عناصر مشابهة

• Environmental and Genetic Aspects of Some Productive Traits In Ducks
  بواسطة: El Maghawry, Ahmed Magdy Mohamed منشور: (1983)
• Epidemiological Studies on Pasteurellosis in Ducks
  بواسطة: Ghanem, Ibraheim Abd Alrahman منشور: (1986)
• Study on some viral diseases of ducks
  بواسطة: Shaheen, Abeer Mohamed Mohamed منشور: (1998)
• Experimental Studies On Mycoplasmosis In Ducks
  بواسطة: Abd Alsalam, Ghada Allam Abd Aldaim منشور: (2001)
• Occurrence of food poisoning microorganisms in duck carcases with special reference to salmonella organisms
  بواسطة: Atta Alla, Azza Abd Alghany Mohammed منشور: (2003)