The Royal Society for the Prevention of Cruelty to Animals is asking supermarkets to story carrying faster growing breeds of chicken used in "standard" and "standard plus" labels.
"... we are asking all UK supermarkets to take the next vital step and commit to only using a genetically slower growing breed for all chicken, in line with the requirement that already exists under the Freedom Food scheme," said Marc Cooper, RSPCA.
The RSPCA sites health problems with the chickens as its basis for asking supermarkets to change their offerings.
