B. Hamad
University of El Oued; University of Tiaret
Algeria

Brahim Hamad, Doctor of Veterinary Sciences, Senior Lecturer, Department of Agronomy, Faculty of Life and Natural Science; тLaboratory of Hygiene and Animal Pathology, Institute of Veterinary Sciences, University of Tiaret

P. O. Box 789, El Oued 39000

L. Hadef
University of El Oued; University of Tiaret
Algeria

Leyla Hadef, Doctor of Veterinary Sciences, Senior Lecturer, Department of Agronomy, University of El Oued

Faculty of Life and Natural Sciences, University of El Oued; Laboratory of Hygiene and Animal Pathology, Institute of Veterinary Sciences, University of Tiaret

P. O. Box 789, El Oued 39000

S. Amara
Health and Hygiene Office, Municipality of Taleb Larbi
Algeria

Smail Amara, MSc of Veterinary Sciences, State Veterinarian

El Oued 39030