HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) 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 McCay, C. M. Search for Related Content PubMed Articles by McCay, C. M.

The Hemoglobin and Total Phosphorus in the Blood of Cows and Bulls

Animal Nutrition Laboratory, Cornell University, Ithaca, New York

ABSTRACT

By means of over a thousand determinations we have shown that the blood of the normal cow contains 10.9 ± 0.86 grams of hemoglobin per 100 cc. of blood. The blood of mature bulls is significantly higher in hemoglobin than that of cows. It contains 12.8 ± 0.8 grams per 100 cc. There is no relation between the hemoglobin of the cow and the following variables: breed, milk production, fat production, and the prolongation of the lactation period. There is no change in the hemoglobin of the blood that can be related to the period of gestation or lactation. No differences were found in total phosphorus, iron and hemoglobin in the blood of seventy-four cows at the close of the winter months and after a two-months' period of exposure to pasture or sunshine. No influence of an eighteen-months' feeding period with three levels of protein upon the hemoglobin, iron or total phosphorus of the blood of lactating cows could be found.