Chris and Meryl Rubie from Warwick stud Sovereign Poll Dorsets have taken out the prestigious Fred Bebbington Memorial Trophy for supreme sheep of the show in the Toowoomba Royal Show's stud meat sheep section.
The accolade went to the stud's 10-month-old ewe, also named champion ewe of the show.
Mr Rubie said the ewe was sired by Valley Vista 173/16, the winner of the performance class at the Australasian Dorset Championships.
"Our whole show team is by him," he said.
"We're looking forward to marketing his progeny in the new ram-selling season as we feel all of the progeny have had a significant increase in quality and carcase shape."
Sovereign Poll Dorsets also took out the Morris and Noeleen Byrne Perpetual Trophy for champion short or long wool ewe, the Lorna Milton Memorial Trophy for champion pen, ram and ewe and champion breeder's group of the show.
Meanwhile North South Border Leicester Stud, Walcha, gave Sovereign Poll Dorsets a run for their money, taking out the prizes for champion ram, reserve champion breeder's group and reserve champion ewe.
North South Border Leicester Stud's Michael Makeham said their champion ram weighed 90kg and was growing well.
"He's an August drop ram, so he's only young for his class," he said.
Calvary Christian College was the most successful school of the show, receiving the Samantha McConnell-Green Perpetual Memorial Shield.
North South Border Leicester Stud had the champion ewe and ram for the Border Leicesters, Calvary Christian College had the champion Suffolk ram and ewe and champion Texel ram and ewe were won by Peter Hood, Plainview,
The White Suffok champion ram and ewe were won by Josh Milton, Milton Park and Livingstone Dorper Stud had the champion Dorper ewe.
Stud meat sheep steward Andrew Herron said numbers in the section were slightly up on last year.
"Regardless of the season, the quality across the board is probably better as well," he said.
"It's even harder and more costly in the dry at the moment to prepare a show team so it's great to see."
Section judge Jeff Sutton, from Wattle Farm Border Leicester Stud, Temora, said Sovereign Poll Dorsets' champion ewe had a "beautiful feminine head and length in the shoulders".
Mr Sutton said the champion ram of the show was also outstanding.
"He has a good sirey head, good bone and good balance," he said.
"Overall these sheep would stand up in any Royal Show in the country.
"Even Calvary Christian College had very high quality for a school team."