عناصر مشابهة

• Studies On Some Fish Diseases Caused By Different Toxic Substances And Organic Wastes =
  بواسطة: Dief, Mohamed Usama Moustafa Hassan منشور: (2000)
• Studies on the main Causes of Fish mortalities in different Fish Farms and aquaria
  بواسطة: Fouda, Moustafa Mohammed Said Moustafa منشور: (2000)
• Some studies on immunological responses of cat-fish to aeromonosis
  بواسطة: Mohamed, Ahmed Fekry Hussien منشور: (1984)
• The effect of various compounds on survival health and performance of some reared fished
  بواسطة: Abd Allateef, Eman Mohamed منشور: (2000)
• Some studies on heavy metal pollutants in fish
  بواسطة: Al Safy, Mohammed Khalil منشور: (1996)