06.02.2012

The U.S. Department of Agriculture published on Feb. 6 a proposed rule that would continue the allowance of synthetic methionine in organic poultry production but at reduced levels from the current allowable levels.
The current allowance for synthetic methionine expires on Oct. 1 and allows 4 lb.(1.8 kg) per ton of feed for laying chickens, 5 lb. (2.3 kg) per ton of feed for broiler chickens and 6 lb. (2.7 kg) per ton of feed for turkeys and other poultry.
USDA said the proposed rule would permit organic poultry producers to use synthetic methionine after Oct. 1 at the following maximum levels: 2 lb. (0.9 kg) per ton of feed for laying and broiler chickens and 3 lb. (1.4 kg) per ton of feed for turkeys and all other poultry. Methionine is classified as an essential amino acid, and is required for proper cell development and feathering. Poultry animals cannot biologically produce methionine on their own.
The proposed rule reflects the recommendations of the National Organic Standards Board, an independent body of organic industry and stakeholder representatives that advises the secretary of agriculture on aspects of the USDA organic regulations.
USDA said the board determined that the proposed reduced levels of synthetic methionine, developed in consultation with animal welfare experts and nutritionists, are sufficient for poultry maintenance, but do not enhance animal growth. The recommendation is designed to continue to provide for the basic maintenance requirements of organic poultry, satisfy consumer preference to reduce synthetic methionine use and allow the organic poultry industry time to research and develop commercially sufficient sources of allowable natural methionine.

See also: Proposed rule