author(s)
Ferizi Rrahman, Puto Klementina, Bislimi Kemajl, Morina Valon, Maxhuni Qenan

abstract
The objective of this study was to determine some biochemical parameters, analyzed in two different Kosovo rivers. Fish samples were collected during March - July - October 2014 applying the electrofishing method alongside Sitnica and Lumbardhi i Prizrenit rivers. We have analyzed those biochemical parameters on 30 fish individuals on two fish species: Rutilus rutilus and Carassius gibelio. Analyses of these parameters werernconducted according these methods: determination and concentration of TP was analyzed with Biuret method, GLU was analyzed by Glucose Oxidase Enzymatic Method, while AST and ALT was analyzed with Enzymatic-Colorimetric Method, with kit (Roche) and analyzer used by model: Cobas Integra 400-Roche. Based on our results it was observed in Sitnica river were significantly changed (p<0.05) in level of total protein (TP), glucose levels (GLU), hepatic alanine transaminase (ALT) and aspartate transaminase (AST) compared with control group.