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The effect of environmental temperature and humidity on the rectal temperature of calves

Published online by Cambridge University Press:  27 March 2009

W. R. Beakley
Affiliation:
The Hannah Dairy Research Institute, Kirkhill, Ayr
J. D. Findlay
Affiliation:
The Hannah Dairy Research Institute, Kirkhill, Ayr

Extract

1. The rectal temperatures of three 4-month-old Ayrshire bull calves were measured in individual 6 hr. daily exposures to 15, 20, 25, 30, 35 and 40° C. dry-bulb temperature at low humidity (17 mg./l. absolute humidity) and to 30, 35 and 40° C. at high humidity (7 mg./l. saturation deficit). The experiments on each animal lasted 45 consecutive days and consisted of five replications of these nine environmental conditions. Measurements of rectal temperature were made every 5 min.

2. The rectal temperatures of the animals rose with increasing environmental temperature and humidity.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1955

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References

REFERENCES

Beakley, W. R. (1953). The interchange of heat between the bovine and its environment. Ph.D. Thesis, University of Glasgow.Google Scholar
Beakley, W. R. & Findlay, J. D. (1953). J. Physiol. 121, 47P.Google Scholar
Beakley, W. R. & Findlay, J. D. (1955). J. Agric. Sci. 45, 353.CrossRefGoogle Scholar
Brody, S. (1948). Res. Bull. Mo. Agric. Exp. Sta. no. 423.Google Scholar
Burckard, E., Dontcheff, L. & Kayser, C. (1933). Ann. Physiol. 9, 303.Google Scholar
Burton, A. C. (1935). J. Nutr. 9, 261.CrossRefGoogle Scholar
Du Bois, E. F. (1948). Fever and Body Temperature Regulation. Springfield, Illinois, U.S.A.: A. Thomas.Google Scholar
Findlay, J. D. (1950). Bull. Hannah Dairy Res. Inst. no. 9.Google Scholar
Findlay, J. D. (1953). N.A.A.S. Quart. Rev. 19, 285.Google Scholar
Findlay, J. D. (1955). Met. Monogr. 8 (in the Press).Google Scholar
Findlay, J. D. & Beakley, W. R. (1954). ‘Environmental Physiology of Farm Animals’ in Recent Advances in Physiology of Farm Animals, ed. Hammond, J.. London: Butterworths.Google Scholar
Hardy, J. D. & Du Bois, E. F. (1938). J. Nutr. 15, 461.CrossRefGoogle Scholar
Herring, V. & Brody, S. (1938). Res. Bull. Mo. agric. Exp. Sta. no. 274.Google Scholar
Hutchison, H. G. & Mabon, R. M. (1954). J. Agric. Sci. 44, 121.CrossRefGoogle Scholar
Kendall, S. B. (1948). Vet. J. 104, 112.Google Scholar
Kriss, M. (1921). J. Agric. Res. 21, 1.Google Scholar
Phillips, R. W. (1948). F.A.O. Agric. Stud. no. 1.Google Scholar
Phillips, R. W. (1950 a). F.A.O. Development Paper, no. 6.Google Scholar
Phillips, R. W. (1950 b). F.A.O. Development Paper, no. 8.Google Scholar
Rieck, R. F. & Lee, D. H. K. (1948 a). J. Dairy Res. 15, 219.CrossRefGoogle Scholar
Rieck, R. F. & Lee, D. H. K. (1948 b). J. Dairy Res. 15, 227.CrossRefGoogle Scholar
Worstell, D. M. & Brody, S. (1953). Res. Bull. Mo. Agric. Exp. Sta. no. 515.Google Scholar