Conventional proven semen. Conventional semen gives a 50/50 probability on heifer and bull calves. Results of the offspring of these sires are known and indicated in the indexes. These are often older animals with a track record.
Conventional genomic semen with a 50/50 probability on heifer and bull calves. These bulls are often younger and have been genomically tested on their genetic performance
Female sorted sexed semen for dairy breeds with a 90/10 probability on heifer calves
Male sorted sexed semen for beef breeds or crossbreeding with dairy breeds with a 90/10 probability on bull calves