Palm kernel expeller (PKE) is a biowaste by-product of palm oil processing in Southeast Asia that exported as stock fodder. Global production PKE totals 11M t yr−1, which New Zealand imports 1.9M worth >USD 325M, most supports NZ’s dairy herd 5.5M cows. We aimed to determine the concentrations chemical elements imported into and compare this pasture, well assess against maximum tolerable lev...