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


     

Journal of Dairy Science Vol. 50 No. 5 692-695
© 1967 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 HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Orskov, E. R.
Right arrow Articles by Moore, L. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Orskov, E. R.
Right arrow Articles by Moore, L. A.

Effect of Ethanol Infusion on Milk Fat Content and Composition and on Volatile Fatty Acids in the Rumen Liquor1

E. R. Orskov2 and R. W. Hemken

Department of Dairy Science, University of Maryland, College Park

L. A. Moore

Dairy Cattle Research Branch, Animal Husbandry Research Division, USDA, Beltsville, Maryland

ABSTRACT

Three lactating dairy cows received a complete pelleted ration of 20% alfalfa hay and 80% concentrate, a diet which resulted in depressed milk fat percentages. Infusion of ethanol into the rumen (approximately 875 g/day) resulted in increases in the milk fat per cent, increased proportion of acetic, isovaleric, and valeric acids, and appearance of caproic acid up to approximately 7 molar %. The proportion of propionic acid was depressed. Blood ethanol increased from traces to 5 meq/liter. Concentration of ethanol in the rumen decreased with length of infusion period, suggesting an adaptation effect.

FOOTNOTES

1 University of Maryland Scientific Article no. A-1319. Contribution no. 3865 of the Maryland Agricultural Experiment Station.

2 Recipient of a scholarship from the Carlsberg Foundation, Copenhagen, Denmark. Address: Rowett Research Institute, Bucksburn, Aberdeen, Scotland.




This article has been cited by other articles:


Home page
 J DAIRY SCIHome page
N. B. Kristensen, A. Storm, B. M. L. Raun, B. A. Rojen, and D. L. Harmon
Metabolism of Silage Alcohols in Lactating Dairy Cows
J Dairy Sci, March 1, 2007; 90(3): 1364 - 1377.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1967 by the American Dairy Science Association ®.