Engage Duck & Rice Our Duck & Rice recipe is formulated to give your dogs the very best for sustained health and vitality. The high quality duck recipe, with hypoallergenic characteristics, provides a highly digestible source of nutrition. The high rice inclusion level offers slow release energy to keep your dogs calm, yet alert, throughout the working day. This fast recovery formula has additional glucosamine and chondroitin to aid joint care, and the high oil content can help keep coats strong, while providing sustained energy.