In Ireland in 2020 the average calving interval was 387 days which is three days less than in 2019. On the top ten percent of the dairy farms in 2020 the calving interval was 364 days. This top ten realized a six week calving rate of 86 percent. For all dairy farms, like in 2019 also in 2020 the six week calving rate was 65 percent. To compare: in 2009 this was 53 percent. Of the heifers, 71 percent got it first calf between 22 and 26 months of age, two percent more than last year. Source: Irish Cattle Breeding Federation (ICBF).