عناصر مشابهة

• Some studies on sheep mortality due to bacterial causes
  بواسطة: Osman, Abd Alrady Thabet Ahmed منشور: (1989)
• Secular trends in maternal mortallity in egypt in the last forty years 1940-1979 
  بواسطة: Abd el-aziz, mervat hassan  منشور: (1987)
• STUDIES ON THE PATHOGENIC BACTERIA CAUSING CHICKENS MORTALITIES AT DIFFERENT AGES
  بواسطة: EL SAYED MANSOUR ABDEL HAMID ALI منشور: (2009)
• STUDIES ON DAMAGE CAUSED BY RODENTS ON SOME FIELD CROPS AND ITS CONTROL IN UPPER EGYPT ( ASSIUT AREA )
  بواسطة: HESHAM SAYED KOURANY AHMED منشور: (2006)
• Impact of some dietary supplementation of growth promoters on performance of broiler chickens
  بواسطة: Samar Helal Abdelfatah Ahmed منشور: (2010)