Hepatic Glutamate dehydrogenase activity and the presence of ammonia and urea in the circulatory fluid of Channa gachua in water-restricted condition
سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 382
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شناسه ملی سند علمی:
JR_IJABBR-2-6_021
تاریخ نمایه سازی: 26 اسفند 1394
چکیده مقاله:
Ammonia is the chief excretory product in fishes. However, non-availability of enough of water in the habitat, may lead to the formation of urea, in fishes. In the present study, the possible role of urea formation to avoid the toxicity of ammonia under water-restricted condition was tested in Channagachua. Circulatory urea and ammonia were estimated in the blood of the fishes and glutamate dehydrogenase activity was measured in the hepatic tissue. From the present study, it is found that blood ammonia in Channa gachua showed a decreasing trend from 1st to 10th day and blood urea showed asteady increase during the experimental period. The correlation study between the blood ammonia and blood urea concentrations in C. gachua establishes the presence of definite relationship between these two parameters. However, hepatic glutamate dehydrogenase activity showed a fluctuating trend. Presence ofhigh circulatory urea in the experimental fish indicates that ureogenesis may get activated, if the fishes face water-limitation
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نویسندگان
Shuvasish Roy Choudhury
Assistant Professor, Department of Zoology, Karimganj College, Assam, India
Rita Mahanta
Associate Professor, Department of Zoology, Cotton College, Guwahati, Assam, India