نتایج جستجو برای: retained
تعداد نتایج: 41315 فیلتر نتایج به سال:
Journal:
:The Journal of Thoracic and Cardiovascular Surgery
1986
2010
H. M. A. GAAFAR
A. A. SHITTA
H. A. B. GANAH
A total of 1243 records of 585 dairy Friesian cows collected through 8 years (1997-2004) were used to study factors affecting retention of placenta and its influence on reproductive performance and milk production. The obtained results showed that the percentage of retained placenta averaged 24.90%, the highest percentage was in the year 1998 (46.3%) and it increased significantly (P<0.05) with...
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