, Mai Masri (3), Abulgassim Abdelhaleem, Nayla Gumaa(1) , Esam Md. AbdulRaheem(2) Zuheir Nur-Eldaiem(3), Maazza Hussein(4), 1 Department of animal resources, Ministry of Agriculture, Red Sea State, Sudan. 2 Department of Histopathology and Cytology, Neelain University, Khartoum, Sudan. 3 Department of Zoology, faculty of Science, University of Khartoum, Sudan. 4 Department of Medical Laboratories, Port Sudan Ahlia College, Port Sudan, Sudan