I only have a HS education so I don't know what the heck you are talking about.....
My profession is a beef cattle nutritionist. We use cattle with windows that can be opened into the rumen (a fermentation vat which can uniquely digest fibrous materials like hay) to collect rumen fluid which contains bacteria.
I apologize for coming across too technical. Bottom line line, our work involves making cattle more healthy and efficient. Our end goal is to make the best eating beef in the world.