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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Milho e Sorgo. |
Data corrente: |
26/10/2019 |
Data da última atualização: |
06/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MACIEL, I. C. de F.; BARBOSA, F. A.; TOMICH, T. R.; PEREIRA, L. G. R.; ALVARENGA, R. C.; LOPES, L. S.; MALACCO, V. M. R.; ROWNTREE, J. E.; THOMPSON, L. R.; LANA, A. M. Q. |
Afiliação: |
Isabella Cristina de Faria Maciel, Universidade Federal de Minas Gerais; Fabiano Alvim Barbosa, De Heus Animal Nutrition B. V.; THIERRY RIBEIRO TOMICH, CNPGL; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; RAMON COSTA ALVARENGA, CNPMS; Leandro Sâmia Lopes, Universidade Federal de Minas Gerais; Victor Marco Rocha Malacco, Universidade Federal de Minas Gerais; Jason E. Rowntree, Michigan State University; Logan R. Thompson, Michigan State University; Ângela Maria Quintão Lana, Universidade Federal de Minas Gerais. |
Título: |
Could the breed composition improve performance and change the enteric methane emissions from beef cattle in a tropical intensive production system? |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
PlosONE, v. 14, n. 7, e0220247, July 2019. |
DOI: |
https://doi.org/10.1371/journal.pone.0220247 |
Idioma: |
Inglês |
Conteúdo: |
Crossbreeding has been used to improve performance in beef cattle, however the effects of breed composition on methane (CH4) production, yield and intensity from cattle raised in tropical intensive and integrated systems remain unknown. To assess the impact of breed composition on performance and methane emissions, Nellore (NEL; yr 1: BW = 171.5± 19.4 kg; n = 10; yr 2: BW = 215.8±32.3 kg, n = 25) and Angus x Nellore crossbred (AN; yr 1: BW = 214.2±26.4 kg, n = 10; yr 2: BW = 242.5±32.2 kg, n = 25) were compared. The animals grazed on integrated crop-livestock system in the growing phase (stocking rate 2452 kg BW/ha, herbage mass 4,884 kg dry matter (DM)/ha, forage allowance 5.9 kg DM/100kg BW) and then were finished in a feedlot. Steers (n = 8) from each breed composition were randomly selected in each phase to measure CH4 production using a sulfur hexafluoride (SF6) tracer technique and DM intake (DMI) using titanium dioxide. Compared with NEL, AN had both superior total gain and average daily gain (ADG) in the grazing period. The AN presented greater ADG in the feedlot with a shorter finishing period and resulted in greater carcass yield and carcass ADG. Methane production (kg/period) was lower in NEL (19% less) than AN in grazing (P<0.01), and no difference was observed in feedlot. The NEL had less CH4 intensity (CH4/BW) in grazing but greater CH4 per unit of ADG in the feedlot compared to AN. Breed composition did not influence the CH4 yield (CH4/DMI) in either phase, despite the difference in feedlot DMI (kg/day). In conclusion, crossbreeding may be an option to improve performance and reduce the CH4 per ADG in tropical climate conditions, resulting in lower methane emission per kg of meat produced. MenosCrossbreeding has been used to improve performance in beef cattle, however the effects of breed composition on methane (CH4) production, yield and intensity from cattle raised in tropical intensive and integrated systems remain unknown. To assess the impact of breed composition on performance and methane emissions, Nellore (NEL; yr 1: BW = 171.5± 19.4 kg; n = 10; yr 2: BW = 215.8±32.3 kg, n = 25) and Angus x Nellore crossbred (AN; yr 1: BW = 214.2±26.4 kg, n = 10; yr 2: BW = 242.5±32.2 kg, n = 25) were compared. The animals grazed on integrated crop-livestock system in the growing phase (stocking rate 2452 kg BW/ha, herbage mass 4,884 kg dry matter (DM)/ha, forage allowance 5.9 kg DM/100kg BW) and then were finished in a feedlot. Steers (n = 8) from each breed composition were randomly selected in each phase to measure CH4 production using a sulfur hexafluoride (SF6) tracer technique and DM intake (DMI) using titanium dioxide. Compared with NEL, AN had both superior total gain and average daily gain (ADG) in the grazing period. The AN presented greater ADG in the feedlot with a shorter finishing period and resulted in greater carcass yield and carcass ADG. Methane production (kg/period) was lower in NEL (19% less) than AN in grazing (P<0.01), and no difference was observed in feedlot. The NEL had less CH4 intensity (CH4/BW) in grazing but greater CH4 per unit of ADG in the feedlot compared to AN. Breed composition did not influence the CH4 yield (CH4/DMI) in either phase, de... Mostrar Tudo |
