"Male and female semen are different weights, so you spin it around and skim them off the top,"Mr Bull said.
"He's the number one ranked ram in Australia, of all breeds, for marbling,"Mr Bull said.
"The higher marble score makes it a little bit richer in flavour and super tender,"Mr Peacock said.
"It harks back to growing up in the UK — those really old-style breeds that just have this incredible richness and full flavour."