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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

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