Vitamins and trace minerals: Back to basics

When hog prices are low and feed costs are high, a strict re-evaluation of the essentiality and effectiveness of dietary additives and nutrient concentrations is warranted. Vitamins and trace minerals are a constant addition to any finishing pig diet and as such they deserve the widest examination. Vitamins and trace minerals are naturally found in most feedstuffs in variable amounts. Nutritionists, how-ever, routinely supplement pig diets with these micro-nutrients via premixes in concentrati