Document Type : Original Article
Authors
1 Microbiology Dept., Fac. of Vet. Med., Zagazig Univ., Egypt
2 Bacteriol., Mycol.,& Immunol, Dept., Faculty of Veterinary Med., Kafrelsheikh University, Egypt.
3 Central laboratory for quality control on poultry production, Animal Health Research Institute, Dokki, Giza
4 Central laboratory for quality control on poultry production, Animal Health Research Institute, Dokki, Giza.
Abstract
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