Niacin Absorption from the Rumen
Abstract
Absorption of niacin from the rumen was tested in vivo using a buffer solution that contained either nicotinic acid or nicotinamide. The experimental design was a 3 × 3 Latin square with three midlactation, ruminally cannulated Holstein cows. Orthogonal comparisons were control versus niacin and nicotinic acid versus nicotinamide. Nicotinamide was more rapidly absorbed from the rumen than nicotinic acid; this may have been caused by differences in the dissociation constants of the compounds. The effects that differential absorption may have on ruminal fermentation and animal metabolism require further study.
Department
Biological Sciences
Publication Date
10-1-1991
Journal Title
Journal of Dairy Science
Publisher
Elsevier
Digital Object Identifier (DOI)
Document Type
Article
Recommended Citation
Erickson, P. S., M. R. Murphy, C. S. McSweeney, and A. M. Trusk. 1991. Niacin absorption from the rumen. J. Dairy Sci. 74:3492-3495.