Tom and Kylie Cochrane swept the pool in the Illawarra dairy section, taking out junior, intermediate and senior champions.

Remarkably, all three cows are sisters.

Stella 3565 took out senior champion, Stella 3713 the intermediate champion and Stella 3863 the junior title.

“It’s a pretty unique and significant achievement,” said proud owner Tom Cochrane.

“As a breeder, to be able to gain three championships at the one time with one family of cows is something special.

“We have won numerous championships at Berry over the years, but this is something we have certainly never achieved before.”

Geoff Cochrane, who started showing Kangawarra cattle in 1970, said he had never heard of such a performance.

“I don’t think we have ever had three sisters in a show team before let alone all of them winning championships,” he said.

“It wasn’t something we set out to do, the cows just each came up at the right time and they happened to be sisters.”

Stella 3863, which was also junior champion at the recent International Dairy Week in Tatura, went on to be crowned supreme junior champion in the interbreed section.

To cap of a successful day the stud also took out champion cow any other breed with a Brown Swiss, Kevindale Zeus Rosina.