23

عناصر مشابهة

• Environmental Factors Affecting Milk Production of Holstein Friesian Cows under Tropical Condition
  بواسطة: El Bushra, Mohamed El Noor منشور: (2009)
• Feeding Cows for Milk Production in Arid Zones and the Dry Seasons in the Sudan
  بواسطة: Hassabo, Ali Ahmed منشور: (2004)
• A Genetic Study on the Lactation Curve in Friesian Cattle
  بواسطة: Abu Bakr, Hanaa Abd Alharith منشور: (1991)
• Characteristicw of Lactation Currve of Friesian Cows in The Jrdan Valley and The Factors Affecting Them
  بواسطة: Al Atiyat, Raed Mahmoud منشور: (1996)
• The Variables, Age At Calving And Herd Have Indirect Effect on Milk Yield
  بواسطة: المقرحى، سالمة عمر منشور: (2005)