عناصر مشابهة

• Further Studies On AVian Coryza
  بواسطة: El Sayed, Maha Awad Alla منشور: (1997)
• Evaluation of the Different vaccination Programms used for Controlling Fowl Cholera
  بواسطة: Khamis, Nahed Ibrahim Mohamed Mansour منشور: (1993)
• Some studies on bacterial causes of mortalities in ducks at Sharkia governorate
  بواسطة: El Banna, Helmy Ibrahim Ragab منشور: (1997)
• Studies on the Helminth Parastes Infesting aquatic Egyptian and Migrant Birds
  بواسطة: Desoky, Enas Amin Mohamed منشور: (1981)
• Clinicopathological Studiesof Hypervitaminosis D3 in Albino Rats
  بواسطة: Mahmoud, Amira Mohamed منشور: (1994)