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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
31/10/1997 |
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Data da última atualização: |
15/01/2026 |
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Autoria: |
GOETSCH, A. L.; PATIL, A. R.; WANG, Z. S.; PARK, K. K.; GALLOWAY, D. L.; ROSSI, J. E.; KOUAKOU, B. |
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Título: |
Net flux of nutrients across splanchnic tissues in wethers consuming bermudagrass or ryegrass-wheat hay supplemented with rumen undegradable protein. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 25, n. 2, p. 119-128, 1997. |
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DOI: |
https://doi-org.ez103.periodicos.capes.gov.br/10.1016/S0921-4488(96)00981-9 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Crossbred wethers (14, 37 ± 1.5 kg BW and 10 months old) were used in a 21-day experiment (2 × 2 factorial) to determine effects of dietary grass source (tropical vs temperate) on response to rumen undegradable protein supplementation in oxygen consumption by, and net flux of N fractions across, the portal-drained viscera and liver. Bermudagrass (B; 73.1% NDF and 6.2% CP) or ryegrass-wheat (RW; 65.9% NDF and 8.9% CP) hay was supplemented with 53 g day−1 (DM) of soybean meal (S) or 53 g day−1 (DM) of soybean meal plus 70 g day−1 (DM) of a mixture of feedstuffs high in rumen undegradable protein (SR; 46.6% com gluten, 26.7% feather and 26.7% blood meals). Digestible energy intake (9.1, 10.0, 11.3 and 12.1 MJ day−1) was greater (P < 0.01) for RW than for B, and N intake was 12.5, 21.5, 16.5 and 25.3 g day−1 (SE 1.08) for B-S, B-SR, RW-S and RW-SR, respectively. Splanchnic energy use as a percentage of DE intake was less (P = 0.03) for RW vs B (21.4 vs 27.8%). Supplementation with Sr increased (P = 0.04) alpha-amino N release by the portal-drained viscera (6.6, 22.0, 9.8 and 20.6 mmol h−1) and hepatic uptake (10.9, 25.6, 11.2 and 14.3 mmol h−1 for B-S, B-SR, RW-S and RW-SR, respectively; SE 2.29). Supplementation with Sr increased (P < 0.01) hepatic urea N release (26.7, 48.4, 29.0 and 41.8 mmol h−1) and ammonia N uptake (17.3, 29.7, 23.3 and 26.6 mmol h−1 for B-S, B-SR, RW-S and RW-SR, respectively) more (interaction; P = 0.09 and 0.08, respectively) with B than with RW. In conclusion, these results indicate that DE intake and splanchnic energy consumption for tropical and temperate grasses may influence metabolic fate of rumen undegradable protein N and, thus, impact potential performance benefits of supplementation. Also, unless forage intake is changed, any improvements in animal performance with rumen undegradable protein supplementation would be through increased N absorption without change in energy available to peripheral tissues, regardless of grass source. MenosAbstract: Crossbred wethers (14, 37 ± 1.5 kg BW and 10 months old) were used in a 21-day experiment (2 × 2 factorial) to determine effects of dietary grass source (tropical vs temperate) on response to rumen undegradable protein supplementation in oxygen consumption by, and net flux of N fractions across, the portal-drained viscera and liver. Bermudagrass (B; 73.1% NDF and 6.2% CP) or ryegrass-wheat (RW; 65.9% NDF and 8.9% CP) hay was supplemented with 53 g day−1 (DM) of soybean meal (S) or 53 g day−1 (DM) of soybean meal plus 70 g day−1 (DM) of a mixture of feedstuffs high in rumen undegradable protein (SR; 46.6% com gluten, 26.7% feather and 26.7% blood meals). Digestible energy intake (9.1, 10.0, 11.3 and 12.1 MJ day−1) was greater (P < 0.01) for RW than for B, and N intake was 12.5, 21.5, 16.5 and 25.3 g day−1 (SE 1.08) for B-S, B-SR, RW-S and RW-SR, respectively. Splanchnic energy use as a percentage of DE intake was less (P = 0.03) for RW vs B (21.4 vs 27.8%). Supplementation with Sr increased (P = 0.04) alpha-amino N release by the portal-drained viscera (6.6, 22.0, 9.8 and 20.6 mmol h−1) and hepatic uptake (10.9, 25.6, 11.2 and 14.3 mmol h−1 for B-S, B-SR, RW-S and RW-SR, respectively; SE 2.29). Supplementation with Sr increased (P < 0.01) hepatic urea N release (26.7, 48.4, 29.0 and 41.8 mmol h−1) and ammonia N uptake (17.3, 29.7, 23.3 and 26.6 mmol h−1 for B-S, B-SR, RW-S and RW-SR, respectively) more (interaction; P = 0.09 and 0.08, respectively) with B than with ... Mostrar Tudo |
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Palavras-Chave: |
Rumen undegradable protein; Suplementacao. |
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Thesagro: |
Consumo; Metabolismo; Ovino. |
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Thesaurus Nal: |
Forage; Metabolism; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02972naa a2200301 a 4500
001 1517726
005 2026-01-15
008 1997 bl uuuu u00u1 u #d
024 7 $ahttps://doi-org.ez103.periodicos.capes.gov.br/10.1016/S0921-4488(96)00981-9$2DOI
100 1 $aGOETSCH, A. L.
