| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
20/10/2009 |
|
Data da última atualização: |
26/10/2009 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
MARCHAO, R. L.; LAVELLE, P.; CELINI, L.; BALBINO, L. C.; VILELA, L.; BECQUER, T. |
|
Afiliação: |
ROBELIO LEANDRO MARCHAO, CPAC; Patrick Lavelle, Institut de Recherche pour le Dévelopment - IRD; Leonide Celini, Université de Paris; LUIZ CARLOS BALBINO, SNT-GG; LOURIVAL VILELA, CPAC; Thierry Becquer, Institut de Recherche pour le Dévelopment - IRD. |
|
Título: |
Soil macrofauna under integrated crop-livestock systems in a Brazilian Cerrado Ferralsol. |
|
Ano de publicação: |
2009 |
|
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, v. 44, n. 8, p. 1011-1020, ago. 2009. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The objective of this work was to assess the effects of integrated crop-livestock systems, associated with two tillage and two fertilization regimes, on the abundance and diversity of the soil macrofauna. Four different management systems were studied: continuous pasture (mixed grass); continuous crop; two crop-livestock rotations (crop/pasture and pasture/crop); and native Cerrado as a control. Macrofauna was sampled using a modified Tropical Soil Biology and Fertility method, and all individuals were counted and identified at the morphospecies level for each plot. A total of 194 morphospecies were found, distributed among 30 groups, and the most representative in decreasing order of density were: Isoptera, Coleoptera larvae, Formicidae, Oligochaeta, Coleoptera adult, Diplopoda, Hemiptera, Diptera larvae, Arachnida, Chilopoda, Lepidoptera, Gasteropoda, Blattodea and Orthoptera. Soil management systems and tillage regimes affected the structure of soil macrofauna, and integrated crop-livestock systems, associated with no-tillage, especially with grass/legume species associations, had more favorable conditions for the development of "soil engineers" compared with continuous pasture or arable crops. Soil macrofauna density and diversity, assessed at morphospecies level, are effective data to measure the impact of land use in Cerrado soils. |
|
Palavras-Chave: |
Integração lavoura-pecuária; Qualidade do solo. |
|
Thesagro: |
Biodiversidade; Fertilidade do solo; Plantio direto. |
|
Categoria do assunto: |
A Sistemas de Cultivo |
|
Marc: |
LEADER 02076naa a2200241 a 4500
001 1572733
005 2009-10-26
008 2009 bl --- 0-- u #d
100 1 $aMARCHAO, R. L.
245 $aSoil macrofauna under integrated crop-livestock systems in a Brazilian Cerrado Ferralsol.
260 $c2009
520 $aThe objective of this work was to assess the effects of integrated crop-livestock systems, associated with two tillage and two fertilization regimes, on the abundance and diversity of the soil macrofauna. Four different management systems were studied: continuous pasture (mixed grass); continuous crop; two crop-livestock rotations (crop/pasture and pasture/crop); and native Cerrado as a control. Macrofauna was sampled using a modified Tropical Soil Biology and Fertility method, and all individuals were counted and identified at the morphospecies level for each plot. A total of 194 morphospecies were found, distributed among 30 groups, and the most representative in decreasing order of density were: Isoptera, Coleoptera larvae, Formicidae, Oligochaeta, Coleoptera adult, Diplopoda, Hemiptera, Diptera larvae, Arachnida, Chilopoda, Lepidoptera, Gasteropoda, Blattodea and Orthoptera. Soil management systems and tillage regimes affected the structure of soil macrofauna, and integrated crop-livestock systems, associated with no-tillage, especially with grass/legume species associations, had more favorable conditions for the development of "soil engineers" compared with continuous pasture or arable crops. Soil macrofauna density and diversity, assessed at morphospecies level, are effective data to measure the impact of land use in Cerrado soils.
650 $aBiodiversidade
650 $aFertilidade do solo
650 $aPlantio direto
653 $aIntegração lavoura-pecuária
653 $aQualidade do solo
700 1 $aLAVELLE, P.
700 1 $aCELINI, L.
700 1 $aBALBINO, L. C.
700 1 $aVILELA, L.
700 1 $aBECQUER, T.
