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Effects of varying degrees of water restriction on the distribution of body water in high- and low-potassium-type Marwari sheep

Published online by Cambridge University Press:  27 March 2009

G. R. Purohit ,
P. K. Ghosh  and
G. C. Taneja
G. R. Purohit
Affiliation:
Division of Animal Studies, Central Arid Zone Research Institute, Jodhpur, India
P. K. Ghosh
Affiliation:
Division of Animal Studies, Central Arid Zone Research Institute, Jodhpur, India
G. C. Taneja
Affiliation:
Division of Animal Studies, Central Arid Zone Research Institute, Jodhpur, India
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Summary

The distribution of body water in the different body compartments of four highpotassium (HK) and four low-potassium (LK) type sheep of the Marwari breed of the Rajasthan desert was determined after imposing the following watering treatments, viz. watering ad lib., ¼, ½ and ¾ restrictions (each of five days ‘duration with a sevenday normal drinking regime between each treatment) and water deprivation (of three days’ duration). There was no difference in the voluntary water intake of the HK and LK animals. The HK animals normally have a higher blood and plasma volume status than the LK. In both types of animals, the total body water, total blood and plasma volumes and the extracellular, intracellular and interstitial fluid volumes started decreasing as water intake was reduced below 25% of the daily requirement. In both the phonotypes 75% reduction was similar in its effect to complete deprivation. The physiological status of the HK Marwari animals appears to be somewhat superior to that of the LK although both types seem to be equally adapted to the conditions of the habitat.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 80 , Issue 2 , April 1973 , pp. 177 - 180
Copyright
Copyright © Cambridge University Press 1973

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