GMOs in feed
90% of corn and 93% of soybeans grown in the United States in 2013 are genetically engineered, and most of it is destined for animal feed. The adoption of genetically engineered crop varieties has increased the use of herbicides in US agriculture, and has led to the development of "superweeds" that require more toxic herbicides to control. Genetically engineered crops are not required to be independently tested for safety before they can be grown commercially for human food and animal feed.
GMOs in feed: Criteria key
Producers must avoid ingredients derived from genetically engineered crops in feed but the standards do not specifically prohibit them.
Chicken feed must be produced without the use of GMOs but there is no testing requirement to ensure contamination has not occurred.
Ingredients derived from genetically engineered crops are prohibited in chicken feed; either feed must be certified grown without GMO seed or feed must be tested to ensure less than 0.9% contamination.
GMOs in feed: How labels stack up against criteria