date:Dec 21, 2012
Fast food giant KFC's Chinese subsidiary has vowed to cooperate with authorities investigating claims by state television that its chicken suppliers had injected banned substances and growth hormones in its poultry.
State television CCTV said that a commercial chicken producer called Liu He Zhi Tuan had been feeding antiviral drugs and growth hormones to its chickens.
The chickens were then supplied to KFC and McDonalds, without any kind of quality checks.
KFC said it would punish its chicke