QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Purchase Article View Shopping Cart Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Holmes, A. D. Articles by Satterfield, G. H. Search for Related Content PubMed Articles by Holmes, A. D. Articles by Satterfield, G. H.

The Ascorbic Acid Content of Cow's Milk During Pregnancy

Research Laboratories, The E. L. Patch Company; H. P. Hood and Sons, Boston, Massachusetts, and Department of Chemistry, University of North Carolina, Raleigh

Milk produced by Guernsey and Holstein cows at various stages of pregnancy was assayed for its ascorbic acid content.

The highest average value was found in the milk of the Guernsey cows during the first month of pregnancy, namely, 22.47 mg. per liter. A gradual but not consistent decrease in the average vitamin C content was observed in the milk from Guernsey cows as pregnancy advanced.

The data obtained for the Holstein cows were not in agreement with those yielded by the Guernsey cows. The highest ascorbic acid content of the milk from this group of cows was found in the sixth month of pregnancy. The increase in vitamin C content of milk from the Holstein cows during the fifth, sixth and seventh months of pregnancy is unexplained.

The data obtained in this study indicate that the vitamin C content of milk from Guernsey and Holstein cows tends to decrease with the advance of pregnancy, but at all stages of pregnancy different cows show considerable variation.