That was RAT feces and RAT protein.
And it was cowhide(with hair count), or leather, not Bovine Feces.
Bovine Feces gets washed off at the Slaughter house, with a special wash.
And, since I lived next door to a "Mr. Turkey meat inspector" he showed me the "Book". It was current as of 1998 when he showed me. He has now retired to Florida. But I could prolly get ahold of him for you.
You have to get the Full listings of the 2 inch thick book. I do not believe they publish it on the net. For just such reasons as people would FREAK OUT about the fact there is even a measurment for these things.