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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
28/01/2015 |
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Data da última atualização: |
08/05/2023 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
COSTA, F. de S.; CAMPOS FILHO, M. D.; SANTIAGO, A. C. C.; MAGALHÃES, I. B.; CORDEIRO, L. da S.; LIMA, A. P. de; MAIA, G. R.; SILVA, E. P.; KLEIN, M. A.; SILVA, F. de A. C.; BARDALES, N. G.; QUEIROZ, L. R.; BRITO, E. de S. |
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Afiliação: |
FALBERNI DE SOUZA COSTA, CPAF-AC; MANOEL DELSON CAMPOS FILHO, CPAF-AC; ANTÔNIO CLEBSON CAMELI SANTIAGO, SECRETARIA DE EXTENSÃO AGROFLORESTAL E PRODUÇÃO FAMILIAR; IZANETE BATISTA MAGALHÃES, SECRETARIA DE ESTADO DE AGROPECUÁRIA; LÍVIA DA SILVA CORDEIRO; ALDAIR PEREIRA DE LIMA, SECRETARIA DE EXTENSÃO AGROFLORESTAL E PRODUÇÃO FAMILIAR; GENILSON RODRIGUES MAIA, SECRETARIA DE ESTADO DE AGROPECUÁRIA; EDENILSON PINHEIRO SILVA, CAIXA ECONÔMICA FEDERAL; MARCELO ANDRE KLEIN, CPAF-AC; FRANCISCO DE ASSIS CORREA SILVA, CPAF-AC; NILSON GOMES BARDALES, INSTITUTO DE MUDANÇAS CLIMÁTICAS; LUCIANO RODRIGUES QUEIROZ, CPAFAC; ERBESSON DE SOUZA BRITO, UNIVERSIDADE DO ESTADO DE SANTA CATARINA. |
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Título: |
Agricultura conservacionista na produção familiar de mandioca e milho no Juruá, Estado do Acre: efeitos da adoção nos resultados de safras de 2006 a 2014. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Rio Branco, AC: Embrapa Acre, 2014. |
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Páginas: |
10 p. |
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Série: |
(Embrapa Acre. Comunicado técnico, 186). |
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ISSN: |
0100-8668 |
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Idioma: |
Português |
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Conteúdo: |
As formas e as etapas atuais do uso do solo no Juruá, uma das regionais de desenvolvimento do Estado do Acre, não diferem do resto da Amazônia Brasileira. Envolvem o sistema de derruba e queima da floresta, tanto primária quanto secundária, o uso geral do solo em monocultivo e/ou em sucessão por períodos de até 5 anos com culturas exigentes em fertilidade do solo (arroz, feijão e milho nos dois primeiros anos) e depois com mandioca, menos exigente e tolerante à acidez do solo. Os resultados dos cultivos de mandioca e milho, apresentados neste comunicado técnico, são produtos de uma pesquisa conduzida em condições de campo, adotando-se princípios da agricultura conservacionista. |
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Palavras-Chave: |
Acre; Agricultura conservacionista; Amazonia Occidental; Amazônia Ocidental; Derruba e queima; Explotación agrícola familiar; Juruá (AC); Maiz; Prácticas de conservación de agrícolas; Rendimiento de los cultivos; Western Amazon. |
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Thesagro: |
Agricultura familiar; Cultivo Migratório; Mandioca; Manihot esculenta; Milho; Rendimento; Zea mays. |
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Thesaurus Nal: |
Agricultural conservation practice; Cassava; Corn; Crop yield; Family farms; Shifting cultivation. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/116756/1/25424.pdf
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Marc: |
LEADER 02411nam a2200577 a 4500
001 2007022
005 2023-05-08
008 2014 bl uuuu u0uu1 u #d
022 $a0100-8668
100 1 $aCOSTA, F. de S.
245 $aAgricultura conservacionista na produção familiar de mandioca e milho no Juruá, Estado do Acre$befeitos da adoção nos resultados de safras de 2006 a 2014.$h[electronic resource]
260 $aRio Branco, AC: Embrapa Acre$c2014
300 $a10 p.
490 $a(Embrapa Acre. Comunicado técnico, 186).
