ICBF has released data analysing the fertility performance of cows, incorporating €uro-star ratings.
The data shows that cows carrying five-stars are the most fertile, with 0.88 calves/cow/ year. The average five-star cow had a replacement index of €96, with a calving interval of 391 days. 28% of heifers rating five-star calved between 22-26 months of age.
Five-star cows appeared to be ahead of all the other star-rated cows for average herd replacement index, calving interval, calves/cow/year and the percentage of heifers calved 22-26 months.
The cows rating five-stars had an average herd replacement index of €96, while a one-star cow had an index of €47.
Five-star cows had a calving interval of 400 days, which is better than the average calving interval of a one-star cow at 407 days.
Five-star cows had an average figure of 0.88 calves/cow/year, which is above the national average of 0.85 and that of a one-star cow at 0.85.
The percentage of five-star heifers calved 22-26 months of age reported in at 28% compared to one-star heifers at 16%.
The figures appeared to improve in line with the star ratings of the groups.