عناصر مشابهة

• Studies on Paratyphold Infection in Native Breed Fowls
  بواسطة: Abd Algaleil, Khairy Mohamed Aref منشور: (2003)
• Studies on Liver Efficiency and its Relation to Some Equine Diseases
  بواسطة: Mahdy, Jihan Mohamed Saber Abd Alhameed منشور: (2000)
• Some studies on bacteria causing nortalities on rabbits with special reference to E. coli infection
  بواسطة: Aly, Ahmed Bekhet منشور: (1983)
• Efficacy of gumboro disease vaccines used in Egypt
  بواسطة: Abd Alrahman, Abd Alwahed M. منشور: (1993)
• Some studies on mycoplasma infection in ducks
  بواسطة: Lebdah, Mohamed Abd Alaziz Al Sayed منشور: (1984)