عناصر مشابهة

• Respiratory Diseases Arising from Air Pollution Inside Sheep Pens And Methods Of Treatment And Prophylaxis Of These Diseases
  بواسطة: Yousif, Mohamed Ahmed Aly منشور: (1984)
• Some Phsiological Studies on Using Urea In Nutrition of Sheep
  بواسطة: Bassuny, Sabry Mohamed منشور: (1982)
• Some studies on viral respiratory affections in sheep and goats
  بواسطة: Genedy, Ahmed M. M. Sayed Ahmed منشور: (1999)
• STUDIES ON SOME ENVIROMENTAL FACTORS AFFECTING PRODUCTION IN SOME FARM ANIMALS
  بواسطة: يوسف، هيكل محمد محمد منشور: (1985)
• Infectious Diseases of the Upper and Lower Bovine Respiratory Tract
  بواسطة: Al Hendi, Abd Alsalam Bakhsh منشور: (1987)