Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep
With the purpose of determining under field conditions the quantity of rainfall that moves vertically to several depths in the Altillanura, a soil Tipyc Haplustox isohipertérmico caolinítico of the municipality of Port López (Meta) was selected, worked during several years (2,4 and 6 traîl passes pe...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | Español |
| Published: |
2001
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/44378 |
| _version_ | 1855538348171460608 |
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| author | Carulla, Juan E. Lascano Aguilar, Carlos Eduardo Klopfenstein, T |
| author_browse | Carulla, Juan E. Klopfenstein, T Lascano Aguilar, Carlos Eduardo |
| author_facet | Carulla, Juan E. Lascano Aguilar, Carlos Eduardo Klopfenstein, T |
| author_sort | Carulla, Juan E. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | With the purpose of determining under field conditions the quantity of rainfall that moves vertically to several depths in the Altillanura, a soil Tipyc Haplustox isohipertérmico caolinítico of the municipality of Port López (Meta) was selected, worked during several years (2,4 and 6 traîl passes per year for a total accumulated to the moment of the tests of 8, 16 and 32 passes) and different handling conditions (native Savanna; Rice (with 8 and 16 trail passes) and I Pasture (B. Dictyoneura with 16 and 32 trail passes)). it was evaluated in situ the quantity of rain that passes through different depths of the soil using funnel microlisimetros installed to the following depths: 3cm, 5 an, 10 cm, 15 cm, 20 cm and 30 cm. To each depth the volume of water was measured that it went by each soil sheet and the soluble components were determined (NOv Ca, K, P), pH and electric conductivity. Additionally the quantity of rain weekly fall was determined in the work area, to establish the existent relationship between the precipitation and the quantity of water that it went by each depth. There was high variability in the form which water moves inside the soil, in which is affected by the preferential flow. The quantity of soluble components that move from a layer to another being function of the quantity of water that passes. For the soils of the Altillanura it was found that the grasses allow a better distribution of water and nutritious since they create and they maintain macroporos improving the physical state of the soil. |
| format | Journal Article |
| id | CGSpace44378 |
| institution | CGIAR Consortium |
| language | Español |
| publishDate | 2001 |
| publishDateRange | 2001 |
| publishDateSort | 2001 |
| record_format | dspace |
| spelling | CGSpace443782025-05-15T09:40:30Z Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep Carulla, Juan E. Lascano Aguilar, Carlos Eduardo Klopfenstein, T animal feeding feed crops desmodium ovalifolium tannins sheep nutrient intake digestibility digestive absorption nitrogen retention taninos ovinos ingestión de nutrientes digestibilidad absorción digestiva retención nitrogenada With the purpose of determining under field conditions the quantity of rainfall that moves vertically to several depths in the Altillanura, a soil Tipyc Haplustox isohipertérmico caolinítico of the municipality of Port López (Meta) was selected, worked during several years (2,4 and 6 traîl passes per year for a total accumulated to the moment of the tests of 8, 16 and 32 passes) and different handling conditions (native Savanna; Rice (with 8 and 16 trail passes) and I Pasture (B. Dictyoneura with 16 and 32 trail passes)). it was evaluated in situ the quantity of rain that passes through different depths of the soil using funnel microlisimetros installed to the following depths: 3cm, 5 an, 10 cm, 15 cm, 20 cm and 30 cm. To each depth the volume of water was measured that it went by each soil sheet and the soluble components were determined (NOv Ca, K, P), pH and electric conductivity. Additionally the quantity of rain weekly fall was determined in the work area, to establish the existent relationship between the precipitation and the quantity of water that it went by each depth. There was high variability in the form which water moves inside the soil, in which is affected by the preferential flow. The