Document Detail


Technical note: forms and route of vitamin C supplementation for cows.
MedLine Citation:
PMID:  10480110     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to compare the effect of multiple oral supplementation of two forms of vitamin C on plasma ascorbic acid concentrations in dairy cows. Vitamin C was administrated at the rate of 40 g/d during a 5-d period. The supplements were vitamin C in the form of a fine powder and vitamin C coated with ethyl cellulose. In addition, another group of cows provided with vitamin C in the form of fine powder through an abomasal fistula was enrolled in the study. The effect of vitamin C supplementation was assessed by the change in plasma ascorbic acid concentrations during a 5-d period of vitamin C supplementation. A tendency existed for cows that were dosed with vitamin C in the abomasum to have higher ascorbic acid than cows supplemented orally. In the abomasum-dosed cows, plasma ascorbic acid value varied between 3.6 and 4.4 micrograms/ml; the maximum ascorbic acid content was 4.4 micrograms/ml at 54 h. Cows dosed orally with vitamin C coated with ethyl cellulose had higher plasma ascorbic acid concentrations than did cows that received vitamin C in the form of fine powder. In the former group, the maximum ascorbic acid concentration occurred at 30 h after dosing (5 micrograms/ml).
Authors:
M Hidiroglou
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of dairy science     Volume:  82     ISSN:  0022-0302     ISO Abbreviation:  J. Dairy Sci.     Publication Date:  1999 Aug 
Date Detail:
Created Date:  1999-10-04     Completed Date:  1999-10-04     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  2985126R     Medline TA:  J Dairy Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1831-3     Citation Subset:  IM    
Affiliation:
Centre for Food and Animal Research, Agriculture and Agri-Food Canada, Ottawa, ON, Canada.
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MeSH Terms
Descriptor/Qualifier:
Abomasum
Animals
Ascorbic Acid / administration & dosage*,  blood
Cattle / physiology*
Cellulose / analogs & derivatives
Dietary Supplements*
Dosage Forms
Female
Powders
Rumen
Chemical
Reg. No./Substance:
0/Dosage Forms; 0/Powders; 50-81-7/Ascorbic Acid; 9004-34-6/Cellulose; 9004-57-3/ethyl cellulose

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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