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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
19/11/1998 |
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Data da última atualização: |
07/08/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SIGNORETTI, R. D.; SILVA, J. F. C. da; VALADARES FILHO, S. de C.; ARAUJO, G. G. L. de; PEREIRA, J. C.; CECON, P. R.; QUEIROZ, A. C. de. |
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Afiliação: |
GHERMAN GARCIA LEAL DE ARAUJO, CPATSA. |
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Título: |
Crescimento, conversão alimentar e rendimento de carcaça de bezerros holandeses em confinamento. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu, SP. Anais... Botucatu: SBZ, 1998. |
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Páginas: |
v. 1, p. 428-430. |
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Idioma: |
Português |
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Conteúdo: |
Foram utilizados 36 bezerros Holandeses, nao-castrados, com idade media de 60 dias e peso vivo inicial de 78 kg, em delineamento inteiramente casualizado, para avaliar o efeito dos diferentes niveis de volumoso das dietas sobre o desempenho animal. Houve efeito linear crescence para conversao alimentar expressa em peso vivo (PV) e peso corporal vazio (PCV), enquanto os ganhos de peso medio expressos em PV e PCVZ decresceram linearmente e o consumo de MS nao foi influenciado com aumento de volumoso nas dietas. O peso da carcaca quente e o seu rendimento para os animais do grupo de 300 Kg nao foram afetados, enquanto o rendimento de carcaca quente do grupo de 190 kg decresceu linearmente com aumento de volumoso nas dietas. Conclui-se que o desempenho dos bezerros de ambos os grupos de abate foi maior com utilizacao de menores niveis de volumoso. |
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Palavras-Chave: |
Bezerro Holandes; Conservacao alimentar; Desempenho; Forage level; Holstein calf. |
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Thesagro: |
Confinamento; Feno. |
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Thesaurus Nal: |
feed intake; feedlots. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/196516/1/Reuniao-de-zootecnia-pag-428-430.pdf
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Marc: |
LEADER 01771nam a2200301 a 4500
001 1133200
005 2019-08-07
008 1998 bl uuuu u00u1 u #d
100 1 $aSIGNORETTI, R. D.
245 $aCrescimento, conversão alimentar e rendimento de carcaça de bezerros holandeses em confinamento.
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu, SP. Anais... Botucatu: SBZ$c1998
300 $av. 1, p. 428-430.
520 $aForam utilizados 36 bezerros Holandeses, nao-castrados, com idade media de 60 dias e peso vivo inicial de 78 kg, em delineamento inteiramente casualizado, para avaliar o efeito dos diferentes niveis de volumoso das dietas sobre o desempenho animal. Houve efeito linear crescence para conversao alimentar expressa em peso vivo (PV) e peso corporal vazio (PCV), enquanto os ganhos de peso medio expressos em PV e PCVZ decresceram linearmente e o consumo de MS nao foi influenciado com aumento de volumoso nas dietas. O peso da carcaca quente e o seu rendimento para os animais do grupo de 300 Kg nao foram afetados, enquanto o rendimento de carcaca quente do grupo de 190 kg decresceu linearmente com aumento de volumoso nas dietas. Conclui-se que o desempenho dos bezerros de ambos os grupos de abate foi maior com utilizacao de menores niveis de volumoso.
650 $afeed intake
650 $afeedlots
650 $aConfinamento
650 $aFeno
653 $aBezerro Holandes
653 $aConservacao alimentar
653 $aDesempenho
653 $aForage level
653 $aHolstein calf
700 1 $aSILVA, J. F. C. da
700 1 $aVALADARES FILHO, S. de C.
700 1 $aARAUJO, G. G. L. de
700 1 $aPEREIRA, J. C.
700 1 $aCECON, P. R.
