We then analysed the potential of replacing food-competing feedstuff—here cereals, whole fish, vegetable oils and pulses that account for 15% of total feed use—with food system by-products and residues.
a distinct minority of animal feed competes with human food
Yes, humans cannot eat grass (for example), but grass is also not a byproduct. And fields used to grow grass could be used either for other (human-edible) crops, habitation or for wildlife restoration.
from the abstract
a distinct minority of animal feed competes with human food
Yes, humans cannot eat grass (for example), but grass is also not a byproduct. And fields used to grow grass could be used either for other (human-edible) crops, habitation or for wildlife restoration.
some. I doubt that’s true for most grasslands.