Due to take place in Tatura from January 17 to 21, the organising committee announced they had made the “hard call” to cancel the event on Saturday afternoon.
“For many this news will be expected, but after 30 years it is still a hard call to make,” a post of the event’s Facebook page said.
“Although we sincerely hoped we could run IDW 2021, we find with current restrictions we really have no choice.
“We know it is the right decision and that we need to make some sacrifices to get through the current circumstances.
“We realise this will impact many, particularly the Tatura community.”
Organisers said the uncertainty around the re-opening of borders, and the lockdown in Victoria was too much to continue with the event.
“When we come together in January we are more than a cow show and dairy extravaganza, we are a community.”
The event will return in 2022.