Feeding livestock differently would feed a billion more people

Researchers have identified alternatives edible by animals, not currently used, and which could replace part of animal feed: residues from agricultural production such as straw, leaves, distillers’ grains (residues mainly from the manufacture of ethanol made from wheat or corn), residues of sugar beet, rapeseed, cottonseed; but also co-products such as ground bone meal.

Many of these products are simply left in the fields or wasted“, explains Vilma Sandström. “Although they are not immediately ready to be used to feed animals, it is a lever at our disposal.“.

Especially since the cultivation of plants intended to feed livestock has a considerable impact on the environment and the climate, underlines the study. Livestock for meat production accounts for more than 14% of all greenhouse gas emissions in the world and agriculture uses more than three quarters of the fresh water available on Earth.

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