Why have chicken breasts increased in size so much in the past years? Is it due to hormone use?
Poultry genetics and production practices have improved dramatically in the past years, which have caused poultry breast size to increase. Breeders select their stock based on growth rate and breast size. Also, poultry nutrition and raising practices have improved, so that the poultry can grow faster and larger.
Additional hormones are NOT used in poultry production, as explained in this video featuring a University of Arkansas Poultry Extension specialist: http://www.realtruthaboutchicken.com/
See our Food Safety feature articles for more information on food safety topics.
Answered by Dr. Londa Nwadike, Kansas State University/University of Missouri Extension Food Safety Specialist
Last update: Friday, March 07, 2014