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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados; Embrapa Soja. |
Data corrente: |
04/03/1998 |
Data da última atualização: |
17/03/2008 |
Autoria: |
SILVA, J. F. V.; HIROMOTO, D. M.; TAKEDA, C.; HIGASHI, W. H. |
Título: |
Dinâmica populacional do nematóide de cisto da soja, Heterodera glycines, em semeadura direta e convencional. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 19., 1997, Jaboticabal. Ata e resumos. Londrina: Embrapa-CNPSo, 1997. |
Páginas: |
p. 201. |
Série: |
(Embrapa-CNPSo. Documentos, 107). |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Cerraso; Nematoide de cisto da soja; Soybean cyst nematode. |
Thesagro: |
Dinâmica Populacional; Glycine Max; Heterodera Glycines; Semeadura; Soja. |
Thesaurus Nal: |
Brazil; sowing; soybeans. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00965naa a2200313 a 4500 001 1462227 005 2008-03-17 008 1997 bl uuuu u00u1 u #d 100 1 $aSILVA, J. F. V. 245 $aDinâmica populacional do nematóide de cisto da soja, Heterodera glycines, em semeadura direta e convencional. 260 $c1997 300 $ap. 201. 490 $a(Embrapa-CNPSo. Documentos, 107). 650 $aBrazil 650 $asowing 650 $asoybeans 650 $aDinâmica Populacional 650 $aGlycine Max 650 $aHeterodera Glycines 650 $aSemeadura 650 $aSoja 653 $aBrasil 653 $aCerraso 653 $aNematoide de cisto da soja 653 $aSoybean cyst nematode 700 1 $aHIROMOTO, D. M. 700 1 $aTAKEDA, C. 700 1 $aHIGASHI, W. H. 773 $tIn: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 19., 1997, Jaboticabal. Ata e resumos. Londrina: Embrapa-CNPSo, 1997.
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Embrapa Soja (CNPSO) |
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Registro Completo
Biblioteca(s): |
Embrapa Cerrados; Embrapa Gado de Leite. |
Data corrente: |
30/12/2020 |
Data da última atualização: |
30/12/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
PEREIRA, F. C.; MACHADO FILHO, L. C. P.; KAZAMA, D. C. S.; GUIMARAES JUNIOR, R.; PEREIRA, L. G. R.; Enríquez-Hidalgo, D. |
Afiliação: |
ROBERTO GUIMARAES JUNIOR, CPAC; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL. |
Título: |
Effect of recovery period of mixture pasture on cattle behaviour, pasture biomass production and pasture nutritional value. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Animal, v. 14, n. 9, 2020. |
Páginas: |
p. 1961?1968 |
Idioma: |
Inglês |
Conteúdo: |
Pasture management that considers pasture growth dynamics remains an open question. Conceptually, such management must allow for grazing only after the recuperation of the pasture between two separate timely grazing periods when pasture reaches optimum recovery, as per the first law of Voisin?s rational grazing system. The optimum recovery period not only implies a pasture with better nutritional value and higher biomass yield but one that also reduces the production of enteric methane (CH4) to improve the grazing efficiency of cattle. Therefore, this study aimed to evaluate three different recovery periods (RP) of mixed grasses on the grazing behaviour of heifers, as well as herbage selectivity, herbage yield and nutritional value, in vitro degradability and CH4 production. Based on these criteria, three pasture RPs of 24 (RP24), 35 (RP3) and 46 (RP46) days were evaluated in six blocks using a randomized block design. At each predetermined RP, samples of the pasture were taken before the animals were allowed to graze. Right after collecting the pasture samples, heifers accessed the pasture during 4 h consecutively for grazing simulation and behavioural observations. We also measured the bite rate of each animal. The pasture growing for 24 days had the highest biomass production, best nutritional value, best efficiency of in vitro CH4 relative emission (ml) per DM degraded (g) and bite rate of the three RPs. Heifers all selected their herbage, irrespective of RP, but with different nutritional value and higher in vitro degradability. However, this did not change the production of in vitro CH4. Considering the growth conditions of the area where the study was performed, we recommend the shorter RP24 as the most suitable during the summer season. The