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Factors affecting service period, Calving interval and milk yield of Holstein Friesian dairy cows in Upper Egypt

Research Authors
Shehata,S.H.; A.El-Din Zain , M.N.Abdel-Ati
Research Department
Research Journal
3rd Sci., Cong., Egyptian Society for cattle diseases
Research Rank
2
Research Year
1995
Research Pages
pp. 196 - 203