........................................................................................................................ I Statement of Originality ............................................................................................. V Acknowledgement .................................................................................................... VII Table of

..................................................................................................................................... II LIST OF FIGURES ..........................................................................................................................V LIST OF TABLES ............................................................................................................

............................................................................................. I LIST OF PUBLICATIONS .................................................................. III ACKNOWLEDGEMENTS ....................................................................V ABBREVIATIONS...............................................................................VII TABLE OF CONTENTS ...........

................................................................................................................. I ÖZ ................................................................................................................................. II ACKNOWLEDGEMENTS ....................................................................................... III CONTENTS...............................

...................................................................................................................................................................... II DECLARATION ............................................................................................................................................................. IV AKNOWLEDGEMENTS .........................................

Newcastle disease virus (NDV) is a prototype member of avian paramyxovirus serotype 1 (APMV-1), which causes severe and contagious disease in the commercial poultry and wild birds. In this study, we report the results of phylogenetic analyses of recent NDVs isolated from Markazi province of Iran during a recent outbreak in the commercial broiler with respiratory signs and digestive system lesio...

....................................................................................................................I PREFACE.....................................................................................................................III CONTENTS................................................................................................................... V LIST OF PUBLICATIONS........

...................................................................................................................................................................... II DECLARATION ............................................................................................................................................................. IV AKNOWLEDGEMENTS .........................................

............................................................................................................................................................... V ACKNOWLEDGEMENTS.................................................................................................................................... VII