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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
16/08/2021 |
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Data da última atualização: |
22/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PACIULLO, D. S. C.; FERNANDES, P. B.; CARVALHO, C. A. B.; MORENZ, M. J. F.; LIMA, M. A.; MAURÍCIO, R. M.; GOMIDE, C. A. de M. |
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Afiliação: |
DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; PRISCILA B. FERNANDES, Universidade Federal Rural do Rio de Janeiro; CARLOS A. B. CARVALHO, Universidade Federal Rural do Rio de Janeiro; MIRTON JOSE FROTA MORENZ, CNPGL; MARINA A. LIMA, Universidade Federal de Viçosa; ROGERIO M. MAURÍCIO, Universidade Federal de São João del-Rei; CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL. |
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Título: |
Pasture and animal production in silvopastoral and open pasture systems managed with crossbred dairy heifers. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Livestock Science, v. 245, 104426, 2021. |
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DOI: |
https://doi.org/10.1016/j.livsci.2021.104426 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate the pasture traits and performance of crossbreed dairy heifers in a silvopastoral system (SPS) and open pasture (OP) of Urochloa decumbens, after 14-years of management. In the SPS, an average reduction of 46% in the photosynthetically active radiation (PAR) was calculated in relation to the OP. Experimental design was a randomized complete block, with three replications and two treatments (SPS and OP), evaluated in two seasons (summer and autumn), during three years. The paddocks were managed under continuous stocking with Holstein × Gyr heifers. The herbage mass was greater in OP, but a greater leaf and lower dead material percentages were observed in the SPS. The OP had higher tiller population than SPS only in the first year. The herbage accumulation was higher in the OP during autumn; however during summer only a trend was observed. The crude protein content was greatest in SPS, while the fiber constituents and forage digestibility did not vary with system. The stocking rate was greater in OP in the second year and similar between systems in the other years. Average daily gains were similar between systems, regardless of season and experimental year, while the OP showed a greater gain per area in the third experimental year. Despite of the difference in some variables, after 14?16 years of establishment, it was observed only a small decrease in the animal productive per area in SPS in the last year, in relation to OP, which indicates a high resilience of SPS, even under intense shading. MenosThe objective of this study was to evaluate the pasture traits and performance of crossbreed dairy heifers in a silvopastoral system (SPS) and open pasture (OP) of Urochloa decumbens, after 14-years of management. In the SPS, an average reduction of 46% in the photosynthetically active radiation (PAR) was calculated in relation to the OP. Experimental design was a randomized complete block, with three replications and two treatments (SPS and OP), evaluated in two seasons (summer and autumn), during three years. The paddocks were managed under continuous stocking with Holstein × Gyr heifers. The herbage mass was greater in OP, but a greater leaf and lower dead material percentages were observed in the SPS. The OP had higher tiller population than SPS only in the first year. The herbage accumulation was higher in the OP during autumn; however during summer only a trend was observed. The crude protein content was greatest in SPS, while the fiber constituents and forage digestibility did not vary with system. The stocking rate was greater in OP in the second year and similar between systems in the other years. Average daily gains were similar between systems, regardless of season and experimental year, while the OP showed a greater gain per area in the third experimental year. Despite of the difference in some variables, after 14?16 years of establishment, it was observed only a small decrease in the animal productive per area in SPS in the last year, in relation to OP, which in... Mostrar Tudo |
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Palavras-Chave: |
Herbage accumulation; Shading; Sistema silvipastoril. |
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Thesagro: |
Agrossilvicultura; Bovino; Gado Leiteiro; Gado Mestiço; Pastagem; Produção Animal; Sombreamento; Valor Nutritivo. |
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Thesaurus Nal: |
Agroforestry; Average daily gain; Nutritive value. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02658naa a2200373 a 4500
001 2133583
005 2021-09-22
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.livsci.2021.104426$2DOI
100 1 $aPACIULLO, D. S. C.
245 $aPasture and animal production in silvopastoral and open pasture systems managed with crossbred dairy heifers.$h[electronic resource]
260 $c2021
520 $aThe objective of this study was to evaluate the pasture traits and performance of crossbreed dairy heifers in a silvopastoral system (SPS) and open pasture (OP) of Urochloa decumbens, after 14-years of management. In the SPS, an average reduction of 46% in the photosynthetically active radiation (PAR) was calculated in relation to the OP. Experimental design was a randomized complete block, with three replications and two treatments (SPS and OP), evaluated in two seasons (summer and autumn), during three years. The paddocks were managed under continuous stocking with Holstein × Gyr heifers. The herbage mass was greater in OP, but a greater leaf and lower dead material percentages were observed in the SPS. The OP had higher tiller population than SPS only in the first year. The herbage accumulation was higher in the OP during autumn; however during summer only a trend was observed. The crude protein content was greatest in SPS, while the fiber constituents and forage digestibility did not vary with system. The stocking rate was greater in OP in the second year and similar between systems in the other years. Average daily gains were similar between systems, regardless of season and experimental year, while the OP showed a greater gain per area in the third experimental year. Despite of the difference in some variables, after 14?16 years of establishment, it was observed only a small decrease in the animal productive per area in SPS in the last year, in relation to OP, which indicates a high resilience of SPS, even under intense shading.
650 $aAgroforestry
650 $aAverage daily gain
650 $aNutritive value
650 $aAgrossilvicultura
650 $aBovino
650 $aGado Leiteiro
650 $aGado Mestiço
650 $aPastagem
650 $aProdução Animal
650 $aSombreamento
650 $aValor Nutritivo
653 $aHerbage accumulation
653 $aShading
653 $aSistema silvipastoril
700 1 $aFERNANDES, P. B.
700 1 $aCARVALHO, C. A. B.
700 1 $aMORENZ, M. J. F.
700 1 $aLIMA, M. A.
700 1 $aMAURÍCIO, R. M.
700 1 $aGOMIDE, C. A. de M.
773 $tLivestock Science$gv. 245, 104426, 2021.
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| 1. |  | SANTOS, J. O.; CARVALHO, G. K. L.; PACHECO, M. G.; COSTA, M. L. E.; MACEDO, A. T.; SA, L. A. N. de; GAMA, F. de C.; PARANHOS, B. A. J. Introdução do parasitoide de ovos Fopius arisanus (Sonan, 1932) (Hymenoptera: Braconidae) no Brasil e sua multiplicação sobre mosca do mediterrâneo. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 25., 2014, Goiânia. Entomologia integrada à sociedade para o desenvolvimento sustentável. Anais... Goiânia: Sociedade Entomológica do Brasil: Embrapa Arroz e Feijão, 2014. Trabalho 1431.| Tipo: Resumo em Anais de Congresso |
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