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Journal of Dairy Science Vol. 55 No. 2 204-207
© 1972 by American Dairy Science Association ®
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Milk Fat with Increased Polyunsaturated Fatty Acids

R. D. Plowman, J. Bitman, C. H. Gordon, L. P. Dryden, H. K. Goering and T. R. Wrenn

Dairy Cattle Research Branch, Animal Science Research Division, ARS, USDA, Beltsville, Maryland 20705

L. F. Edmondson, R. A. Yoncoskie and F. W. Douglas, Jr.

and Dairy Products Laboratory, Eastern Marketing and Nutrition Division, ARS, USDA, Washington, D.C. 20250

ABSTRACT

Milk fat with increased polyunsaturated fatty acids was produced by feeding cows a diet containing a formaldehyde-treated safflower oil-casein particle. This treatment protected the linoleic acid of the safflower oil from hydrogenation in the rumen, and the linoleic acid content of the milk increased from 3% to 35% of the total fatty acids. Total milk production was not altered, but fat content of the milk increased 1.0 to 1.5 percentage units.






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Copyright © 1972 by the American Dairy Science Association ®.