Document Type : Original Article
Authors
1 Food Hygiene Dep., Fac. Vet. Med., Benha Univ ,
2 Food Hygiene Dep., Fac. Vet. Med., Benha Univ
3 Microbiology Dep., Fac. Vet. Med., Cairo Univ
4 Directorate of Veterinary Medicine, Giza
Abstract
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