Document Type : Original Article
Authors
1 Department of Animal hygiene, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt.
2 Department of fish diseases, Faculty of Veterinary Medicine, New Valley University, Alkharga, New Valley, Egypt.
3 Department of Agricultural economics, Faculty of Agriculture Assiut University, Assiut, Egypt.
4 Department of Biochemistry and toxicology, Animal Health Research Institute, Dokki, Giza, Egypt.
Abstract
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