MYCOPLASMA AS A CAUSATIVE PATHOGENIC AGENT IN CLARIAS LAZERA IN EGYPT

Document Type : Original Article

Authors

Animal Health research Institute, dokki, Giza, Mycoplasma Department, Fish diseases Department, Bacteriology Department.

Abstract

A total of (16) cat fish, fresh water fish Clarias lazera caught from Giza Governorate, Egypt, were bacteriologically examined. Mycoplasma could be isolated from gills, branchial organs, liver, heart, spleen and gall bladder. The isolates belonged to genus Mycoplasma, they were glucose fermenters, exhibited phosphatase activity, hydrolyzed tetrazolium, produced film and spot. Moreover, the isolates hemolyzed and agglutinated RBCs, adhered to glass and plastic surfaces and aggregated in broth medium. When tested by growth inhibition test against some Mycoplasma available antisera, the Mycoplasma isolates are suggested to be species specific to fish. 

Main Subjects