Acknowledgements
Authors would like to express their sincere gratitude to Dr.
Alaa Eldin Eissa, associate professor of Fish Diseases, Department
of Poultry & Fish Diseases, Faculty of Veterinary Medicine
at Tripoli University for his profound assistance during
the bacteriological part as well as language proofreading of
the manuscript. We also appreciate the efforts made by Drs
Moustafa M. Houda and Abdullatif M. Karmous from
Department of Animal Production, Faculty of Agriculture at
Tripoli University for their valuable logistic support and scientific
advices throughout this work