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Registro Completo |
Biblioteca(s): |
Epagri-Chapecó. |
Data corrente: |
14/11/2000 |
Data da última atualização: |
14/11/2000 |
Autoria: |
BRASIL. Ministerio da Agricultura. |
Título: |
A cultura da pimenta-do-reino. |
Ano de publicação: |
1973 |
Fonte/Imprenta: |
Belem, PA: Acar-PA, 1973. |
Páginas: |
42p. |
Idioma: |
Português |
Palavras-Chave: |
OLERICULTURA; PIMENTA-DO-REINO; PRATICA CULTURAL. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00377nam a2200145 a 4500 001 1114098 005 2000-11-14 008 1973 bl uuuu u0uu1 u #d 100 1 $aBRASIL. Ministerio da Agricultura. 245 $aA cultura da pimenta-do-reino. 260 $aBelem, PA: Acar-PA$c1973 300 $a42p. 653 $aOLERICULTURA 653 $aPIMENTA-DO-REINO 653 $aPRATICA CULTURAL
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Epagri-Chapecó (Epagri-Chapecó) |
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Biblioteca(s): |
Epagri-Sede. |
Data corrente: |
23/02/2015 |
Data da última atualização: |
23/02/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - B |
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. |
Título: |
Forage Allowance as a Target of Grazing Management: Implications on Grazing Time and Forage Searching. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Rangeland Ecology & Management, Littleton, Colorado, USA, v. 65, n. 4, p. 382-393, 2012. |
Idioma: |
Português |
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 |
Palavras-Chave: |
displacement in grazing; grazing intensity; grazing pressure; ingestive behavior; natural grassland; Pampa Biome. |
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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