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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
23/10/2023 |
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Data da última atualização: |
23/10/2023 |
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Tipo da produção científica: |
Orientação de Tese de Pós-Graduação |
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Autoria: |
TRETTEL, M. |
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Afiliação: |
MURILO TRETTEL, Universidade de São Paulo. |
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Título: |
Deferred grazing and supplementation with ammonium nitrate as strategy for greenhouse gas emissions mitigation. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Dissertação (Mestrado em Ciência Animal) - Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, 2022. |
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Páginas: |
62 f. |
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Idioma: |
Inglês |
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Notas: |
Orientação: Paulo Henrique Mazza Rodrigues.
Co-orientação: Patrícia Perondi Anchão de Oliveira, Embrapa Pecuária Sudeste. |
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Conteúdo: |
This experiment evaluated the effects of appropriate pasture management practices and proteic supplementation as strategies to reduce the greenhouse gases emission. 24 Nellore heifers (372 kg in BW and ± 15 months old), 6 animals per treatment, were used. In each treatment, four heifers were used for methane production measurement (SF6 tracer gas technique), and all of them for performance evaluation. The animals were randomly allotted to 8 paddocks in randomized block (terrain location) design during a year (total of three replicates). Treatments were composed by two grazing systems and two nutritional supplement (2x2 factorial): 1) deferred grazing and urea supplementation (DfG+UR), 2) deferred grazing and ammonium nitrate supplementation (DfG+AN), 3) non-deferred grazing and urea supplementation (NDG+UR), and 4) non-deferred grazing and ammonium nitrate supplementation (NDG+AN). The supplements were isoproteic and left at will to the animals. The analyzes were carried on animals performance, supplement intake and GHG emission. Animals showed a difference in methane/animal.day emission between seasons, due to their growth. Regarding the emission of methane/daily weight gain, there was a lower emission for animals in the deferred system in winter. The animals presented methane emission/Gross Energy intake and methane emission / DMI with triple interaction, and in both cases the highest emission was for animals in rotated supplemented with urea during spring, while the gross energy amount spent in methane emissions (Ym%) was higher in animals during spring. This results shows feasibility in intensification of production systems as a reduction in methane emissions per meat produced. MenosThis experiment evaluated the effects of appropriate pasture management practices and proteic supplementation as strategies to reduce the greenhouse gases emission. 24 Nellore heifers (372 kg in BW and ± 15 months old), 6 animals per treatment, were used. In each treatment, four heifers were used for methane production measurement (SF6 tracer gas technique), and all of them for performance evaluation. The animals were randomly allotted to 8 paddocks in randomized block (terrain location) design during a year (total of three replicates). Treatments were composed by two grazing systems and two nutritional supplement (2x2 factorial): 1) deferred grazing and urea supplementation (DfG+UR), 2) deferred grazing and ammonium nitrate supplementation (DfG+AN), 3) non-deferred grazing and urea supplementation (NDG+UR), and 4) non-deferred grazing and ammonium nitrate supplementation (NDG+AN). The supplements were isoproteic and left at will to the animals. The analyzes were carried on animals performance, supplement intake and GHG emission. Animals showed a difference in methane/animal.day emission between seasons, due to their growth. Regarding the emission of methane/daily weight gain, there was a lower emission for animals in the deferred system in winter. The animals presented methane emission/Gross Energy intake and methane emission / DMI with triple interaction, and in both cases the highest emission was for animals in rotated supplemented with urea during spring, while the gross... Mostrar Tudo |
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Palavras-Chave: |
Bovino de corte; Manejo de pastagem; Proteinado. |
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Thesagro: |
Metano. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1157424/1/Dissertacao-Murilo-Trettel.pdf
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Marc: |
LEADER 02472nam a2200181 a 4500
001 2157424
005 2023-10-23
008 2022 bl uuuu m 00u1 u #d
100 1 $aTRETTEL, M.
245 $aDeferred grazing and supplementation with ammonium nitrate as strategy for greenhouse gas emissions mitigation.$h[electronic resource]
260 $aDissertação (Mestrado em Ciência Animal) - Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga$c2022
300 $a62 f.
