Contribución ecológica de los taninos de especies leñosas sobre la utilización de nitrógeno por bovinos
Por: Flores Ruano, O.I
| Ibrahim, M | Kass, D | Andrade, H | CATIE, Turrialba (Costa Rica). Programa de Investigación | 4. Semana Científica Turrialba (Costa Rica) 6-9 Abr 1999.
Series Serie Técnica. Reuniones Técnicas (CATIE).Editor: Turrialba, Costa Rica 1999Descripción: p. 255-258.ISBN: 9977573190.Tema(s): PLANTAS LEÑOSAS | PLANTAS CURTIENTES | CALLIANDRA CALOTHYRSUS | GANADO BOVINO | GLIRICIDIA SEPIUM | DIGESTIBILIDAD IN VITRO | TANINOS | LEGUMINOSAS FORRAJERAS | DESMODIUM OVALIFOLIUM | CONTENIDO DE MATERIA SECA | CONTENIDO DE NITROGENO | TURRIALBA | COSTA RICA | WOODY PLANTS | TAN PLANTS | CALLIANDRA CALOTHYRSUS | CATTLE | GLIRICIDIA SEPIUM | IN VITRO DIGESTIBILITY | TANNINS | FEED LEGUMES | DESMODIUM OVALIFOLIUM | DRY MATTER CONTENT | NITROGEN CONTENT | COSTA RICARecursos en línea: Haga clic para acceso en línea
En:
En: CATIE, Turrialba (Costa Rica). Programa de Investigación Logros de la investigación para el nuevo milenio. ActasResumen: This study was conducted on CATIE's experimental farm in Turrialba, Costa Rica to determine the effect of feeding forages of contrasting tannin concentrations on N utilisation by young bulls. The treatments were different supplements of C. calothyrsus and Gliricidia sepium (0: 100, 33: 67, 67: 33 and 100: 0), where increasing levels of C. calothyrsus simulated increasing tannin levels. C. calothyrsus had lower in vitro DM digestibility (30.2 vs 62.1 percent) and higher condensed tannins (18.5 vs 1.8 g kg DM exponente -1) than C. sepium. As the level of C. calothyrsus increased, N intake decreased, faecal N increased, urinary N, N retained and N absorbed decreased whereas the efficiency of use of absorbed N increased. The use of a mixture of forages with contrasting tannin concentrations contributed to increased efficiency of absorbed N and modified pathways of N excretion in ruminants.
| Tipo de ítem | Ubicación actual | Colección | Signatura | Estado | Fecha de vencimiento | Código de barras |
|---|---|---|---|---|---|---|
Analítica
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Biblioteca Conmemorativa Orton | Colección CATIE | CATIE ST RT-5 (Navegar estantería) | Disponible | BCO22118673 | |
Documento digital
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Biblioteca Conmemorativa Orton | Colección CATIE | CATIE ST RT-5 (Navegar estantería) | Disponible | BCO21021071 |
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2 tab. 1 fig. 9 ref. Sum. (En)
This study was conducted on CATIE's experimental farm in Turrialba, Costa Rica to determine the effect of feeding forages of contrasting tannin concentrations on N utilisation by young bulls. The treatments were different supplements of C. calothyrsus and Gliricidia sepium (0: 100, 33: 67, 67: 33 and 100: 0), where increasing levels of C. calothyrsus simulated increasing tannin levels. C. calothyrsus had lower in vitro DM digestibility (30.2 vs 62.1 percent) and higher condensed tannins (18.5 vs 1.8 g kg DM exponente -1) than C. sepium. As the level of C. calothyrsus increased, N intake decreased, faecal N increased, urinary N, N retained and N absorbed decreased whereas the efficiency of use of absorbed N increased. The use of a mixture of forages with contrasting tannin concentrations contributed to increased efficiency of absorbed N and modified pathways of N excretion in ruminants.
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