Canadian Brand. FirstMate Free Range Lamb & Oats Formula uses Grass Fed Lamb from Australia without added hormones or antibiotics as the single protein and only two wholesome grains. The Grain Friendly category is free of corn, wheat, soy, potato and peas making it optimum for daily feeding or sensitivities. The chicken fat used in FirstMate Pet Foods is processed free of protein, eliminating the risk of allergies derived from chicken.