Readigrass is a 100% natural feed, with all the goodness of ryegrass pastures captured in every bag. Readigrass contains: Crude Protein: 15% Crude Fibre: 21% Crude Oil and Fats: 3% Calcium: 0.55% Phosphorus: 0.27% Ca : P Ratio: 2 : 1 Equine Digestible Energy: 10 MJ/kg.