Palavras-Chave: |
Integração lavoura-pecuária; Sistema integrado. |
Thesagro: |
Clima Tropical; Cruzamento Animal; Gado de Corte; Gás; Metano; Raça; Sistema de Cultivo. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/203802/1/Artigo-PlosOne-Thierry-Could-breed.pdf
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Marc: |
LEADER 02811naa a2200349 a 4500 001 2113537 005 2024-02-06 008 2019 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1371/journal.pone.0220247$2DOI 100 1 $aMACIEL, I. C. de F. 245 $aCould the breed composition improve performance and change the enteric methane emissions from beef cattle in a tropical intensive production system?$h[electronic resource] 260 $c2019 520 $aCrossbreeding has been used to improve performance in beef cattle, however the effects of breed composition on methane (CH4) production, yield and intensity from cattle raised in tropical intensive and integrated systems remain unknown. To assess the impact of breed composition on performance and methane emissions, Nellore (NEL; yr 1: BW = 171.5± 19.4 kg; n = 10; yr 2: BW = 215.8±32.3 kg, n = 25) and Angus x Nellore crossbred (AN; yr 1: BW = 214.2±26.4 kg, n = 10; yr 2: BW = 242.5±32.2 kg, n = 25) were compared. The animals grazed on integrated crop-livestock system in the growing phase (stocking rate 2452 kg BW/ha, herbage mass 4,884 kg dry matter (DM)/ha, forage allowance 5.9 kg DM/100kg BW) and then were finished in a feedlot. Steers (n = 8) from each breed composition were randomly selected in each phase to measure CH4 production using a sulfur hexafluoride (SF6) tracer technique and DM intake (DMI) using titanium dioxide. Compared with NEL, AN had both superior total gain and average daily gain (ADG) in the grazing period. The AN presented greater ADG in the feedlot with a shorter finishing period and resulted in greater carcass yield and carcass ADG. Methane production (kg/period) was lower in NEL (19% less) than AN in grazing (P<0.01), and no difference was observed in feedlot. The NEL had less CH4 intensity (CH4/BW) in grazing but greater CH4 per unit of ADG in the feedlot compared to AN. Breed composition did not influence the CH4 yield (CH4/DMI) in either phase, despite the difference in feedlot DMI (kg/day). In conclusion, crossbreeding may be an option to improve performance and reduce the CH4 per ADG in tropical climate conditions, resulting in lower methane emission per kg of meat produced. 650 $aClima Tropical 650 $aCruzamento Animal 650 $aGado de Corte 650 $aGás 650 $aMetano 650 $aRaça 650 $aSistema de Cultivo 653 $aIntegração lavoura-pecuária 653 $aSistema integrado 700 1 $aBARBOSA, F. A. 700 1 $aTOMICH, T. R. 700 1 $aPEREIRA, L. G. R. 700 1 $aALVARENGA, R. C. 700 1 $aLOPES, L. S. 700 1 $aMALACCO, V. M. R. 700 1 $aROWNTREE, J. E. 700 1 $aTHOMPSON, L. R. 700 1 $aLANA, A. M. Q. 773 $tPlosONE$gv. 14, n. 7, e0220247, July 2019.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
07/11/2003 |
Data da última atualização: |
03/08/2017 |
Tipo da produção científica: |
Folder/Folheto/Cartilha |
Título: |
INIMIGOS naturais da lagarta-do-cartucho na cultura do milho: telenomus remus. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
Sete Lagoas: Embrapa Milho e Sorgo, 2000. |
Descrição Física: |
1 folder. |
Série: |
(Controle biológico,1). |
Idioma: |
Português |
Conteúdo: |
Esse parasitóide é exclusivo de ovos, completando todo o seu ciclo biológico dentro do ovo do hospedeiro. O adulto mede cerca de um milímetro de envergadura, ou seja, é uma vespa diminuta. |
Thesagro: |
Controle biológico. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/32418/1/Inimigos-naturais-1.pdf
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Marc: |
LEADER 00587nam a2200133 a 4500 001 1487352 005 2017-08-03 008 2000 bl uuuu u0uu1 u #d 245 $aINIMIGOS naturais da lagarta-do-cartucho na cultura do milho$btelenomus remus. 260 $aSete Lagoas: Embrapa Milho e Sorgo$c2000 300 $c1 folder. 490 $a(Controle biológico,1). 520 $aEsse parasitóide é exclusivo de ovos, completando todo o seu ciclo biológico dentro do ovo do hospedeiro. O adulto mede cerca de um milímetro de envergadura, ou seja, é uma vespa diminuta. 650 $aControle biológico
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