Skinner's Field and Trial Puppy is specifically formulated to meet the nutritional requirements of puppies and young working dogs during their first and most crucial stages of development. Field & Trial Puppy is wheat-gluten free. It also contains MOS (Mannan Oligosaccharide), a natural digestion enhancer derived from vegetable sources, to help maintain a healthy digestive system. Field and Trial Puppy is suitable from weaning up to approximately nine months of age. The feed will ensure that your puppy receives all the proteins, carbohydrates, vitamins, minerals and oils essential for steady growth.