Each breed has different EPDs. But BW is Birthweight, YW is yearling weight, WW is weaning weight, when it gets to milk and calving ease they can vary by breed. Look up on the net the breed association that you're interested in and look at there sire summary (or similar) and it will be defined what each of that breeds abbreviations mean.
> What do all the different initials
> stand for when looking at EPD's?