245 $aNet flux of nutrients across splanchnic tissues in wethers consuming bermudagrass or ryegrass-wheat hay supplemented with rumen undegradable protein.$h[electronic resource]
260 $c1997
520 $aAbstract: Crossbred wethers (14, 37 ± 1.5 kg BW and 10 months old) were used in a 21-day experiment (2 × 2 factorial) to determine effects of dietary grass source (tropical vs temperate) on response to rumen undegradable protein supplementation in oxygen consumption by, and net flux of N fractions across, the portal-drained viscera and liver. Bermudagrass (B; 73.1% NDF and 6.2% CP) or ryegrass-wheat (RW; 65.9% NDF and 8.9% CP) hay was supplemented with 53 g day−1 (DM) of soybean meal (S) or 53 g day−1 (DM) of soybean meal plus 70 g day−1 (DM) of a mixture of feedstuffs high in rumen undegradable protein (SR; 46.6% com gluten, 26.7% feather and 26.7% blood meals). Digestible energy intake (9.1, 10.0, 11.3 and 12.1 MJ day−1) was greater (P < 0.01) for RW than for B, and N intake was 12.5, 21.5, 16.5 and 25.3 g day−1 (SE 1.08) for B-S, B-SR, RW-S and RW-SR, respectively. Splanchnic energy use as a percentage of DE intake was less (P = 0.03) for RW vs B (21.4 vs 27.8%). Supplementation with Sr increased (P = 0.04) alpha-amino N release by the portal-drained viscera (6.6, 22.0, 9.8 and 20.6 mmol h−1) and hepatic uptake (10.9, 25.6, 11.2 and 14.3 mmol h−1 for B-S, B-SR, RW-S and RW-SR, respectively; SE 2.29). Supplementation with Sr increased (P < 0.01) hepatic urea N release (26.7, 48.4, 29.0 and 41.8 mmol h−1) and ammonia N uptake (17.3, 29.7, 23.3 and 26.6 mmol h−1 for B-S, B-SR, RW-S and RW-SR, respectively) more (interaction; P = 0.09 and 0.08, respectively) with B than with RW. In conclusion, these results indicate that DE intake and splanchnic energy consumption for tropical and temperate grasses may influence metabolic fate of rumen undegradable protein N and, thus, impact potential performance benefits of supplementation. Also, unless forage intake is changed, any improvements in animal performance with rumen undegradable protein supplementation would be through increased N absorption without change in energy available to peripheral tissues, regardless of grass source.
650 $aForage
650 $aMetabolism
650 $aSheep
650 $aConsumo
650 $aMetabolismo
650 $aOvino
653 $aRumen undegradable protein
653 $aSuplementacao
700 1 $aPATIL, A. R.
700 1 $aWANG, Z. S.
700 1 $aPARK, K. K.
700 1 $aGALLOWAY, D. L.
700 1 $aROSSI, J. E.
700 1 $aKOUAKOU, B.
773 $tSmall Ruminant Research$gv. 25, n. 2, p. 119-128, 1997.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 2. | | HERNANDES, K. C.; SILVA, D. F. da; SILVEIRA, R. D.; RAMOS, E. A.; LEAO, P. C. de S.; RYBKA, A. C. P.; BIASOTO, A. C. T.; ZINI, C. A.; WELKE, J. E. Assessing vine training systems and rootstocks through a flavoromic approach of grape juices. Food Chemistry, v. 511, 148731, May 2026. On-line.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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