TY - BOOK AU - Attia,Yasser Mohammed Abdel Hadi TI - Studies on some diseases affecting the gills in some cultured fishes in Egypt PY - 2004/// KW - Fishes KW - Diseases KW - Egypt KW - Gills KW - Effect of water quality on KW - Bacterial gill disease N1 - Thesis (Ph.D.) --Zagazig University, 2004; Includes bibliographical refrences (leaves 156-174) UR - http://nile.enal.sci.eg/thesis/1301.pdf ER -