Abstract
A total of one hundred Barbary Libyan ewes were selected and were divided as Group T and C (n= 50). The ewes in group T were inserted with intravaginal sponges of progesterone for 12 days. At (n= 50). The ewes in group T were inserted with intravaginal sponges of progesterone for 12 days. At the time of r the time of removal of sponges; 500 IU of eCG was injected intramuscularly. The ewes wer . The ewes were mated with fetile rams after twelve hours of removal of vaginal sponges. Significantly higher lambing rate was recorded in treatment group (90 %) of ewes than the control group of ewes (78 %). Likewise the recorded in treatment group (90 %) of ewes than the control group of ewes (78 %). Likewise the twining rate was significantly nificantly higher in the treatment group (44.4 %) than the control group of ewes (20.5). higher in the treatment group (44.4 %) than the control group of ewes (20.5).