Mr Smith said Fonterra was able to collect all the milk from the Tararua district, although there were a number of delays in achieving this.
"I haven't heard of any farmers drying off their total herds, but a number have dried off some of their cows," he said.
"Some farmers have also gone to once-a-day milking, but I think most of these farmers were looking to go once-a-day shortly anyway, the bad weather just brought this forward."
With half the dairy farmers in the upper Manawatu catchment still to go through their One Plan consenting process, the news of the Fish and Game and the Environmental Defence Society's win in the Environment Court has left them facing an uncertain future.
Horizons Regional Council is now halting any further consents while it reviews the judgment and its own processes, including those already in the pipeline.
The Environment Court has directed Horizons to change its implementation process regarding the One Plan.