Table 1
Effect of timing and depth of insemination within cervico-uterine tract on pregnancy and lambing rates of Bharat Merino ewes inseminated with frozen-thawed semen

Timing of insemination after onset of estrusDepth of insemination within cervico-uterine tractOverall
Full (uterine)Mid (3rdto last cervical fold)Partial (os to 2ndcervical fold)
nPregnancy rate (%)Lambing rate (%)nPregnancy rate (%)Lambing rate (%)nPregnancy rate (%)Lambing rate (%)nPregnancy rate (%)Lambing rate (%)
14 & 22 h8931.520.22317.417.42817.917.914026.419.3a
10 h7321.911.01216.78.31513.36.71002010b
Overall16227.216.03517.114.34316.314.024023.315.4