520 $aAs formas e as etapas atuais do uso do solo no Juruá, uma das regionais de desenvolvimento do Estado do Acre, não diferem do resto da Amazônia Brasileira. Envolvem o sistema de derruba e queima da floresta, tanto primária quanto secundária, o uso geral do solo em monocultivo e/ou em sucessão por períodos de até 5 anos com culturas exigentes em fertilidade do solo (arroz, feijão e milho nos dois primeiros anos) e depois com mandioca, menos exigente e tolerante à acidez do solo. Os resultados dos cultivos de mandioca e milho, apresentados neste comunicado técnico, são produtos de uma pesquisa conduzida em condições de campo, adotando-se princípios da agricultura conservacionista.
650 $aAgricultural conservation practice
650 $aCassava
650 $aCorn
650 $aCrop yield
650 $aFamily farms
650 $aShifting cultivation
650 $aAgricultura familiar
650 $aCultivo Migratório
650 $aMandioca
650 $aManihot esculenta
650 $aMilho
650 $aRendimento
650 $aZea mays
653 $aAcre
653 $aAgricultura conservacionista
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aDerruba e queima
653 $aExplotación agrícola familiar
653 $aJuruá (AC)
653 $aMaiz
653 $aPrácticas de conservación de agrícolas
653 $aRendimiento de los cultivos
653 $aWestern Amazon
700 1 $aCAMPOS FILHO, M. D.
700 1 $aSANTIAGO, A. C. C.
700 1 $aMAGALHÃES, I. B.
700 1 $aCORDEIRO, L. da S.
700 1 $aLIMA, A. P. de
700 1 $aMAIA, G. R.
700 1 $aSILVA, E. P.
700 1 $aKLEIN, M. A.
700 1 $aSILVA, F. de A. C.
700 1 $aBARDALES, N. G.
700 1 $aQUEIROZ, L. R.
700 1 $aBRITO, E. de S.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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Biblioteca |
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Origem |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
03/04/2020 |
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Data da última atualização: |
20/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MÉO FILHO, P.; BERNDT, A.; MARCONDES, C. R.; PEDROSO, A. de F.; SAKAMOTO, L. S.; BOAS, D. F. V.; RODRIGUES, P. H. M.; RIVERO, M. J.; BUENO, I. C. S. |
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Afiliação: |
Paulo Méo?Filho, USP; ALEXANDRE BERNDT, CPPSE; CINTIA RIGHETTI MARCONDES, CPPSE; ANDRE DE FARIA PEDROSO, CPPSE; Leandro S. Sakamoto, USP; Daniella Flavia Vilas Boas, UNEMAT; Paulo H. M. Rodrigues, USP; M. Jordana Rivero, Rothamsted Research; Ives C. S. Bueno, USP. |
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Título: |
Methane emissions, performance and carcass characteristics of different lines of beef steers reared on pasture and finished in feedlot. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Animals, v. 10, n. 303, 2020. |
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Páginas: |
15 p. |
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ISSN: |
2076-2615 |
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DOI: |
10.3390/ani10020303 |
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Idioma: |
Inglês |
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Conteúdo: |
The present study aimed to investigate whether different lines of a composite breed (5/8 Charolais × 3/8 Zebu), formed at different times, and genetically improved, would result in differences in animal performance, enteric methane emissions, and carcass traits. Forty?six Canchim steers (15 months, 280 ± 33 kg liveweight) from three different lines were used: old, new, and their cross. These three breed lines were considered the treatments (arranged in four randomized blocks based on initial liveweight) and were evaluated under grazing and feedlot conditions in relation to the performance and emission of enteric methane. During the grazing period, the new line was found to be superior to the old only in relation to the average daily liveweight gain (0.692 vs. 0.547 kg/day), and with no differences in relation to the cross line (0.692 vs. 0.620). In the feedlot finishing phase, only the average daily liveweight gain was significantly higher in the new line compared to the cross and old line (1.44 vs. 1.32 and 1.23 kg/day). The new and cross lines demonstrated higher dry matter intake when compared to the old line (10.25 and 10.42 vs. 9.11 kg/day), with the crossline Animals 2020, 10, 303 2 of 15 animals demonstrating the best feed conversion. The new line showed higher enteric methane emissions compared to the old line (178 vs. 156 g/day). The line had an effect on the carcass dressing of the animals, with greater fat thickness in carcasses from the new and cross lines than the old line (4.4 and 3.8 vs. 3.2 mm). Canchim cattle selected for improved productive