Studies of grazing management for cow-calf operations on native range have been conducted on the Texas Experimental Ranch since 1960. Three stocking rates and three grazing systems were evaluated. Calf production was greater from the deferred-rotation grazing systems than from continuous grazing at the same stocking rate. Heavier stocking rates reduced calf production per animal unit slightly, but production per acre increased significantly. The net returns per animal unit were greatest from the Merrill system, stocked at a moderate rate, and the net returns per acre were greatest from heavy continuous stocking. The optimum stocking rate for this range appeared to be between 40 and 50 animal units per section and it was profitable to use the Merrill grazing system./Se llevó a cabo un estudio en el rancho experimental de Texas cerca de Throckmorton, Texas, E.U.A., comprendiendo un período de diez años. Los tratamientos fueron: pastoreo todo el año a tres diferentes cargas de animales: pesado (12.8 acres por vaca), moderado (20.8 acres por vaca), ligero (28.4 acres por vaca) y dos diferentes sistemas de pastoreo con rotación a la carga moderada. La producción de becerras por vaca fué mas alta para los sistemas de pastoreo con rotación que para el pastoreo por todo el año a la misma carga moderada. La producción por vaca fué menor en el tratamiento de pastoreo todo el año a la carga pesada pero la producción por acre fué mayor que en todos los otros tratamientos. También el ingreso neto por acre. El ingreso neto por vaca fué mayor en el cuarto potrero rotación llamado Sistema de Merrill. El coeficiente de agostadero óptimo fué entre 12.5 y 15 acres por unidad animal. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020
Scholarly peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol. 1, 1948 up to 5 years from the current year. Formerly Journal of Range Management (JRM). More recent content is available by subscription from SRM.