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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
11/08/2021 |
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Data da última atualização: |
07/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LOPES, F. C. F.; MORENZ, M. J. F.; LEDO, F. J. da S.; CARNEIRO, J. da C.; PACIULLO, D. S. C.; ANDRADE, P. J. M.; MORAES, C. T. de. |
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Afiliação: |
FERNANDO CESAR FERRAZ LOPES, CNPGL; MIRTON JOSE FROTA MORENZ, CNPGL; FRANCISCO JOSE DA SILVA LEDO, CNPGL; JAILTON DA COSTA CARNEIRO, CNPGL; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; PAULINO JOSE MELO ANDRADE, CNPGL; CONRADO TRIGO DE MORAES, Universidade Federal de Viçosa. |
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Título: |
Chemical composition and fatty acid profile of BRS Capiaçu ensiled at different regrowth ages. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 42, n. 3, p. 1981-2004, 2021. |
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DOI: |
https://doi.org/10.5433/1679-0359.2021v42n3Supl1p1981 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to evaluate the chemical composition and fatty acid (FA) profile of chopped forage and silage of BRS Capiaçu elephant grass at four regrowth ages: 50, 70, 90 and 110 days. A randomized block design with five replications was used. The ensiling was carried out manually in experimental silos without wilting using no additives or bacterial inoculants. The results were analyzed using mixed models (P < 0.05). The model included treatment (regrowth age) as a fixed effect and block as a random effect. Linear and quadratic effects of the treatments were analyzed using orthogonal contrasts. There were linear increases in the dry matter (DM, g kg-1) and lignin (g kg-1 DM) contents and linear reductions in the in vitro DM digestibility (g kg-1) of chopped grass and silage as a function of regrowth age (P < 0.001). Quadratic effects (P ? 0.01) were observed for the chopped grass contents (g kg-1 DM) of crude protein (CP), ether extract (EE) and neutral detergent fiber (NDF) as a function of regrowth age. There were linear decreases (P < 0.0001) in the CP content (g kg-1 DM) and pH and linear increases (P < 0.001) in the EE and NDF contents (g kg-1 DM) in the silage as a function of regrowth age. There were linear decreases (P < 0.01) in the chopped grass contents and linear increases (P < 0.05) in the silage contents of total FAs, linoleic and ?-linolenic acids (g kg-1 DM) as a function of regrowth age. BRS Capiaçu elephant grass must be harvested at up to 70 days of regrowth to obtain forage with good nutritional value and the highest levels of linoleic and ?-linolenic acids (g kg-1 DM). To produce silages with adequate pH values and the highest levels of linoleic and ?-linolenic acids (g kg-1 DM), BRS Capiaçu must be harvested between 90 and 110 days of regrowth. MenosThis study aimed to evaluate the chemical composition and fatty acid (FA) profile of chopped forage and silage of BRS Capiaçu elephant grass at four regrowth ages: 50, 70, 90 and 110 days. A randomized block design with five replications was used. The ensiling was carried out manually in experimental silos without wilting using no additives or bacterial inoculants. The results were analyzed using mixed models (P < 0.05). The model included treatment (regrowth age) as a fixed effect and block as a random effect. Linear and quadratic effects of the treatments were analyzed using orthogonal contrasts. There were linear increases in the dry matter (DM, g kg-1) and lignin (g kg-1 DM) contents and linear reductions in the in vitro DM digestibility (g kg-1) of chopped grass and silage as a function of regrowth age (P < 0.001). Quadratic effects (P ? 0.01) were observed for the chopped grass contents (g kg-1 DM) of crude protein (CP), ether extract (EE) and neutral detergent fiber (NDF) as a function of regrowth age. There were linear decreases (P < 0.0001) in the CP content (g kg-1 DM) and pH and linear increases (P < 0.001) in the EE and NDF contents (g kg-1 DM) in the silage as a function of regrowth age. There were linear decreases (P < 0.01) in the chopped grass contents and linear increases (P < 0.05) in the silage contents of total FAs, linoleic and ?-linolenic acids (g kg-1 DM) as a function of regrowth age. BRS Capiaçu elephant grass must be harvested at up to 70 days of re... Mostrar Tudo |
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Palavras-Chave: |
Ácido linolênico. |
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Thesagro: |
Ácido Linoléico; Gramínea Tropical; Pennisetum Purpureum; Silagem. |
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Thesaurus Nal: |
Linoleic acid; Linolenic acid; Silage; Tropical grasslands. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225047/1/Chemical-composition.pdf
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Marc: |
LEADER 02784naa a2200313 a 4500
001 2133444
005 2021-10-07
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.5433/1679-0359.2021v42n3Supl1p1981$2DOI
100 1 $aLOPES, F. C. F.
