Common carp (Cyprinus carpio L.) were manually fed a diet supplemented with ginger powder (Zingiber officinalis) at levels (0, 6, 8, and 10) % to observe the effect of on blood biochemical parameters. The research was conducted in fish laboratory Faculty Animal Production /College Agriculture Forestry/University Mosul. In this study 84 used distributed over 12 glass tanks an average weight 28 ±...