Mineral relative bioavailability misconceptions explained

Mineral relative bioavailability misconceptions explained

Availability, in absolute terms, refers to the amount of a nutrient that is available to the animal for metabolism and incorporation into tissues.

While visiting EuroTier 2016 last November, I had several discussions that involved minerals in animal feeds: the likes of copper, zinc, manganese, phosphorus and calcium. Regardless of the purpose of the discussion or the mineral in question, I often encountered a misconception that I managed to resolve for myself only during my graduate years. It helped that I did some relevant studies with minerals under the late Dr. D.H. Baker at the University of Illinois — the same prominent researcher who co-authored the book “Bioavailability of Nutrients for Animals,” a seminal title, and highly recommended.