e breeding season of Awassi ewes in south-eastern Anatolia usually lasts from July to November. However, the majority of ewes are bred between July and early September in this zone. The present study was performed at the beginning of the breeding season, in early June. Awassi ewes have a poor reproducti ve performance in Syria 8 and south-eastern Anatolia. Progestagens or progesterone has been used for estrus inducti on during the non-breeding season and transiti on period 5,17 with or without PMSG injection 3,18,19. Similarly, Karagiannidis et al.20 reported that responses to different PMSG doses varied among various breeds. In the present study, during the transiti on period, Awassi ewes were administered different doses of PMSG following a 12-day progesterone treatment. This