الفهرس | Only 14 pages are availabe for public view |
Abstract The work was done at the serow Experimental Fish Farm, Dakahlia Governorate, Egypt, which is situated on the southern shore of Lake Manazalah, about 200 km. north east to Cairo that was esta-blished in 1952 for experimental purposes and consists of cem-ent, nurserry and rearing ponds. |