Our Trout and Salmon Meal Formula combines two of the healthiest fish protein sources in the world. Both fish are high in heart-healthy Omega-3 fatty acids. They are also rich in minerals, namely potassium, phosphorous, and selenium. We bring together two great tasting fish that you dogs will love. Zignature Trout and Salmon Meal Formula Learned from Nature, Crafted to Perfection. Physiologically Tuned, limited ingredient premium food for dogs. Hypoallergenic meat first recipe, with no Corn, Wheat, Soy, Dairy, or Chicken, Chicken Eggs, or Chicken By-Products. Zignature Trout & Salmon Meal Formula for dogs is formulated to meet the nutritional levels established by the AAFCO Dog Food Nutrient Profiles for all life stages, including growth of large size dogs (70 lbs or more as an adult).