Skinner Field and Trial Duck and Rice  Skinner’s Field & Trial Duck and Rice is a complete working dog food. This dry food is specially developed and formulated to support active dogs who are regularly working at a moderate activity intensity. Skinner’s Field & Trial Duck and Rice has been carefully developed to include a protein level of 25% and a fat level of 11% to support the energetic requirements of a range of active dogs, such as working gundogs, agility dogs and active pet dogs. With protein being provided from digestible duck meal, to support muscle integrity and development, and fat to support moderate performance output, Skinner’s Field & Trial Duck and Rice is an ideal choice for a range of dogs. These factors, along with rice supplying digestible carbohydrate as an energy source, means that Skinner’s Field & Trial Duck and Rice constitutes a diet to support the day-to-day requirements of active dogs. Has the recipe changed? We have added benefits for joint, heart and digestive health. The protein level has increased slightly, as we have increased the meat meal.