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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
23/02/2015 |
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Data da última atualização: |
23/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TRINDADE, J.; PINTO, C. E.; NEVES, F. P.; MEZZALIRA, J. C.; BREMM, C.; GENRO, T. C. M.; TISCHLER, M. R.; NABINGER, C.; GONDA, H. L.; CARVALHO, P. C. F. |
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Título: |
Forage Allowance as a Target of Grazing Management: Implications on Grazing Time and Forage Searching. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Rangeland Ecology & Management, Littleton, Colorado, USA, v. 65, n. 4, p. 382-393, 2012. |
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Idioma: |
Português |
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Conteúdo: |
This work aimed to evaluate the following hypotheses: 1) the daily grazing time (GT) and 2) forage searching are more associated with the sward structure than with the levels of daily forage allowance (FA). To this end we proposed a model that was tested through an analysis of the sward structure, grazing time, and displacement in grazing by heifers on the natural grassland of the Pampa Biome (southern Brazil), which has been managed by FA levels since 1986. For three seasons, between January 2009 and February 2010, we evaluated the effect of FA on the main descriptors of the sward structure (herbage mass, sward height, and tussocks frequency) and the effect of these on the GT, displacement rate (DR), and daily displacement (D) in grazing. The data were analyzed with the use of regression and descriptive analyses from three-dimensional contour graphs with the data of the sward structure and GT. The DR was not associated with the FA levels or sward structure; however, the DR presented a positive linear relationship with the D and GT. The incremental change in the GT was accompanied by an increase in the D. Lastly, independently of the level of the FA and season evaluated, the lower values of GT were always associated with the following structural configuration: forage mass between 1 400 and 2 200 kg DM ha1, sward height between 9 and 13 cm, and tussock levels not exceeding 35%. Outside these limits, a penalty occurred in the GT and displacement patterns of the heifers. We found evidence that a better understanding of the cause?effect relationships between the sward structure and the ingestive behavior of the animals demonstrates the possibility of increasing the performance of domestic herbivores with important economic and ecological consequences. MenosThis work aimed to evaluate the following hypotheses: 1) the daily grazing time (GT) and 2) forage searching are more associated with the sward structure than with the levels of daily forage allowance (FA). To this end we proposed a model that was tested through an analysis of the sward structure, grazing time, and displacement in grazing by heifers on the natural grassland of the Pampa Biome (southern Brazil), which has been managed by FA levels since 1986. For three seasons, between January 2009 and February 2010, we evaluated the effect of FA on the main descriptors of the sward structure (herbage mass, sward height, and tussocks frequency) and the effect of these on the GT, displacement rate (DR), and daily displacement (D) in grazing. The data were analyzed with the use of regression and descriptive analyses from three-dimensional contour graphs with the data of the sward structure and GT. The DR was not associated with the FA levels or sward structure; however, the DR presented a positive linear relationship with the D and GT. The incremental change in the GT was accompanied by an increase in the D. Lastly, independently of the level of the FA and season evaluated, the lower values of GT were always associated with the following structural configuration: forage mass between 1 400 and 2 200 kg DM ha1, sward height between 9 and 13 cm, and tussock levels not exceeding 35%. Outside these limits, a penalty occurred in the GT and displacement patterns o... Mostrar Tudo |
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Palavras-Chave: |
displacement in grazing; grazing intensity; grazing pressure; ingestive behavior; natural grassland; Pampa Biome. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02712naa a2200301 a 4500
001 1123085
005 2015-02-23
008 2012 bl uuuu u00u1 u #d
100 1 $aTRINDADE, J.
245 $aForage Allowance as a Target of Grazing Management$bImplications on Grazing Time and Forage Searching.$h[electronic resource]
260 $c2012
520 $aThis work aimed to evaluate the following hypotheses: 1) the daily grazing time (GT) and 2) forage searching are more associated with the sward structure than with the levels of daily forage allowance (FA). To this end we proposed a model that was tested through an analysis of the sward structure, grazing time, and displacement in grazing by heifers on the natural grassland of the Pampa Biome (southern Brazil), which has been managed by FA levels since 1986. For three seasons, between January 2009 and February 2010, we evaluated the effect of FA on the main descriptors of the sward structure (herbage mass, sward height, and tussocks frequency) and the effect of these on the GT, displacement rate (DR), and daily displacement (D) in grazing. The data were analyzed with the use of regression and descriptive analyses from three-dimensional contour graphs with the data of the sward structure and GT. The DR was not associated with the FA levels or sward structure; however, the DR presented a positive linear relationship with the D and GT. The incremental change in the GT was accompanied by an increase in the D. Lastly, independently of the level of the FA and season evaluated, the lower values of GT were always associated with the following structural configuration: forage mass between 1 400 and 2 200 kg DM ha1, sward height between 9 and 13 cm, and tussock levels not exceeding 35%. Outside these limits, a penalty occurred in the GT and displacement patterns of the heifers. We found evidence that a better understanding of the cause?effect relationships between the sward structure and the ingestive behavior of the animals demonstrates the possibility of increasing the performance of domestic herbivores with important economic and ecological consequences.
653 $adisplacement in grazing
653 $agrazing intensity
653 $agrazing pressure
653 $aingestive behavior
653 $anatural grassland
653 $aPampa Biome
700 1 $aPINTO, C. E.
700 1 $aNEVES, F. P.
700 1 $aMEZZALIRA, J. C.
700 1 $aBREMM, C.
700 1 $aGENRO, T. C. M.
700 1 $aTISCHLER, M. R.
700 1 $aNABINGER, C.
