EFFICIENCY(1)+ OF PRODUCTION OF MILK AND BEEF. Winter Feeding. Efficiency: per cent. Dry matter Energy Protein Fat MILK: Hay and Concentrates 6 gallons daily 24.0 40.9 47.0 11.4 4 " " 19.7 35.1 43.5 9.7 2 " " 12.7 24.6 35.1 6.5 BEEF: Hay, Roots and Concentrates. Fattening period: 9 cwt. to 10.7 cwt. 5.7 16.0 11.9 7.4 " " 10.7cwt. to 12.5 cwt. 5.7 16.3 9.0 7.7 Summer Feeding. MILK: Grazing only. 4 gallons daily 19.3 29.5 25.7 9.5 BEEF: Fattened on Grass. Fattening period: 8.5 cwt. to 10.7 cwt. 5.7 15.