700 1 $aQUEIROZ, A. C. de
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Registro original: |
Embrapa Semiárido (CPATSA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
07/12/2015 |
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Data da última atualização: |
12/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BAYER, C.; GOMES, J.; ZANATTA, J. A.; VIEIRA, F. C. B.; PICCOLO, M. de C.; DIECKOW, J.; SIX, J. |
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Afiliação: |
CIMÉLIO BAYER, Universidade Federal do Rio Grande do Sul; JULIANA GOMES, Universidade Federal do Rio Grande do Sul; JOSILEIA ACORDI ZANATTA, CNPF; FREDERICO COSTA BEBER VIEIRA, Universidade Federal do Rio Grande do Sul; MARISA DE CÁSSIA PICCOLO, Universidade de São Paulo; JEFERSON DIECKOW, Universidade Federal do Paraná; JOHAN SIX, University of California. |
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Título: |
Soil nitrous oxide emissions as affected by long-term tillage, cropping systems and nitrogen fertilization in Southern Brazil. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Soil & Tillage Research, Amsterdam, v. 146, p. 213-222, 2015. |
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DOI: |
http://dx.doi.org/10.1016/j.still.2014.10.011 |
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Idioma: |
Inglês |
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Conteúdo: |
Soil nitrous oxide (N2O) emissions are affected by management practices, but little information is available on the interactive effects of tillage, cropping systems and N sources in tropical and subtropical soils. In an 18-yr old experiment located in a subtropical Acrisol of Southern Brazil we conducted a sequence of two trials. The 1-year trial (October 2003?2004) was set to evaluate the long-term effects of tillage [CT: conventional; and NT: no-tillage] and cropping systems [O/M: black oat (Avena strigosa Schreb.)/maize (Zea mays L.); and V/M: vetch (Vicia sativa L.)/maize] on soil N2O emissions, either in the post-management period (45 days after desiccation and knife-rolling of winter cover crops) or in the whole year. The second and short-term trial (October?November 2004) was carried out to compare the impact of N sources [urea (mineral) and legume-residue of vetch (biologically fixed), both at 180 kg N ha?1] on soil N2O emissions during 53 days after cover-crop management. Air sampling was carried out by static chambers and N2O analysis by gas chromatography. In the 45-day post-management period of the 1-year trial, soil N2O emissions were practically not affected by tillage systems, but increased 4 times due to vetch residues (average of 0.40 ± 0.08 kg N ha?1 in V/M versus 0.10 ± 0.05 kg N ha?1 in O/M) and related with soil contents of NO3?-N, NH4+-N, and dissolved organic C (DOC). Over the whole year, soil N2O emissions under CT were similar for grass- and legume-based cropping systems and averaged 0.43 ± 0.17 kg N ha?1, while NT exacerbated N2O emissions in the legume-based cropping system (0.80 ± 0.07 kg N ha?1 in V/M versus ?0.07 ± 0.06 kg N ha?1 in O/M). Maize yield was not affected by tillage, but increased from 2.32 Mg ha?1 in O/M to 4.44 Mg ha?1 in V/M. Yield-scaled N2O emissions varied from ?33 g N2O-N Mg?1 grain in NT O/M to 179 g N2O-N Mg?1 grain in NT V/M, and were intermediate in CT soil (106 and 156 g N2O-N Mg?1grain in V/M and O/M cropping systems, respectively). In the short-term trial, the N2O emitted in excess relative to the control treatment (O/M without N fertilizer) was at least 3 times greater with urea-N (0.44% of applied N) than with legume-residue-Nsource (0.13% of applied N). Yield-scaled N2O emission after vetch residues management (67 g N Mg?1 grain) was half of that after urea-N application (152 g N Mg?1 grain). Partially supplying the maize N requirements with winter legume cover-crops may be a feasible strategy to mitigate soil N2O emissions in the subtropical conservation agriculture. MenosSoil nitrous oxide (N2O) emissions are affected by management practices, but little information is available on the interactive effects of tillage, cropping systems and N sources in tropical and subtropical soils. In an 18-yr old experiment located in a subtropical Acrisol of Southern Brazil we conducted a sequence of two trials. The 1-year trial (October 2003?2004) was set to evaluate the long-term effects of tillage [CT: conventional; and NT: no-tillage] and cropping systems [O/M: black oat (Avena strigosa Schreb.)/maize (Zea mays L.); and V/M: vetch (Vicia sativa L.)/maize] on soil N2O emissions, either in the post-management period (45 days after desiccation and knife-rolling of winter cover crops) or in the whole year. The second and short-term trial (October?November 2004) was carried out to compare the impact of N sources [urea (mineral) and legume-residue of vetch (biologically fixed), both at 180 kg N ha?1] on soil N2O emissions during 53 days after cover-crop management. Air sampling was carried out by static chambers and N2O analysis by gas chromatography. In the 45-day post-management period of the 1-year trial, soil N2O emissions were practically not affected by tillage systems, but increased 4 times due to vetch residues (average of 0.40 ± 0.08 kg N ha?1 in V/M versus 0.10 ± 0.05 kg N ha?1 in O/M) and related with soil contents of NO3?-N, NH4+-N, and dissolved organic C (DOC). Over the whole year, soil N2O emissions under CT were similar for grass- and legume-b... Mostrar Tudo |
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Palavras-Chave: |
Conservation agriculture; Cover-crops; N2O. |
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Thesaurus NAL: |
no-tillage; urea. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03386naa a2200265 a 4500
001 2030866
005 2016-02-12
008 2015 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.still.2014.10.011$2DOI
100 1 $aBAYER, C.
