus 250 IU of either TA or CTDS increased serum alpha-tocopherol. The CTDS-fed lambs further increased serum alpha-tocopherol by 29% over those fed CD plus 250 IU of TA. Lambs supplemented with TA or CTDS increased alpha-tocopherol in muscle and adipose tissues as compared with lambs fed CD. The CTDS-fed lambs had higher levels of alpha-tocopherol in gluteus medius (7.55 vs 6.05 mug/g), psoas major (7.43 vs 6.02 mug/g), and subcutaneous fat (12.6 vs 9.98 mug/g) compared with the TA-fed lambs. Feeding lambs CTDS also substantially increased levels of linoleic acid in the adipose tissues while decreasing the content of palmitic and oleic acids.
Lee
Jung Hoon
JH
Department of Food Science and Technology and Department of Animal Science, University of Tennessee, Knoxville, Tennessee 37996, USA. leej@fvsu.edu
Waller
John C
JC
Melton
Sharon L
SL
Saxton
Arnold M
AM
D000273:Adipose Tissue / Q000737:chemistry; D000818:Animals; D004032:Diet; D019587:Dietary Supplements; D005227:Fatty Acids / Q000032:analysis; D019787:Linoleic Acid / Q000032:analysis / Q000378:metabolism*; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000737:chemistry; D010938:Plant Oils / Q000008:administration & dosage* / Q000493:pharmacokinetics; D012756:Sheep; D000074242:Sunflower Oil; D024505:Tocopherols; D024502:alpha-Tocopherol / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000032:analysis / Q000097:blood / Q000378:metabolism* / Q000493:pharmacokinetics
D005227:Fatty Acids; D010938:Plant Oils; D000074242:Sunflower Oil; D019787:Linoleic Acid; D024502:alpha-Tocopherol; D024505:Tocopherols