500 $aOrientação: Paulo Henrique Mazza Rodrigues. Co-orientação: Patrícia Perondi Anchão de Oliveira, Embrapa Pecuária Sudeste.
520 $aThis experiment evaluated the effects of appropriate pasture management practices and proteic supplementation as strategies to reduce the greenhouse gases emission. 24 Nellore heifers (372 kg in BW and ± 15 months old), 6 animals per treatment, were used. In each treatment, four heifers were used for methane production measurement (SF6 tracer gas technique), and all of them for performance evaluation. The animals were randomly allotted to 8 paddocks in randomized block (terrain location) design during a year (total of three replicates). Treatments were composed by two grazing systems and two nutritional supplement (2x2 factorial): 1) deferred grazing and urea supplementation (DfG+UR), 2) deferred grazing and ammonium nitrate supplementation (DfG+AN), 3) non-deferred grazing and urea supplementation (NDG+UR), and 4) non-deferred grazing and ammonium nitrate supplementation (NDG+AN). The supplements were isoproteic and left at will to the animals. The analyzes were carried on animals performance, supplement intake and GHG emission. Animals showed a difference in methane/animal.day emission between seasons, due to their growth. Regarding the emission of methane/daily weight gain, there was a lower emission for animals in the deferred system in winter. The animals presented methane emission/Gross Energy intake and methane emission / DMI with triple interaction, and in both cases the highest emission was for animals in rotated supplemented with urea during spring, while the gross energy amount spent in methane emissions (Ym%) was higher in animals during spring. This results shows feasibility in intensification of production systems as a reduction in methane emissions per meat produced.
650 $aMetano
653 $aBovino de corte
653 $aManejo de pastagem
653 $aProteinado
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio-Norte. Para informações adicionais entre em contato com cpamn.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
25/02/2002 |
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Data da última atualização: |
25/02/2002 |
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Autoria: |
CARVALHO, H. W. L. de; LEAL, M. de L. da S.; CARDOSO, M. J.; SANTOS, M. X. dos S.; TABOSA, J. N.; CARVALHO, B. C. L. de; ALBUQUERQUE, M. M.; SANTOS, D. M. dos. |
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Título: |
Adaptabilidade e estabilidade de cultivares de milho no Nordeste brasileiro no ano agricola de 1998/99. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Agrotropica, v. 12, n. 1, p. 21-28, 2000. |
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Idioma: |
Português |
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Conteúdo: |
Vinte cultivares de milho foram avaliadas em dezessete ambientes do Nordeste brasileiro, no ano agricola de 1998/99, em blocos ao acaso, com tres repeticoes, visando conhecer a adaptabilidade e a estabilidade desses materiais para fins de recomendacao. |
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Palavras-Chave: |
Interacao genotipo x ambiente. |
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Thesagro: |
Milho; Variedade; Zea Mays. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00989naa a2200253 a 4500
001 1063758
005 2002-02-25
008 2000 bl uuuu u00u1 u #d
100 1 $aCARVALHO, H. W. L. de
245 $aAdaptabilidade e estabilidade de cultivares de milho no Nordeste brasileiro no ano agricola de 1998/99.
260 $c2000
520 $aVinte cultivares de milho foram avaliadas em dezessete ambientes do Nordeste brasileiro, no ano agricola de 1998/99, em blocos ao acaso, com tres repeticoes, visando conhecer a adaptabilidade e a estabilidade desses materiais para fins de recomendacao.
650 $aMilho
650 $aVariedade
650 $aZea Mays
653 $aInteracao genotipo x ambiente
700 1 $aLEAL, M. de L. da S.
700 1 $aCARDOSO, M. J.
700 1 $aSANTOS, M. X. dos S.
700 1 $aTABOSA, J. N.
700 1 $aCARVALHO, B. C. L. de
700 1 $aALBUQUERQUE, M. M.
700 1 $aSANTOS, D. M. dos
773 $tAgrotropica$gv. 12, n. 1, p. 21-28, 2000.
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