773 $tPesquisa Agropecuária Brasileira, Brasília$gv. 44, n. 8, p. 1011-1020, ago. 2009.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
24/08/2023 |
|
Data da última atualização: |
31/10/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 3 |
|
Autoria: |
OLIVEIRA, C. S.; ROSA, P. M. da S.; CAMARGO, A. J. dos R.; FERES, L. F.; SARAIVA, N. Z.; OLIVEIRA, L. Z.; CAMARGO, L. S. de A. |
|
Afiliação: |
CLARA SLADE OLIVEIRA, CNPGL; PAOLA MARIA DA SILVA ROSA; AGOSTINHO JORGE DOS REIS CAMARGO, Pesagro; LUIZ FERNANDO FERES, Universidade José do Rosário Vellano-Unifenas; NAIARA ZOCCAL SARAIVA, CNPGL; LETICIA ZOCCOLARO OLIVEIRA, Universidade Federal de Minas Gerais; LUIZ SERGIO DE ALMEIDA CAMARGO, CNPGL. |
|
Título: |
Outstanding Gir oocyte donors: how does individual factor affect in vitro embryo production efficiency? |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Animal Science Journal, v. 94, e13862, 2023. |
|
DOI: |
https://doi.org/10.1111/asj.13862 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The oocyte donor plays a pivotal role in bovine in vitro embryo production (IVP) success. The individual factor affects blastocyst/oocyte ratio and determine the existence of outstanding performing animals. The aim of this study was to assess the extent of individual factor effect to IVP efficiency, in a population of Gir oocyte donors. Extreme (high or low IVP efficiency based on blastocyst/oocyte ratio) animals were selected out of a population of 250 oocyte donors (1,734 observations) to form high (>0.48, n = 40), average (0.17-0.48, n = 168), and low (<0.17, n = 42) efficiency donor groups. Cumulus-oocyte complex indicators (total number, IVF-grade number, and IVF-grade/total ratio) were lower (p < 0.05) in high efficiency donors. The number of blastocysts per OPU was analyzed for highest performing bull, and an increase (p < 0.05) in high efficiency donors and a decrease (p < 0.05) in low efficiency donors were noticed, compared to average efficiency donors. The number of pregnancies obtained per OPU was affected (p = 0.017) by donor?s efficiency (low: 0:600:09, average: 1:170:07, high: 2:570:26), being 4.3-fold higher in high than in low efficiency donors. We conclude that producing embryos from high efficiency blastocyst/oocyte ratio donors increases blastocyst and pregnancy numbers by OPU, being an important indicator for donor selection in IVP programs |
|
Palavras-Chave: |
Eficiência da PIV; Fertilização in vitro. |
|
Thesagro: |
Gado Gir; Reprodução Animal. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
Marc: |
LEADER 02181naa a2200253 a 4500
001 2156100
005 2023-10-31
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/asj.13862$2DOI
100 1 $aOLIVEIRA, C. S.
245 $aOutstanding Gir oocyte donors$bhow does individual factor affect in vitro embryo production efficiency?$h[electronic resource]
260 $c2023
520 $aThe oocyte donor plays a pivotal role in bovine in vitro embryo production (IVP) success. The individual factor affects blastocyst/oocyte ratio and determine the existence of outstanding performing animals. The aim of this study was to assess the extent of individual factor effect to IVP efficiency, in a population of Gir oocyte donors. Extreme (high or low IVP efficiency based on blastocyst/oocyte ratio) animals were selected out of a population of 250 oocyte donors (1,734 observations) to form high (>0.48, n = 40), average (0.17-0.48, n = 168), and low (<0.17, n = 42) efficiency donor groups. Cumulus-oocyte complex indicators (total number, IVF-grade number, and IVF-grade/total ratio) were lower (p < 0.05) in high efficiency donors. The number of blastocysts per OPU was analyzed for highest performing bull, and an increase (p < 0.05) in high efficiency donors and a decrease (p < 0.05) in low efficiency donors were noticed, compared to average efficiency donors. The number of pregnancies obtained per OPU was affected (p = 0.017) by donor?s efficiency (low: 0:600:09, average: 1:170:07, high: 2:570:26), being 4.3-fold higher in high than in low efficiency donors. We conclude that producing embryos from high efficiency blastocyst/oocyte ratio donors increases blastocyst and pregnancy numbers by OPU, being an important indicator for donor selection in IVP programs
650 $aGado Gir
650 $aReprodução Animal
653 $aEficiência da PIV
653 $aFertilização in vitro
700 1 $aROSA, P. M. da S.
700 1 $aCAMARGO, A. J. dos R.
700 1 $aFERES, L. F.
700 1 $aSARAIVA, N. Z.
700 1 $aOLIVEIRA, L. Z.
700 1 $aCAMARGO, L. S. de A.
773 $tAnimal Science Journal$gv. 94, e13862, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
