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Thermal sweating in different body regions of sheep

Published online by Cambridge University Press:  27 March 2009

A. K. Rai ,
B. S. Mehta  and
M. Singh
A. K. Rai
Affiliation:
Central Sheep and Wool Research Institute, Avikanagar, Rajasthan 304501, India
B. S. Mehta
Affiliation:
Central Sheep and Wool Research Institute, Avikanagar, Rajasthan 304501, India
M. Singh
Affiliation:
Central Sheep and Wool Research Institute, Avikanagar, Rajasthan 304501, India
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Extract

Although sheep combat thermal stress mainly by panting, a sizeable amount (40%) of total evaporative heat loss, is from sources other than panting (Hales & Brown, 1974). The frequency of sporadic discharge of sweat glands increases with increase in ambient temperature and is accompanied by a decline in respiration rate (Bligh, 1961). The wool coat can reduce evaporative cooling but sweating may have cooling value in sheep breeds with open fleeces (Rai, Singh & More, 1978). In sheep, the number and size of the sweat glands (Waites & Voglmayr, 1962) and the quantum of sweat production in a particular time period (Ghoshal et al. 1977) varies in different body regions. In view of the possible significance of surface evaporative cooling, thermal sweating in different body regions of sheep was investigated.

Type
Short Note
Information
The Journal of Agricultural Science , Volume 92 , Issue 2 , April 1979 , pp. 511 - 512
Copyright
Copyright © Cambridge University Press 1979

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References

Bligh, J. (1961). The synchronous discharge of apocrine sweat glands of the Welsh Mountain sheep. Nature, London 189, 582–583.Google Scholar
Chowdhury, D. R. & Sadhu, D. P. (1961). Rate of evaporation from different regions of the skin of Indian Zebu cattle. Nature (London) 189, 491.CrossRefGoogle ScholarPubMed
Ghoshal, A. K., Jaktar, P. R., Purohit, S. K. & Dwarknath, P.K. (1977). A note on some aspects of sweat composition and their effect on canary colouration on Nali sheep. Indian Journal of Animal Science 47, 501–502.Google Scholar
Hales, J. R. S. & Brown, G. D. (1974). Net energitic and thermoregulatory efficiency during panting in the sheep. Comparative Biochemistry and Physiology 49A, 413–422.Google Scholar
Rai, A. K., Singh, M. & More, T. (1978). Cutaneous water loss and respiration rates of various breeds of sheep at high ambient temperatures. Tropical Animal Health and Production (in the Press).Google Scholar
Schleger, A. V. & Turner, H. G. (1965). Sweating rates of cattle in the field and their reaction to diurnal and seasonal changes. Australian Journal of Agricultural Research 16, 92–106.CrossRefGoogle Scholar
Waites, G. M. H. & Voglmayr, J. K. (1962). Apocrine sweat glands of the scrotum of the ram. Nature (London), 196, 965–967.Google Scholar