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Abstract
The study was carried out on twenty female goats in Sakha farm in Kafr El-Seikh province ; all goats were in the begining of lactation season. Goats weighed from 45 to 60 kg, all goats were kept under the same conditions of management and nutrition, their stock diet was Berseem, concentrate, barely and silage. The food and water were provided adilb.The goats were categorized into 4 selected groups according to their breed.