JDS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Journal of Dairy Science Vol. 55 No. 10 1454-1460
© 1972 by American Dairy Science Association ®
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Waterman, R.
Right arrow Articles by Schultz, L. H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Waterman, R.
Right arrow Articles by Schultz, L. H.

Nicotinic Acid Treatment of Bovine Ketosis II. Effects on long-Chain Fatty Acid Compositions of Plasma Lipid Fractions1

R. Waterman and L. H. Schultz

Department of Dairy Science, University of Wisconsin, Madison 53706

ABSTRACT

Long chain fatty acid compositions of triglycerides (TG), nonesterified fatty acids (NEFA), cholesterol esters (CE), and phospholipids (PL) were examined from seven normal cows, six subclinically ketotic cows, and seven clinically ketotic cows. Ketotic cows were treated with 160 g nicotinic acid orally in four 40-g doses at 2-hr intervals. Ketosis was characterized by elevated percentages of C16:0 in TG and PL and elevated C18:1 percentages in all lipid fractions while C18:0 percentages were depressed in all lipid fractions. Rebound effects of nicotinic acid, noted 2 days after treatment, included inceased percentages of C18:1 in TG and NEFA fatty acids, indicating accelerated lipid mobilization. Decreasing percentages of C18:1 in TG and NEFA after Day 2 indicated the return to normal was associated with decreasing adipose mobilization. Triglyceride C18:0 was selectively taken up by the mammary gland under all condition , while NEFA C18:1 was selectively taken up only during periods of excess adipose mobilization. Following nicotinic acid treatment of ketosis, milk fat C14:0 and C16:0 percentages rose while percentages of C18:1 fell.

FOOTNOTES

1 Research supported by the College of Agricultural and Life Sciences, University of Wisconsin, Madison, and by Grant AM 08546 from the National Institute of Arthritis and Metabolic Diseases.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1972 by the American Dairy Science Association ®.