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In the current study, 28 Awassi ewes (2-3 aged) years aged were used with their lambs for 12 weeks, to evaluate the effect of ewes body weight (BW) and Litter size (LS) on Body weight BW, Body gain (BG) of lambs, Milk yield (MY) and milk components of ewes. After lambing, ewes were weighted directly. Ewes distributed to 4 groups depending on it's body weight, the groups were: 1 st and 2 nd groups: ewes with high body weight and single lambing (HS), and twin lambing (HT) respectively, 3 rd and 4 th groups: ewes with low body weight and single lambing LS, and twin lambing LT respectively. The results showed a significant increase (p≤0.05) in BW and BG in HS lambs groups compared with LT lambs most weeks of study. MY was higher significantly (p≤0.05) in Heavy ewes group that have twin lambs at most weeks of study, milk fat% recorded a significant increase in milk fat% in Heavy ewes group with single lamb. In conclusion, single lambs born and reared by heavy ewes were became heavier at the end of lactation period (at weaning), also ewes with twin lambs regardless if it was heavy or light will have more milk yield.

THE EFFECT OF BODY WEIGHT AND LITTER SIZE ON SOME PRODUCTIVE PARAMETERSAND MILK COMPONENTS OF SHEEP UNDER SEMI – INTENSIVE BREEDING