Mountain range furnishes the bulk of summer forage for cornmercial cow-calf operations in north eastern Oregon. Herds maintained on valley range and pasture during winter and spring months are annually trailed to mountain ranges and remain there until calves are ready for fall markets.
Cows and calves make rapid weight gains during the peak of the summer growing period. But what happens to their gains from then until fall weaning measurably affects the annual ranch income. Profits can be increased by an understanding of how cattle respond to this late grazing period.
