Fig. 8
From: Direct and correlated responses to selection for autumn lambing in sheep
Additive genetic trends in lamb scrotal circumference (SC) in the selection (S) line at 60, 90, and 120 d of age. The EBV are averages for ewes joined in each year. At all measurement ages, additive genetic trends in SC in the environmental control (EC) and genetic control (GC) lines and additive maternal genetic trends in the three lines were negligible and are not shown