Document Type : Original Article
Authors
1 Department of Animal Production, Faculty of Agriculture, Ain Shams University, P.O.Box 68 Hadayek Shoubra, 11241 CAIRO, EGYPT.
2 Department of Arid Land Agriculture, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdul Aziz University P.O.Box 80208 Jeddah 21589 KSA
Abstract
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