Subtropical Dairy Operations TeaM


Brad Granzin

Executive Officer

Regional Manager
Dairy Australia
Regional Development Program

PO Box 4126,
Goonellabah NSW 2480

M | 0431 197 479

Specialising in subtropical environments, Brad has established his scientific career in applied dairy herd nutrition, and the development and extension of whole dairy farm systems. He has broadened his expertise in dairy supply management both pre and post farm gate and is experienced in senior business, organisation and project management.

Appointed to his role in 2014, Brad is enthusiastic about the northern dairy industry and driving Subtropical Dairy to become a quality provider of services and information to the industry.

Belinda Haddow

Belinda Haddow

Regional Extension Officer
South East Queensland

M | 0423 003 638

Belinda has been working in the dairy industry in Queensland since 1995, following her studies in Agricultural Science at the University of Queensland. She worked for 10 years in a farm liaison-extension role with the Dept Primary Industries and Dairy Farmers. During that time she lived in Toowoomba and spent most of her time working with farmers on the Darling Downs and the South Burnett.

In her more recent roles, Belinda has worked with farmers in the Young Dairy Network and on industry projects and natural disaster response teams. Over the years Belinda has enjoyed working with dairy farmers and in their businesses and has built good working relationships with farmers and some great friendships. Belinda and her husband, Mark, have 3 children and live in Highfields near Toowoomba.


Fiona Neville

Regional Extension Officer
Far North Queensland

M | 0427 033 709

Fiona Neville is Subtropical Dairy’s Regional Extension Officer for Far North Queensland starting in August 2022.

Fiona recently worked for Syngenta Crop Protection as a Territory Sales Manager servicing South-east Queensland, Far North Queensland and northern NSW for the past 8 years. Prior to this, Fiona was a Project Manager in Syngenta Research and Development.


Heidi Barnier

Regional Extension Officer
Northern NSW

M | 0477 143 128

Heidi Barnier is Subtropical Dairy’s Regional Extension Officer for Northern NSW starting in February 2023.

Heidi is based in Goonellabah in Far North NSW. She completed her Bachelor of Rural Science (Honours) at the University of New England, Armidale in 2017. After graduating, Heidi worked as an agronomist with Nutrien Ag Solutions in Gunnedah and Casino. Recently, Heidi was the Regional Business Manager for Valley Seeds for NSW.