J. Anim Sci.
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J. Anim Sci. 1953. 12:402-413.
© 1953 American Society of Animal Science
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Blood Volume of Farm Animals1

Sam L. Hansard, William O. Butler2, C. L. Comar and C. S. Hobbs

UT-AEC Agricultural Research Program and Tennessee Agricultural Experiment Station3

Abstract

A simple procedure is described for measurement of blood volume of farm animals based on the phosphorus labeled red cell method. The blood volume values are reported for 20 sheep, 28 swine, 18 cattle and SO burros of variable ages and weights, and a summary of these findings, together with those in the literature, is presented for comparative purposes and to provide basic values for the normal animal.

Consideration of these data indicated that:

  1. The newborn of all species studied demonstrated a high blood volume.
  2. In the case of swine, the blood volume decreased significantly with increasing weight and the comparative absolute values were lower than for other species. This is considered as due to the high percent of body fat.
  3. Blood volume values for cattle, sheep and burros over 2–3 months of age showed no effect of age or weight. The values for the burro were highest, while there was little difference between those of cattle and sheep which fell between those for swine and the burro.

It is suggested that the widespread use of the simple procedure here described may lead to correlations which could provide additional measurements of body size, nutritional levels, and physiological status of farm animals.

Footnotes

1 This article is published with the approval of the Director of the University of Tennessee Agricultural Experimental Station. The radiosotopes used in this study were obtained from the U. S. Atomic Energy Commission. The authors wish to express their appreciation to Dr. B. F. Trum and Dr. H. E. Sauberlich for their assistance with the burro studies.

2 A portion of this study was conducted for partial fulfillment of the requirements for the M.S. degree from the University of Tennessee.

3 Animal husbandry department.






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Copyright © 1953 by the American Society of Animal Science.