MINTREX^® Mn Bis-Chelated Trace Mineral improves the digestibility and absorption of manganese for the distribution to tissues for added value impacts on antioxidant defense mechanisms, protein metabolism, and bone and cartilage formation. Furthermore, improved absorption by the pig reduces the concentration of manganese in swine manure applied to ecosystems that contributes to reduced water quality and harmful effects on aquatic ecosystems from bioaccumulation.