Hi-Tek Rations adds Alaskan Fish Formula to the company's Hi-Tek Naturals Grain Free premium dog food line. The formula contains salmon meal, herring meal and ocean whitefish meal as well as eggs, sweet potatoes, potatoes, peas, tomatoes, blueberries and raspberries. No corn, wheat, soy or rice is used, the company reports. The food offers a rich source of proteins, fats, vitamins and minerals to help maintain a healthy skin and coat, vibrant muscles, strong bones and a robust immune system, according to the company. The formula is available in 5-, 15- and 30-lb. bags.