Photo: RNZ / Alexander Robertson
Vet and researcher Winston Mason says many dairy farmers are failing to prevent facial eczema despite taking measures to keep it at bay.
To embed this content on your own webpage, cut and paste the following:
<iframe src="https://www.rnz.co.nz/audio/remote-player?id=2018679744" width="100%" frameborder="0" height="62px"></iframe>
for easy access to all your favourite programmes