عناصر مشابهة

• Some studies on protozoal infections among cultured fish in Sharkia
  بواسطة: El Sayed, El Sayed Abd Elhay منشور: (1993)
• Studies on some Causes of Infertility in Bovines
  بواسطة: Eshra, Nasser Talat Al Sayed منشور: (1998)
• Bacteriological studies of some infertility in bulls
  بواسطة: Ibrahim, Omaima Abd Alaziz منشور: (1993)
• Some studies on the influence of pre and postparturient disorders on the reproductive performance in dairy cows
  بواسطة: El Sayad, Ibrahim El Meaddawey Ali منشور: (2001)
• Some biochemical studies of blood serum in fertile and infertile bovines
  بواسطة: El Enany, Gamal Mahfouze Shahin منشور: (1994)