Volume No. 3 Issue No.: 1 Page No.: 62-67 July-Sept 2008


EFFECT OF HgCl2 ON THE PROTEIN CONTENT OF PRAWN Macrobrachium rosenbergii (de Man)


Jigna Desai and S. K. Tank*

Department of Biosciences, Veer Narmad South Gujarat University,
Surat -395 007 (INDIA)


Received on : March 21, 21008




A wide variety of pollutants physical, biological, chemical and radiological have been identified as detrimental to human health and also to all the living organisms, affecting the ecosystem. The potential problem that may arise due to presence of certain nonnutrient components in practical diets, an additional major concern includes the toxic substance like heavy metals that enter the aquatic environments of fishes. This type of metals might be damaging the aquatic biota. In our study fresh water prawns Macrobrachium rosenbergii, live and healthy were collected from private farm at Nanikakrad, near Navsari in South Gujarat (India). Prawns were acclimatized to laboratory conditions for 24 to 36 hrs prior to experiments. LD50 was decided and after that M. rosenbergii were exposed to different doses of 5, 10 and 15 ppm of HgCl2 for 8, 16 and 24 days durations. The effect of HgCl2 on protein content of muscle tissue was studied. The results clearly indicate that as duration and dose increases, there is a drastic reduction in protein content of prawn muscle tissue. It is inturn an indication of toxic effect of HgCl2.


Keywords : Mercury Chloride, Prawn Macrobrachium rosenbrgii, Protein.