Increasing efficiency in livestock production and reducing the share of animal products in human consumption are two strategies to curb the adverse environmental impacts of the livestock sector.
A recent article models the impacts and constraints of a third strategy in which livestock feed components that compete with direct human food crop production are reduced. In this scenario, animals are fed only from grassland and by-products from food production.
They show that such a strategy focusing on feed components which do not compete with direct human food consumption offers a viable complement to strategies focusing on increased efficiency in production or reduced shares of animal products in consumption.
Feeding innovation 