In New Zealand, dairy cows, no. Probably 80% - 95%. Many, perhaps most, herds will be 100% pasture fed (grass/clover mix, or just grass.) There is often supple

In New Zealand, dairy cows, no. Probably 80% - 95%. Many, perhaps most, herds will be 100% pasture fed (grass/clover mix, or just grass.) There is often supplementary feeding of palm kernel (the solid bits of palm oil seeds left over after the oil is pressed out) maize, and/or lucerne. Beef cows, these days, yes, almost all. It's part of the branding the country's big meat packers are going for (100% grass fed).