Hokitika-based Westland Milk said it was near the end of its pilot study on the feasibility and economics of developing a segregated A2 beta protein milk supply within the company.
Most cows produce the A1 and A2 versions of beta-casein protein, but about 30 per cent of the world's herd produces just the A2 variety.
NZX-listed a2 Milk has long enjoyed first mover status with its A2 beta-casein protein milk, sourced from Canterbury-based Synlait Milk.
"Although still in its final stages of evaluation, the study has already helped us understand what is required in terms of processes to manage the segregation of different milk sources – from on-farm supply to tanker transport, to factory reception and separated processing, to customer shelves," Westland Milk chief executive Toni Brendish said.
Fourteen Westland Milk suppliers participated in the study, with trial runs of separately collected A2 milk, processed into segregated A2 products, carried out in early April.