Organisers said the latest restrictions in Victoria meant they could not host a Tier 3 event by the start of the Dairy Expo.
They thanked their loyal sponsors and exhibitors for all their support.
“The Dairy Expo site was already to capacity, and we were all looking forward to mingling with like-minded friends,” a spokeswoman said.
“Thanks again to everyone that has supported us this year; stay safe, and we hope to see you all in 2022.”