study?s findings support the idea of management intervention to increase the quality of grazing systems. MenosPasture management that considers pasture growth dynamics remains an open question. Conceptually, such management must allow for grazing only after the recuperation of the pasture between two separate timely grazing periods when pasture reaches optimum recovery, as per the first law of Voisin?s rational grazing system. The optimum recovery period not only implies a pasture with better nutritional value and higher biomass yield but one that also reduces the production of enteric methane (CH4) to improve the grazing efficiency of cattle. Therefore, this study aimed to evaluate three different recovery periods (RP) of mixed grasses on the grazing behaviour of heifers, as well as herbage selectivity, herbage yield and nutritional value, in vitro degradability and CH4 production. Based on these criteria, three pasture RPs of 24 (RP24), 35 (RP3) and 46 (RP46) days were evaluated in six blocks using a randomized block design. At each predetermined RP, samples of the pasture were taken before the animals were allowed to graze. Right after collecting the pasture samples, heifers accessed the pasture during 4 h consecutively for grazing simulation and behavioural observations. We also measured the bite rate of each animal. The pasture growing for 24 days had the highest biomass production, best nutritional value, best efficiency of in vitro CH4 relative emission (ml) per DM degraded (g) and bite rate of the three RPs. Heifers all selected their herbage, irrespective of RP, but with di... Mostrar Tudo |
Thesagro: |
Gado; Impacto Ambiental; Manejo; Pastejo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02593naa a2200241 a 4500 001 2128865 005 2020-12-30 008 2020 bl uuuu u00u1 u #d 100 1 $aPEREIRA, F. C. 245 $aEffect of recovery period of mixture pasture on cattle behaviour, pasture biomass production and pasture nutritional value.$h[electronic resource] 260 $c2020 300 $ap. 1961?1968 520 $aPasture management that considers pasture growth dynamics remains an open question. Conceptually, such management must allow for grazing only after the recuperation of the pasture between two separate timely grazing periods when pasture reaches optimum recovery, as per the first law of Voisin?s rational grazing system. The optimum recovery period not only implies a pasture with better nutritional value and higher biomass yield but one that also reduces the production of enteric methane (CH4) to improve the grazing efficiency of cattle. Therefore, this study aimed to evaluate three different recovery periods (RP) of mixed grasses on the grazing behaviour of heifers, as well as herbage selectivity, herbage yield and nutritional value, in vitro degradability and CH4 production. Based on these criteria, three pasture RPs of 24 (RP24), 35 (RP3) and 46 (RP46) days were evaluated in six blocks using a randomized block design. At each predetermined RP, samples of the pasture were taken before the animals were allowed to graze. Right after collecting the pasture samples, heifers accessed the pasture during 4 h consecutively for grazing simulation and behavioural observations. We also measured the bite rate of each animal. The pasture growing for 24 days had the highest biomass production, best nutritional value, best efficiency of in vitro CH4 relative emission (ml) per DM degraded (g) and bite rate of the three RPs. Heifers all selected their herbage, irrespective of RP, but with different nutritional value and higher in vitro degradability. However, this did not change the production of in vitro CH4. Considering the growth conditions of the area where the study was performed, we recommend the shorter RP24 as the most suitable during the summer season. The study?s findings support the idea of management intervention to increase the quality of grazing systems. 650 $aGado 650 $aImpacto Ambiental 650 $aManejo 650 $aPastejo 700 1 $aMACHADO FILHO, L. C. P. 700 1 $aKAZAMA, D. C. S. 700 1 $aGUIMARAES JUNIOR, R. 700 1 $aPEREIRA, L. G. R. 700 1 $aEnríquez-Hidalgo, D. 773 $tAnimal$gv. 14, n. 9, 2020.
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