I have also been to China many times over 5 years, and once was taken to what I thought was some kind of supermarket combined with a zoo, was shown some turtles and asked "choose one", they meant as that evening's dinner. I've been offered Shark Lung, snake, monkey, the infamous bat soup and all kinds of things. No I didn't have any of it.
The thing you have to bear in mind with China though is there are 1.4bn people, they are survivors & a properly ancient country, they have no qualms doing whatever it takes to get by and don't flinch at anything. Once you get outside the huge cities the values can be utterly alien to what we would consider 'normal'. Weird and disturbing for me, for them just a case of doing what they have to do.