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Studies on blood acid-base status and muscle metabolism in working bullocks

Published online by Cambridge University Press:  02 September 2010

R. C. Upadhyay  and
M. L. Madan
R. C. Upadhyay
Affiliation:
Division of Cattle Nutrition and Physiology, National Dairy Research Institute, Karnal-132001, India
M. L. Madan
Affiliation:
Division of Cattle Nutrition and Physiology, National Dairy Research Institute, Karnal-132001, India
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Abstract

Haryana and crossbred (Holstein × local Haryana) bullocks were subjected to work under heavy loads in summer. During the work, bullocks exhibited distress symptoms. After work, rectal temperature, respiration rate, heart rate and minute volume increased significantly, the average pO2 content increased, muscle lactic acid increased and creatine phosphate level declined. From the results it was evident that oxygen availability in blood improved during work. Despite the enhanced oxygenation of blood, there was accumulation of lactic acid in muscle. This indicated a certain degree of tissue hypoxia, which probably brought about fatigue earlier.

Type
Research Article
Information
Animal Production , Volume 40 , Issue 1 , February 1985 , pp. 11 - 16
Copyright
Copyright © British Society of Animal Science 1985

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