Give your new puppy the best start to his working life with Skinner's Field and Trial Puppy food. Field and Trial Puppy food is specifically formulated to meet the nutritional requirements of puppies and young working dogs during their first and most crucial stages of development. By feeding Field and Trial Puppy foods from weaning up to approximately nine months of age, you will ensure that your puppy receives all the proteins, carbohydrates, vitamins, minerals and oils which are essential for steady growth. Field and Trial Puppy foods are wheat and gluten free. They also contain MOS (Mannan Oligosaccharide), a natural digestion enhancer derived from vegetable sources, to help maintain a healthy digestive system.