Currently in the United States, most organic producers separate livestock and pastures from cropping systems, relying on off-farm purchases of certified organic feed for their animal herds, or fertility for their crop fields. This can increase production costs, especially with the price premium for organic grain, as well as increase greenhouse gases for transportation. Integrating crops and livestock on a multi-function operation could have multiple benefits and the potential to improve the profitability of these kinds of operations.

Researchers at Iowa State University, the University of Minnesota, and Rodale Institute conducted a four-year project, funded by the USDA Organic Research and Extension Initiative, to evaluate the production, environmental, and economic benefits of growing cash crops with forage crops for grazing, including small grains and hay crops for livestock feed.

Learn about Organic Livestock Management Learn About Rotational Grazing

The Benefits of Integrating Crops & Livestock can include:

Reduce animal feed costs

Utilize marginal lands

Reduce labor

Reduce machinery inputs

Improve soil health

Increase farm biodiversity

Additional weed management strategies

Additional source for plant fertility

Reduced pest problems

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PROJECT DESIGN

We compared two crop rotations:

  1. Pasture-winter wheat-soybean-pasture and
  2. Pasture-winter rye/hairy vetch-corn-pasture

and utilized grazing dairy steers on the cover crops as a method of integrating livestock and organic cropping systems.

What We’re Monitoring

Profitability

Health & food components (like conjugated linoleic acids) in the meat

Soil-building through the additions of organic matter

Carbon sequestration through cattle manure deposition

Pest management, including weed prevention

Food safety issues

Results So Far

Consumer preference: Beef from steers grazing winter wheat had higher overall liking compared to beef from steers grazing winter rye. For breeds, crossbreds comprised of Jersey, Normande, and Viking Red has higher overall liking than purebred Holsteins.

Human health: A lower and healthier omega-6/3 ratio was found in the back fat of crossbreds of Jersey, Normande, and Viking Red, as well as crossbreds of Montbéliarde, Holstein, and Viking Red compared to the back fat of purebred Holsteins.

Further Reading & Resources

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