There is no conceptual divide between 'meat' and 'inedible rubbery bits' when butchering an animal carcass

 The Chinese don't generally divide the animal world into the separate realms of pets and edible creatures: unless you are a strict Buddhist (and bearing in mind certain regional preferences), you might as well eat them all. Likewise, there is no conceptual divide between 'meat' and 'inedible rubbery bits' when butchering an animal carcass: in China they traditionally favour the kind of nose-to-tail eating of which restaurateur Fergus Henderson, the notorious English purveyor of offal, could only dream. 

F. Dunlop, Shark's fin soup and Sichuan pepper (2008), 12