Reproductive performance of Korean native cattle (Hanwoo) focusing on calving interval and parity

Genetic relationship of age at first calving with conformation traits and calving interval in Hanwoo cows

“…3 shows the distribution of CIs, ranging from 300 to 620 days, with the mean and standard deviation of 399.0 and 101.1 days ( Table 2 ). Cho et al [ 27 ] have reported similar values for the mean of CIs, while Eum et al [ 8 ] and Lopez et al [ 9 ] have reported much lower values of 360.8 and 363.1 days in Hanwoo.…”