the number of ewes selected for breeding; prolificacy – the ratio of the number of born lambs to the number of lambed ewes; rearing of lambs – the ratio of reared lambs to the number of live-born lambs; reproductive performance – the ratio
the number of ewes selected for breeding; prolificacy – theratio of the number of born lambs to the number of lambedewes; rearing of lambs – the ratio of reared lambs to the numberof live-born lambs; reproductive performance – the ratio