عناصر مشابهة

• SEASONAL CHANGES IN SOME HORMONES AND BLOOD CHEMISTRY AND ITS RELATION TO REPRODUCTIVE PERFORMANCE IN EGYPTIAN EWES
  بواسطة: SALAH EL DEEN ISMAIL MOHAMED ALI SOLTAN منشور: (2007)
• THE EFFECT OF SOME ENVIROMENTAL FACTORS DURING PREGNANCY OF FRIESIAN COWS ON MILK..
  بواسطة: ISMAIL SAID IBRAHIM KORIET منشور: (1978)
• DETERMINATION OF MILK PROGESTERONE HOLSTEIN FRIESIAN COWS
  بواسطة: AHMED TAREK GAMAL EL DIN ZAKY EL KHOLIFY منشور: (1989)
• SEASONAL VARIATION IN SOME PRODUCTIVE AND REPRODUCTIVE TRAITS IN CATTLE
  بواسطة: MAKRAM KAMEL IBRAHIM EL SAID منشور: (2008)
• THE EFFECT OF NUTRITIONAL LEVEL ON REPRODUCTIVE PERFORMANCE OF FRIESIAN HEIFERS
  بواسطة: MOHAMED ABDEL HAMED MOHAMED SHERIF منشور: (2007)