Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

Supplemental Barley and Charcoal Increase Intake of Sagebrush by Lambs

R. E. Banner, J. Rogosic, E. A. Burritt and F. D. Provenza
Journal of Range Management
Vol. 53, No. 4 (Jul., 2000), pp. 415-420
DOI: 10.2307/4003753
Stable URL: http://www.jstor.org/stable/4003753
Page Count: 6
  • Read Online (Free)
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
Supplemental Barley and Charcoal Increase Intake of Sagebrush by Lambs
Preview not available

Abstract

We evaluated the influence of supplemental barley and activated charcoal on the intake of sagebrush by lambs in individual pens. In 3 experiments, lambs were fed sagebrush (harvested and chopped to 2-3 cm) during the morning; they were fed a basal diet of alfalfa pellets in the afternoon. In the first experiment, lambs supplemented with activated charcoal + barley ate more A. tridentata ssp. vaseyana than lambs supplemented with barley (304 vs. 248 g; P = .071). A second set of experiments, which consisted of 3 trials, determined the effects of activated charcoal, barley, and subspecies of sagebrush on intake of sagebrush. Lambs supplemented with activated charcoal + barley ate more A. tridentata ssp. vaseyana (Trial 1; 292 vs. 225 g; P = .086), and more A. tridentata ssp. tridentata (Trial 2; 371 vs. 255 g; P = .031) than lambs supplemented with barley. In Trial 3, lambs supplemented with barley ate more sagebrush than lambs that were not supplemented (480 vs. 318 g; P = .0002). A third set of experiments compared activated charcoal + barley, barley, and no supplement in 2 trials. In Trial 1, lambs supplemented with activated charcoal + barley or barley generally ate more A. tridentata ssp. vaseyana than lambs not supplemented (P = .017). In Trial 2, lambs supplemented with activated charcoal + barley ate slightly more A. tridentata ssp. vaseyana than lambs supplemented with barley, and they ate substantially more than lambs not supplemented (P = .032). Collectively, the results suggest that energy from supplemental barley increased intake of sagebrush by lambs fed a basal ration of alfalfa pellets which are high in protein, and that activated charcoal played a minor role in further increasing intake of sagebrush. /// Evaluamos la influencia de la suplementación de cebada y carbón activado en el consumo de "Sagebrush" por corderos confinados en corrales individuales. En 3 experimentos, los corderos se alimentaron con "Sagebrush" (cosechado y picado a 2-3 cm) durante la mañana y en la tarde se alimentaron con una dieta basal de pelets de alfalfa. En el primer experimento, los corderos suplementados con cebada + carbón activado comieron mas A. tridentata ssp. vaseyana que los corderos suplementados con cebada (304 vs. 248 g; P = 0.071). En un segundo grupo de experimentos, consistente de 3 ensayos, se determinaron los efectos del carbón activado, cebada y subespecies de "Sagebrush" en el consumo de "Sagebrush." Los corderos suplementados con carbón activado + cebada comieron mas A. tridentata ssp. vaseyana (ensayo 1; 292 vs. 225 g P = 0.086) y más A. tridentata ssp. tridentata (ensayo 2; 371 vs. 255 g; P = 0.031) que los corderos suplementados con cebada. En el experimento 3, los corderos suplementados con cebada comieron mas "Sagebrush" que los corderos sin suplementación (480 vs. 318 g; P = 0.0002). En un tercer grupo de experimentos, conformado de 2 ensayos, se comparo el carbón activado + cebada, cebada y sin suplemento. En el experimento 1, los corderos suplementados con carbón activado + cebada o cebada generalmente comieron más A. tridentata ssp. vaseyana que los corderos sin suplementación (P = 0.017). En el ensayo 2, los corderos suplementados con carbón activado + cebada comieron un poco mas A. tridentata ssp. vaseyana que los corderos suplementados con cebada, y ellos comieron substancialmente mas que los corderos no suplementados (P = 0.032). Los resultados colectivos de este grupo de experimentos sugieren que la energía proveniente de la cebada suplementaria aumenta el consumo de "Sagebrush" de los corderos alimentados con una ración basal de pelets alfalfa los cuales son altos en proteína, y que el carbón activado jugo un papel menor en incrementar el consumo de "Sagebrush."

Page Thumbnails

  • Thumbnail: Page 
415
    415
  • Thumbnail: Page 
416
    416
  • Thumbnail: Page 
417
    417
  • Thumbnail: Page 
418
    418
  • Thumbnail: Page 
419
    419
  • Thumbnail: Page 
420
    420