Effect of mercury on the total and electrophoretic profile of proteins and on the activity of three enzymes in mantle of three species of freshwater clam : Unio tigridis, Pseudontopsis euphraticus and Anodonta spp: Abd Ali Taker, Sulaf M. Ahmed. Iraqi J. Vet. Med. 2008;32(1):166-179. doi:10.30539/iraqijvm.v32i1.776