Sustainable livestock production

[Smartmarzipan]

Sustainable livestock production is possible
New research advocates use of pastures with shrubs and trees as it is more sustainable, improving animal welfare and increasing biodiversity.
http://www.cam.ac.uk/research/news/sust ... s-possible

Consumers are increasingly demanding higher standards for how their meat is sourced, with animal welfare and the impact on the environment factoring in many purchases. Unfortunately, many widely-used livestock production methods are currently unsustainable. However, new research out today 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.

Current cattle production mostly occurs on cleared pastures with only herbaceous plants, such as grasses, grown as food for the cows. The effects on the local environment include the removal of trees and shrubs as well as the increased use of herbicides, all of which result in a dramatic decrease in biodiversity. Additionally, there is also contamination of soil and waterways by agricultural chemicals as well as carbon costs because of vehicles and artificial fertiliser necessary to maintain the pasture.

The researchers advocate 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.

Additionally, 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. Trees and shrubs have the added benefit of providing shade from hot sun and shelter from rain. It also reduces stress by enabling the animals 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," said Professor 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."

Another success has been 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.

When ruminants, such as cows, goats and sheep, are consuming the plants from a silvopastoral system, researchers have seen an increase in growth and milk production. Milk production in the tropical silvopastoral system mentioned above was 4.13 kg per cow when compared with 3.5 kg per day on pasture-only systems. As the numbers of animals per hectare was much greater, production of good quality milk per hectare was four to five times greater on the silvopastoral system.

One of the additional benefits of using the silvopastoral system is that it increases biodiversity. Biodiversity is declining across the globe, and the main culprit is farming – 33% of the total land surface of the world is used for livestock production.  If farmers were to switch to sustainable livestock production methods, such as the silvopastoral system, the result would be much greater biodiversity with no increase in land use.

Professor Broom added: "It is clear that silvopastoral systems increase biodiversity, improve animal welfare and provide good working conditions while enabling a profitable farming business. The next step is to get farmers to adopt this proven, sustainable model."

It would be nice to see this model widely implemented.

[The Skeletal Atheist]

Interesting to say the least. I'm still hoping for more advancements on lab grown meat, that way the vegans will finally shut up.

[Solitary]

They're waiting to shut up after the beef eaters die of heart attacks and strokes or cancer from the hormones injected into beef and all the bad cholesterol. :shock:  :P      Solitary

[Smartmarzipan]

They're waiting to shut up after the beef eaters die of heart attacks and strokes or cancer from the hormones injected into beef and all the bad cholesterol. :shock:  :P      Solitary

Yeah, vegans never get cancer or have strokes. :roll:

[Sal1981]

Interesting to say the least. I'm still hoping for more advancements on lab grown meat, that way the vegans will finally shut up.

I reckon that's only a in-between from natural to synthetic food.

By synthetic food I mean food that isn't produced by ordinary living cells, but maybe by some biochemical process not yet discovered.