700 1 $aGONDA, H. L.
700 1 $aCARVALHO, P. C. F.
773 $tRangeland Ecology & Management, Littleton, Colorado, USA$gv. 65, n. 4, p. 382-393, 2012.
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Epagri-Sede (Epagri-Sede) |
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| Registros recuperados : 8 | |
| 1. |  | MARINHO, L. R. S.; CASALI, R.; DRUM, J. N.; ZAGO, F. C.; MEZZALIRA, J. C.; FORELL, F.; MEZZALIRA, A. Toxidade do etanol a 0,1% no cultivo de embriões bovinos produzidos in vitro. In: SEMINÁRIO REGIONAL DOS PÓS-GRADUANDOS EM CIÊNCIAS AGRÁRIAS, 3., 2010, Lages, SC. Anais... Lages: UDESC, 2010.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Epagri-Sede. |
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| 2. | | TRINDADE, J.; NEVES, F. P.; PINTO, C. E.; BREMM, C.; MEZZALIRA, J. C.; NADIN, L. B.; GENRO, T. C. M.; GONDA, H. L.; CARVALHO, P. C. F. Daily Forage Intake by Cattle on Natural Grassland: Response to Forage Allowance and Sward Structure. Rangeland Ecology & Management, Davis, CA, USA, v. 69, n. 1, p. 59-67, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - B |
| Biblioteca(s): Epagri-Sede. |
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| 3. | | MEZZALIRA, J. C.; OHLWEILER, L. U.; URIO, M.; GAUDENCIO NETO, S.; MARINHO, L. R. S.; ZAGO, F. C.; FORELL, F.; BERTOLINI, M.; MEZZALIRA, A. Effect of nitrocooler negative pressure and recovery internal on cryotolerance of bovine in vitroproduced embryos. In: ANNUAL CONFERECE OF IETS, ., 2010, Cordoba, Argentina. Proceedings... Sydney, Australia: CSIRO, 2010. p. 210.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Epagri-Sede. |
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| 4. | | MEZZALIRA, J. C.; PINTO, M. G. L.; ZAGO, F. C.; SILVA, A. M.; ALBINO, N.; KLEIN, N.; BORDIGNON, V.; OHLWEILER, L. U.; MEZZALIRA, A. Prenancy of cloned embryos a freemartin cow and endangered breed. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 25., 2011, Cumbuco, CE. [Anais...]. Porto Alegre, RS: UFRGS, 2011. p. 444.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Epagri-Sede. |
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| 5. | | GERGER, R. P. C.; FORELL, F.; MEZZALIRA, J. C.; ZAGO, F. C.; VIEIRA, F. K.; MACHADO JÚNIOR, J.; OHLWEILER, L. U.; RAUBER, L. P.; RODRIGUES, J. L. R.; AMBRÓSIO, C. E.; MIGLINO, M. A.; MEZZALIRA, A.; BERTOLINI, M. Effect of Fusion-Activation Interval and Embryo Aggregation on In Vitro and In Vivo Development of Cloned Bovine Embryos Produced by Handmade Cloning. In: ANNUAL CONFERENCE OF IETS, 2010, Córdoba, Argentina. Proceedings... Sydney, Austrália: Csiro, 2010. p. 185-186.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Epagri-Sede. |
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| 6. | | TRINDADE, J.; PINTO, C. E.; NEVES, F. P.; MEZZALIRA, J. C.; BREMM, C.; GENRO, T. C. M.; TISCHLER, M. R.; NABINGER, C.; GONDA, H. L.; CARVALHO, P. C. F. Forage Allowance as a Target of Grazing Management: Implications on Grazing Time and Forage Searching. Rangeland Ecology & Management, Littleton, Colorado, USA, v. 65, n. 4, p. 382-393, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - B |
| Biblioteca(s): Epagri-Sede. |
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| 7. | | CARVALHO, P. C. F.; MEZZALIRA, J. C.; FONSECA, L.; WESP, C. L.; TRINDADE, J. K.; NEVES, F. P.; PINTO, C. E.; AMARAL, M. F.; BREMM, C.; AMARAL, G. A.; SANTOS, D. T.; CHOPA, F. S.; GONDA, H.; NABINGER, C.; POLI, C. H. E. C. Do bocado ao sitio de pastejo: manejo em 3D para compatibilizar a estrutura do pasto e o processo de pastejo. In: SIMPÓSIO DE FORRAGICULTURA, 7. CONGRESSO DE FORRAGICULTURA E PASTAGENS, 3., 2009, Lavras, MG. [Anais...]. Lavras, MG: UFLA, 2009. p. 175-198.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Epagri-Sede. |
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| 8. | | ORTIGARI JÚNIOR, I.; GERGER, R. P. C.; RIBEIRO, E. S.; MEZZALIRA, J. C.; ZAGO, F. C.; GAUDÊNCIO NETO, S.; OHLWEILER, L. U.; MARTINS, L. T.; BERTOLINI, L. R.; FORELL, F.; COSTA, U. M.; LOPES, R. F. F.; RODRIGUES, J. L.; AMBRÓSIO, C. E.; MIGLINO, M. A.; MEZZALIRA, A.; BERTOLINI, M. Efeito da evolução técnica na eficiência na clonagem por handmade cloning em bovinos. In: REUNIÃO ANUAL DA SOCIEDADE BRASILERIA DE TECNOLOGIA DE EMBRIÕES, 24., 2010, Porto de Galinhas, PE. Anais... Porto Alegre, RS: UFRGS, 2010. p. 803.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Epagri-Sede. |
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| Registros recuperados : 8 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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