Issues with Zinc Oxide

It is hardly necessary to reiterate the benefits of using zinc oxide in piglet diets: not only diarrhoea is contained, but also, growth performance is enhanced, and this is possible at a very reasonable cost, with a high degree of repeatability. Thus, zinc oxide (at high doses reaching up to 3000 ppm Zn) is a common ingredient in many piglet diets worldwide, or at least in those countries where it is (still) allowed. But, like many other things, zinc oxide does not come free of problems. Here,