Palm kernel expeller, or PKE, is imported here from Indonesia and Malaysia to be used as supplementary feed on dairy farms.
The use of P-K-E has come under scrutiny in recent years due to its links to deforestation by the palm oil industry - prompting companies like state-owned farming business Pāmu, formerly Landcorp, stopping using it entirely, in 2017.
Monique Steele has the rural news.
