The United States Department of Agriculture's National Organic Program has extended the use of methionine in organic poultry production.

The interim rule takes effect on Oct. 1, 2010, and will remain in place until Oct. 1, 2012. The maximum allowable limits of methionine per ton of feed are: 4 pounds for layers, 5 pounds for broilers and 6 pounds for turkeys and all other poultry. The rule is open for comments until Oct. 25, 2010.