During the suckling period, the milk yield was estimated at 70 kg and 55-57 kg for the twin and singlesuckling ewes respectively. However, during the milking period, the milk yield was the same for the differents groups (A: 53 kg and B: 54 kg). There is a positive correlation between the milk suckled and the growth of lambs for all the suckling period (42 d). This correlation is stronger during the first 28 d of suckling ( A, r = 0.83 and B, r = 0.74). The feed efficiency is 5.8 and 7.0-7.3 for twin and single lambs respectively, ie 6.5 on average. milk yied /growth / lamb / Hamra ewe

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