عناصر مشابهة

• Factors Affecting Egg Production Patterns in Some Commercial Layer Flocks
  بواسطة: El Tarabany, Mahmoud Mohamed Salah منشور: (2002)
• Pharmacological propereties of Pyrantel tartarate with special reference to its effects in laying hens
  بواسطة: Mohamed, Al Sayed Moustafa Al Sayed منشور: (1988)
• Effect of Breed- Crossing and Feeding Sgstem On the Meat Production of Rabbits
  بواسطة: El Sayed, Hassan Mahmoud منشور: (1988)
• Effect of Some Mendelian Genes on Body Weight and Egg Production in The Fowl
  بواسطة: Shoureap, Usama Mohamed Ali منشور: (1991)
• Detection of heavy metal residues of eggs and egg products
  بواسطة: Ibrahim, Mohamed Al Sayed Abd Alfattah منشور: (2002)