I live in the Midwest. I am used to driving behind trunks carrying pigs, or cows, an occasional horse trailer, or even a turkey truck, feathers flying out the slatted sides. But the other day I followed something new. It was a large, bright red semi pulling a large flatbed with an enormous chrome tanker on top. It reminded me of the large white milk tankers I see occasionally. The chrome was polished to a high shine that any new Cadillac would have envied.
As I pulled out onto to the interstate behind this tanker, I noticed that it had large black block lettering on the back:
INEDIBLE
NOT MEANT FOR HUMAN CONSUMPTION
PORK PLASMA
Pork plasma? I was following a huge tanker of pork plasma?
I was at once revolted and intrigued. Obviously it had come from a pork processing plant. But where was it going? What would anyone want with that much pork blood? What could you do with it? Were they afraid someone would try to consume what was inside? The truck pulled off on a cross highway, leaving me to my musing.
When I got home, I did some research. Of course someone has found a use for leftover pork blood. In fact, there is an entire industry built on it. I learned that there are companies that manufacture "spray-dried plasma proteins" to use as performance enhancers in animal diets. These companies make nutritional health supplements "from these functional proteins" for cattle, sheep, poultry, and swine. (Isn't that how mad cow disease started?)
It gives a new meaning to the expression, "blood on the highway."
