Effect of Hypoxia and Energy Conservation Strategies in the Air-Breathing Indian Catfish, Clarias batrachus

被引：0
|
作者：
A. Kumar
A. Gopesh
机构：
[1] SHS Goverment Degree College,Department of Zoology
[2] University of Allahabad,undefined
来源：
National Academy Science Letters | 2015年 / 38卷
关键词：
Catfish; Hypoxia; Surfacing behaviour; LDH; MDH;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Fish in a tropical country like India are frequently exposed to different duration of hypoxia. The effect of hypoxia on the physiology of fish, air-breathing catfish Clarias batrachus were exposed to different duration of hypoxia and its effect on activities of lactate dehydrogenase (LDH) and malate dehydrogenase (MDH) were studied in four tissues (heart, liver, brain and muscle). The specific activity of LDH increases in all tissues, which reflects towards onset of anaerobic respiration and decrease in energy demand in all these tissues. In contrast, MDH specific activities were decreased significantly in heart, suggesting involvement of strong aerobic respiration in heart during hypoxia. The present investigation revealed that during hypoxia enzyme activities responded in a tissue-specific manner in the fish C. batrachus reflecting the balance of energetic demands, metabolic role and oxygen supply of particular tissues.
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页码：135 / 137
页数：2
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