To describe proportion and pattern of culling in commercial dairy herds of Khorasan Razavi province, this survey was carried out from 21st March 2008 to 20th March 2009 in 15 industrialized dairy herds. For each culled cow ...

Neonatal calf diarrhea is one of the most important diseases and causes of economic loss in dairy herds. The objective of this study was to identify risk factors associated with the incidence of calf diarrhea in large dairy ...

The objectives of this study were to determine frequency of stillbirth

and twin birth, and the individual and environmental factors affecting

them in commercial dairy herds located in northeast of Iran. Parity ...

Objective of the study: Neonatal calf diarrhea is the most frequent disease in Iranian dairy herds. The aim of this study was to evaluate the effects of neonatal calf diarrhea on subsequent productive and reproductive ...

مقدمه: کیست هیداتید بیماری انگلی است که کرم بالغ آن به نام Echinococcus granulosus در روده گوشت خوران به ویژه سگ زندگی می کند و خوردن تخم آن توسط انسان و علف خواران باعث ایجاد کیست در بافت های بدن می گردد. با توجه به اهمیت ...