Researchers Unlock Key to Sustainable Livestock

New research released last week from the University of Cambridge has identified what may be the future of sustainable livestock production: silvopastoral systems which include shrubs and trees with edible leaves or fruits as well as herbage.

Professor Donald Broom, who led the research team, advocates that using a diverse group of edible plants such as that in a silvopastural landscape promotes healthy soil with better water retention (and less runoff), encourages predators of harmful animals, minimizes greenhouse gas emissions, improves job satisfaction for farm workers, reduces injury and stress in animals, improves welfare and encourages biodiversity using native shrubs and trees. Shrubs and trees with edible leaves and shoots, along with pasture plants, produce more food for animals per unit area of land than pasture plants alone, and provides the added benefit of providing shade from hot sun, shelter from rain and a place to hide from perceived danger.

The planting as forage plants of both shrubs and trees whose leaves and small branches can be consumed by farmed animals can transform the prospects of obtaining sustainable animal production, according to Broom. Such planting of 'fodder trees' has already been successful in several countries, including the plant Chamaecytisus palmensis which is now widely used for cattle feed in Australia; and in Colombia where a mixed planting of the shrub Leucaena with a common pasture grass resulted in a 27% increase in dry matter for food and 64% increase of protein production. To read more, click HERE.

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