Average annual culling rate was slightly higher than the rate estimated by other studies, 24% and 25%, respectively (Esslemont and Kossaibati, 1997; Whitaker et al., 2000; Bell et al., 2010). However, the mean herd size of the studied
Average annual culling rate was slightly higher than therate estimated by other studies, 24% and 25%, respectively(Esslemont and Kossaibati, 1997; Whitaker et al., 2000; Bellet al., 2010). However, the mean herd size of the studied