HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Allen, R. S. Articles by Zaletel, J. H. Search for Related Content PubMed Articles by Allen, R. S. Articles by Zaletel, J. H.

The Effect of Various Dietary Lipids on the Blood Plasma Polyunsaturated Fatty Acids of Dairy Calves¹

Departments of Chemistry and Animal Husbandry, Iowa Agricultural Experiment Station, Ames

ABSTRACT

It is generally recognized that certain of the unsaturated fatty acids are important in the prevention of fat-deficiency symptoms in various animal species. Linoleic acid (3) or arachidonic acid (17) will prevent characteristic skin lesions and will allow good growth in rats fed fat-deficient diets. Greenberg et al. (7) have demonstrated that methyl arachidonate has about 3.5 times the biopotency of linoleic acid when fed to fat-deficient rats. Linolenic acid, on the other hand, has only slight growth-promoting action when fed alone to fat-depleted rats. However, a combination of this acid with suboptimal levels of linoleic acid supports growth equal to that resulting from an amount of linoleic acid equivalent to the combined total of the two acids (8).

Lambert et al. (11) and Cunningham and Loosli (5) recently reported the development of a fat deficiency in young dairy calves. The deficiency symptoms were prevented and/or corrected by feeding various lipids, but the relationship of polyunsaturated fatty acids to this syndrome was not entirely clear.

¹ Journal Paper No. J-2859 of the Iowa Agricultural Experiment Station, Ames. Project No. 814.

² Present address: Mercy Hospital, Des Moines, Iowa.