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A note on canary coloration of wool in Ghokla sheep as influenced by restricted frequency of access to water

Published online by Cambridge University Press:  27 March 2009

M. Singh
Affiliation:
Central Sheep and Wool Research Institute, Avikanagar 304501, India
T. More
Affiliation:
Central Sheep and Wool Research Institute, Avikanagar 304501, India

Extract

Yellowing of wool as a function of physiological stress caused by nutritional deficiency in the feed of sheep (Das, 1965) though not confirmed by subsequent studies (Singh et al. 1977) evoked interest in the role of physiological stress in causing canary staining of wool. Restricted water intake as is generally the case with sheep in arid or even semiarid regions during summer, imposes considerable physiological stress. Furthermore, canary coloration is thought to be a sequel to an adaptive mechanism to hot and humid conditions in Indian sheep which have a greater reliance on cutaneous evaporation for dissipating body heat (Acharaya & Singh, 1976). It was, therefore, decided to study the influence, if any, of restricting access to water on the canary coloration of wool (non-scourable yellow coloration of the autumn clip) in the stain-susceptible Chokla sheep

Type
Short Note
Copyright
Copyright © Cambridge University Press 1978

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References

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