Chinese Fake Meat
As you have probably already surmised, China's food standards haven't always been up to par. China experienced its own meat crisis, however it was a little more vivid than the problems with veal being substituted for pork and horses for beef.
In one instance, duck meat that was manufactured using glue and chemicals with the addition of imported mutton grease for authenticity was sold as mutton in China. This was a follow-up to a prior con where duck flesh was dipped in lamb urine to give it a mutton flavor, supposedly a common occurrence.
Even though duck covered in mutton grease doesn't sound particularly appealing, it is at least generally acknowledged as being food. Fox, mink, and rat meat was being sold as mutton elsewhere.