performance characteristics does not guarantee animals with lower methane emissions under grazing conditions; while in feedlots, can lead to increased daily feed consumption, and hence, to higher emissions of methane. MenosThe present study aimed to investigate whether different lines of a composite breed (5/8 Charolais × 3/8 Zebu), formed at different times, and genetically improved, would result in differences in animal performance, enteric methane emissions, and carcass traits. Forty?six Canchim steers (15 months, 280 ± 33 kg liveweight) from three different lines were used: old, new, and their cross. These three breed lines were considered the treatments (arranged in four randomized blocks based on initial liveweight) and were evaluated under grazing and feedlot conditions in relation to the performance and emission of enteric methane. During the grazing period, the new line was found to be superior to the old only in relation to the average daily liveweight gain (0.692 vs. 0.547 kg/day), and with no differences in relation to the cross line (0.692 vs. 0.620). In the feedlot finishing phase, only the average daily liveweight gain was significantly higher in the new line compared to the cross and old line (1.44 vs. 1.32 and 1.23 kg/day). The new and cross lines demonstrated higher dry matter intake when compared to the old line (10.25 and 10.42 vs. 9.11 kg/day), with the crossline Animals 2020, 10, 303 2 of 15 animals demonstrating the best feed conversion. The new line showed higher enteric methane emissions compared to the old line (178 vs. 156 g/day). The line had an effect on the carcass dressing of the animals, with greater fat thickness in carcasses from the new and cross lines than t... Mostrar Tudo |
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Thesaurus NAL: |
Beef cattle; Genetics; Greenhouse gases; Growth performance; Nutrition. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212160/1/MethaneEmissionsPerformance.pdf
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Marc: |
LEADER 02707naa a2200313 a 4500
001 2121538
005 2020-04-20
008 2020 bl uuuu u00u1 u #d
022 $a2076-2615
024 7 $a10.3390/ani10020303$2DOI
100 1 $aMÉO FILHO, P.
245 $aMethane emissions, performance and carcass characteristics of different lines of beef steers reared on pasture and finished in feedlot.$h[electronic resource]
260 $c2020
300 $a15 p.
520 $aThe present study aimed to investigate whether different lines of a composite breed (5/8 Charolais × 3/8 Zebu), formed at different times, and genetically improved, would result in differences in animal performance, enteric methane emissions, and carcass traits. Forty?six Canchim steers (15 months, 280 ± 33 kg liveweight) from three different lines were used: old, new, and their cross. These three breed lines were considered the treatments (arranged in four randomized blocks based on initial liveweight) and were evaluated under grazing and feedlot conditions in relation to the performance and emission of enteric methane. During the grazing period, the new line was found to be superior to the old only in relation to the average daily liveweight gain (0.692 vs. 0.547 kg/day), and with no differences in relation to the cross line (0.692 vs. 0.620). In the feedlot finishing phase, only the average daily liveweight gain was significantly higher in the new line compared to the cross and old line (1.44 vs. 1.32 and 1.23 kg/day). The new and cross lines demonstrated higher dry matter intake when compared to the old line (10.25 and 10.42 vs. 9.11 kg/day), with the crossline Animals 2020, 10, 303 2 of 15 animals demonstrating the best feed conversion. The new line showed higher enteric methane emissions compared to the old line (178 vs. 156 g/day). The line had an effect on the carcass dressing of the animals, with greater fat thickness in carcasses from the new and cross lines than the old line (4.4 and 3.8 vs. 3.2 mm). Canchim cattle selected for improved productive performance characteristics does not guarantee animals with lower methane emissions under grazing conditions; while in feedlots, can lead to increased daily feed consumption, and hence, to higher emissions of methane.
650 $aBeef cattle
650 $aGenetics
650 $aGreenhouse gases
650 $aGrowth performance
650 $aNutrition
700 1 $aBERNDT, A.
700 1 $aMARCONDES, C. R.
700 1 $aPEDROSO, A. de F.
700 1 $aSAKAMOTO, L. S.
700 1 $aBOAS, D. F. V.
700 1 $aRODRIGUES, P. H. M.
700 1 $aRIVERO, M. J.
700 1 $aBUENO, I. C. S.
773 $tAnimals$gv. 10, n. 303, 2020.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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