I’m of the opinion that if most of the items classified as “by-products” were fresh and unspoiled that they’d be great ingredients in dog’s rations, and I seek out many of these items myself for my dog’s PMR meals.
The problem is how “by-products” are treated at slaughterhouses. They are treated as waste, often kept in hot offal trailers where they spoil and become contaminated and unwholesome and are consequently condemned for human use. But these contaminated and spoiled parts can still be used in dog food if this waste is sent to a rendering facility first, where any remaining nutritional value is degraded by cooking beyond recognition.
It isn’t the ingredients themselves that are a problem, but industry practices that allow for the use of highly contaminated by-products.
Bill
