IMPACT OF MERCURY CHLORIDE EXPOSURE ON SOME OF IMMUNOLOGICAL AND BIOCHEMICAL ASSAYS OF COMMON CARP, CYPRINUS CARPIO

This work was designed to evaluate the influence of mercury chloride on some biochemical and immunological biomarkers in common cap, Cyprinus carpio. Around 120 fish were randomly allocated into four groups (30 per group) triplicates as follows; first group act control provided with water only without adding HgCl2; G1, G2 G3 exposed waterborne HgCl2 at levels 0.01, 0.05 0.1 mg l-1 respectively. After one month exposure HgCl2, there significantly decreased (P<0.05) lymphocyte transformation index phagocytic lysozyme activities. Besides, biochemically, Albumin globulin content exhibited declined particularly higher dose HgCl2. In contrast, blood glucose value urea showed increased especially G3. On other hand, variable changes observed total count leucocytes included lymphopenia neutrophilia G1 compared control. conclusion, this investigation indicated that has immune suppressive effects is extremely toxic carp.