The most recent results of the sexed semen trial carried out on Irish herds were discussed at the Moorepark Open Day yesterday (Wednesday).

The results show normal unsexed semen with a conception rate of 46% in cows compared to sexed frozen semen with a conception rate of 39% – a difference of 7%. The results for ‘fresh’ sexed semen were worse with a conception rate of 37% for cows and 46% for heifers.