The Labour-led coalition Government had created uncertainty for the dairy industry but Mackle said "they've been pretty engaging over the last year."
"That's been a good thing because there are some big issues, aside from M. bovis, that we are working on together."
Looking back on the year Mackle said he was proud of the dairy industry's initiatives around water, animal care and staff welfare.
Mackel said the Dairy Tomorrow strategy had also been a highlight, involving collaboration with Federated Farmers, DCANZ and the Dairy Women's Network.
Mackle also mentioned other highlights of 2018, including events, research, pasture and farming tools, and said he gave New Zealand agriculture an eight out of ten for the year.