Ziwi Peak Grain Free Mackerel And Lamb All Life Stages Air Dried Dog Ziwi Peak Air Dried Recipe 400g 1kg Mackerel & Lamb Ziwi Peak Grain Free Mackerel And Lamb All Life Stages Air Dried Dog Ziwi Peak Grain Free Mackerel And Lamb All Life Stages Air Dried Dog. PEAK NUTRITION FOR ALL LIFE STAGES Gently air dried and handcrafted to lock in natures goodness. With 96% fish, meat, organs and bone to match the dogs biological needs for a diet rich in meat. Whole, wild caught blue mackerela natural powerhouse source of omega 3. Grass fed lamb, ethically raised year round on New Zealands green pastures. Raised without added hormones, antibiotics or growth promotants. No glycerins, grains or high glycemic ingredients such as potato or tapioca starch. 3% NEW ZEALAND GREEN MUSSELS: Natural source of glucosamine and chondroitin for long term joint health and mobility.