Document Type : Original Article
Authors
1 Dept. of Hygiene and Animal Husbandry, Fac. of Vet. Med. – Zagazig University, Egypt.
2 Dept. of Hygiene and Animal Husbandry, Fac. of Vet. Med. – Zagazig University, Egypt
3 Dept. of Hygiene and Preventive Medicine, Fac. of Vet. Med., Tanta University, Egypt
4 Dept. of Hygiene, Zoonoses and Animal Behaviour, Fac. of Vet. Med., Suez Canal Univ., Egypt
Abstract
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