Haematological and Biochemical Studies on some Species of Fishes

In this study the following biochemical and haematological studies on catfish (clarius gariepianus); mullet (mugi cephalus), tilpia (oreochromis niloticus), mudskipper (gobi i), african sleeper (gobi-ii), were carried out; haemmoglobin electrophoresos, abo blood grouping and glutathine-s-transferase (gst) activity. catfish haemoglobin electrophoretic pattern was similar to human hbaa blood, with haemoglobin (hb) concentration range of 12.0 – 17.8gm%. about 50% of catfish indicated the rh.d- while thew remaining 50% indicated the rh.d+ blood group/. the ‘a’ ‘o’ and ‘ab’ blood groups were detected and glutathione-stransferase activity values of 5.64 – 7.27 i.u were obtained. haemoglobin electrophoresis of mullet gave a pattern similar to hbcc of human blood. hb concentration values were of the range of 5.5 -10.7gm% blood group results gave values of 50% d+ (a,o) and 50% (ab). gst activity values of 13.50-20.10 i.u were obtained. gobi-i and gobi-ii hb electrophoretic pattern was similar to human hbss blood with hb concentration range of 1.8- 5.57gm%. gst activity values of 16.97-33.08 i.u. were obtained. haemoglobin electrophoresis of tilapia produced multiple patterns corresponding to human hbss, hbcc and possibly hbcd. hb concentration values were of the range of 3.70-12.94gm% and gst opf 9.90-12.92 i.u were obtained. only the ‘o’ and ‘ab’ blood groups were identified.