The hormones which may enhance growth are actually proteins. Therefore, if they were consumed in the feed they would be digested in the same way as the corn or soybean meal that they eat. The only way for a growth hormone to be effective would be to inject it everyday in the same manner as Insulin is to treat diabetes. Logically speaking it is physically impossible to inject the 5 billion broilers grown annually in the US each and every day. Chicken growth hormone is produced for use in scientific research, which.
