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


     

Journal of Dairy Science Vol. 67 No. 7 1457-1467
© 1984 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 Fettman, M. J.
Right arrow Articles by Zinn, S. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Fettman, M. J.
Right arrow Articles by Zinn, S. A.

Restricted Dietary Chloride with Sodium Bicarbonate Supplementation for Holstein Cows in Early Lactation

M. J. Fettman1, L. E. Chase, J. Bentinck-Smith2, C. E. Coppock3 and S. A. Zinn4

Department of Animal Science, Cornell University, Ithaca, NY 14853

ABSTRACT

Over 2 wk, beginning 3 wk postpartum, daily changes of feed and water intake and milk production and composition were monitored in 25 cows allotted randomly among four dietary treatment groups differing in sodium chloride, sodium bicarbonate, and ad libitum supplementation by salt block. The basic complete diet was 54% corn silage, 27% shelled corn, and 16% soybean meal, dry basis. The four dietary treatments were control, .42% chloride; low, .10% chloride; low plus salt block, complete ration same as low with ad libitum salt block consumption; and control plus .7% sodium bicarbonate. Differences were consistently significant only for electrolyte concentrations in blood serum, urine, and feces of cows fed the low diet. In blood serum, chloride declined from 96.4 ± 3.5 to 83.4 ± 4.5 meq/liter, and serum total carbon dioxide rose from 28.4 ± 1.9 to 36.9 ± 2.6 meq/liter. Anion gap increased from 19.0 ± 2.9 to a high of 23.4 ± 3.5 meq/liter in blood serum at day 11. Metabolic derangements of cows fed the low diet may be summarized as subclinical primary hypochloremic, secondary hypokalemic metabolic alkalosis.

FOOTNOTES

1 Department of Clinical Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins 80523.

2 Department of Clinical Pathology, College of Veterinary Medicine.

3 Department of Animal Science, Texas A&M University, College Station 77843.

4 Department of Animal Science, Michigan State University, East Lansing 48824.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1984 by the American Dairy Science Association ®.