quantity of soluble components that move from a layer to another being function of the quantity of water that passes. For the soils of the Altillanura it was found that the grasses allow a better distribution of water and nutritious since they create and they maintain macroporos improving the physical state of the soil. Se realizaron tres experimentos para determinar el efecto de la reducción de concentración de taninos con densados en Dsemodium ovalifolium Wallick ex Gagnep (CIAT 350) sobre el consumo voluntario, digestión, absorción y balance de N en ovinos. Se utilizó polietileno glicol (PEG) como agente de enlace para reducir los taninos condensados ex tractables (TCE). En el Expto. 1, se aleatorizaron 12 ovinos en crecimiento en cuatro tratamienos: alimentación ad libitum con Centrosema macrocarpum Bentham (CIAT 5713), C. macrocarpum + PEG (50 g kg-1 MS), D. Ovalifolium o D. ovalifo lium + PEG (50 g kg-1 de MS. La cantidad de TCE fue de 46 y 17 g kg-1 para D. ovalifolium y D. ovalifolium + PEG, respecti vamente; la de C. macrocarpum fue de 1.7 g kg-1 y no se cambió al adicionar el PEG. El consumo voluntario en MS no fue diferente (P > 0.05) entre los tratamientos con C. macrocarpum, pero fue mayor (P < 0.10) para el tratamiento con D. ovalifo lium + PEG que con el de D. ovalifolium (23 vs. 19 g kg-1 peso vivo d-1). Al alimentar los ovinos con D. ovalifolium alto en TCE, la excreción de N fecal fue mayor (4.4 vs 2.8 g d-1), lo cual resultó en menor (P < 0.10) retención de N (1.3 vs. 4.3 g d-1) que con la adición de PEG. En el Expto. 2, se usaron tres ovinos con fístulas ruminales y duodenales en un diseño de cuadra do latino 3 x 3. Los tratamientos fueron: alimentación restringida con D. ovalifolium (Control, 41 g kg-1 TCE), D. ovalifo lium + 3.5% - PEG (17 g kg-1 TCE) o D. ovalifolium + 7.0% - PEG (16 g kg-1 TCE). La concentración media de NH 3 N ru minal (mg dL-1) fue de 5.2, 12.2 y 12.7 para el Control, 3.5 - PEG y 7.0 - PEG, respectivamente. El N fecal fue menor (P < 0.05) para las dietas bajas en TCE, pero la absorción de N aumentó (P < 0.10) al aumentar el nivel diético de TCE. En el Expto. 3 se utilizaron tres ovinos fistulados de rumen, duodeno e íleo, en un diseño de 2 filas x 3 columnas. Los tratamientos fueron: alimentación restringida con D. ovalifolium (Control, 46 g kg-1 TCE) o D. ovalifolium + 5.0% de PEG (18 g kg-1 TCE). El flujo de N al duodeno fue mayor (P < 0.01) en los ovinos alimentados con niveles altos que en aquellos que recibie ron niveles bajos de TCE (8.3 vs. 5.9 g d-1). La absorción de N en el intestino delgado fue también mayor (P < 0.05) con die tas altas en TCE (3.0 vs 3.8 g d-1). Los altos niveles de TCE en esta leguminosa tropical redujeron el consumo voluntario y la degradación de proteína en el rumen (menos amoníaco ruminal), pero en asociación con alimentación restringida se incre mentó el flujo y la absorción de N en el intestino delgado.. 2001 2014-10-02T08:33:40Z 2014-10-02T08:33:40Z Journal Article https://hdl.handle.net/10568/44378 es Open Access |
| spellingShingle | animal feeding feed crops desmodium ovalifolium tannins sheep nutrient intake digestibility digestive absorption nitrogen retention taninos ovinos ingestión de nutrientes digestibilidad absorción digestiva retención nitrogenada Carulla, Juan E. Lascano Aguilar, Carlos Eduardo Klopfenstein, T Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep |
| title | Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep |
| title_full | Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep |
| title_fullStr | Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep |
| title_full_unstemmed | Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep |
| title_short | Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep |
| title_sort | reduction of tannin level in a tropical legume desmodium ovalifolium with polyethylene glycol peg effects on intake and n balance digestion and absorption by sheep |
| topic | animal feeding feed crops desmodium ovalifolium tannins sheep nutrient intake digestibility digestive absorption nitrogen retention taninos ovinos ingestión de nutrientes digestibilidad absorción digestiva retención nitrogenada |
| url | https://hdl.handle.net/10568/44378 |
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