245 $aSoil nitrous oxide emissions as affected by long-term tillage, cropping systems and nitrogen fertilization in Southern Brazil.$h[electronic resource]
260 $c2015
520 $aSoil nitrous oxide (N2O) emissions are affected by management practices, but little information is available on the interactive effects of tillage, cropping systems and N sources in tropical and subtropical soils. In an 18-yr old experiment located in a subtropical Acrisol of Southern Brazil we conducted a sequence of two trials. The 1-year trial (October 2003?2004) was set to evaluate the long-term effects of tillage [CT: conventional; and NT: no-tillage] and cropping systems [O/M: black oat (Avena strigosa Schreb.)/maize (Zea mays L.); and V/M: vetch (Vicia sativa L.)/maize] on soil N2O emissions, either in the post-management period (45 days after desiccation and knife-rolling of winter cover crops) or in the whole year. The second and short-term trial (October?November 2004) was carried out to compare the impact of N sources [urea (mineral) and legume-residue of vetch (biologically fixed), both at 180 kg N ha?1] on soil N2O emissions during 53 days after cover-crop management. Air sampling was carried out by static chambers and N2O analysis by gas chromatography. In the 45-day post-management period of the 1-year trial, soil N2O emissions were practically not affected by tillage systems, but increased 4 times due to vetch residues (average of 0.40 ± 0.08 kg N ha?1 in V/M versus 0.10 ± 0.05 kg N ha?1 in O/M) and related with soil contents of NO3?-N, NH4+-N, and dissolved organic C (DOC). Over the whole year, soil N2O emissions under CT were similar for grass- and legume-based cropping systems and averaged 0.43 ± 0.17 kg N ha?1, while NT exacerbated N2O emissions in the legume-based cropping system (0.80 ± 0.07 kg N ha?1 in V/M versus ?0.07 ± 0.06 kg N ha?1 in O/M). Maize yield was not affected by tillage, but increased from 2.32 Mg ha?1 in O/M to 4.44 Mg ha?1 in V/M. Yield-scaled N2O emissions varied from ?33 g N2O-N Mg?1 grain in NT O/M to 179 g N2O-N Mg?1 grain in NT V/M, and were intermediate in CT soil (106 and 156 g N2O-N Mg?1grain in V/M and O/M cropping systems, respectively). In the short-term trial, the N2O emitted in excess relative to the control treatment (O/M without N fertilizer) was at least 3 times greater with urea-N (0.44% of applied N) than with legume-residue-Nsource (0.13% of applied N). Yield-scaled N2O emission after vetch residues management (67 g N Mg?1 grain) was half of that after urea-N application (152 g N Mg?1 grain). Partially supplying the maize N requirements with winter legume cover-crops may be a feasible strategy to mitigate soil N2O emissions in the subtropical conservation agriculture.
650 $ano-tillage
650 $aurea
653 $aConservation agriculture
653 $aCover-crops
653 $aN2O
700 1 $aGOMES, J.
700 1 $aZANATTA, J. A.
700 1 $aVIEIRA, F. C. B.
700 1 $aPICCOLO, M. de C.
700 1 $aDIECKOW, J.
700 1 $aSIX, J.
773 $tSoil & Tillage Research, Amsterdam$gv. 146, p. 213-222, 2015.
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