Document Type : Original Article
Authors
1 Dept. of Microbiology, Fac. Vet. Med., Zagazig Univ., Egypt
2 Dept. of Microbiology, Fac. Vet. Med., Kafrelsheikh Univ., Egypt
3 Dept. of Microbiology, Animal Health Research institute, Dokki.,Giza, Egypt.
Abstract
Keywords
Main Subjects