245 $aChemical composition and fatty acid profile of BRS Capiaçu ensiled at different regrowth ages.$h[electronic resource]
260 $c2021
520 $aThis study aimed to evaluate the chemical composition and fatty acid (FA) profile of chopped forage and silage of BRS Capiaçu elephant grass at four regrowth ages: 50, 70, 90 and 110 days. A randomized block design with five replications was used. The ensiling was carried out manually in experimental silos without wilting using no additives or bacterial inoculants. The results were analyzed using mixed models (P < 0.05). The model included treatment (regrowth age) as a fixed effect and block as a random effect. Linear and quadratic effects of the treatments were analyzed using orthogonal contrasts. There were linear increases in the dry matter (DM, g kg-1) and lignin (g kg-1 DM) contents and linear reductions in the in vitro DM digestibility (g kg-1) of chopped grass and silage as a function of regrowth age (P < 0.001). Quadratic effects (P ? 0.01) were observed for the chopped grass contents (g kg-1 DM) of crude protein (CP), ether extract (EE) and neutral detergent fiber (NDF) as a function of regrowth age. There were linear decreases (P < 0.0001) in the CP content (g kg-1 DM) and pH and linear increases (P < 0.001) in the EE and NDF contents (g kg-1 DM) in the silage as a function of regrowth age. There were linear decreases (P < 0.01) in the chopped grass contents and linear increases (P < 0.05) in the silage contents of total FAs, linoleic and ?-linolenic acids (g kg-1 DM) as a function of regrowth age. BRS Capiaçu elephant grass must be harvested at up to 70 days of regrowth to obtain forage with good nutritional value and the highest levels of linoleic and ?-linolenic acids (g kg-1 DM). To produce silages with adequate pH values and the highest levels of linoleic and ?-linolenic acids (g kg-1 DM), BRS Capiaçu must be harvested between 90 and 110 days of regrowth.
650 $aLinoleic acid
650 $aLinolenic acid
650 $aSilage
650 $aTropical grasslands
650 $aÁcido Linoléico
650 $aGramínea Tropical
650 $aPennisetum Purpureum
650 $aSilagem
653 $aÁcido linolênico
700 1 $aMORENZ, M. J. F.
700 1 $aLEDO, F. J. da S.
700 1 $aCARNEIRO, J. da C.
700 1 $aPACIULLO, D. S. C.
700 1 $aANDRADE, P. J. M.
700 1 $aMORAES, C. T. de
773 $tSemina: Ciências Agrárias$gv. 42, n. 3, p. 1981-2004, 2021.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 395 | |
| 15. |  | LOPES, F. C. F.; AROEIRA, L. J. M.; DERESZ, F.; NASCIMENTO, J. L. Concentração de amônia no rúmen de vacas mestiças holandês-zebu, em pastagem de capim-elefante (Pennisetum purpureum, Schum.) na estação das chuvas. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 50, n. 3, p. 341-343, 1998.| Biblioteca(s): Embrapa Gado de Leite. |
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| 20. | | LOPES, F. C. F.; AROEIRA, L. J. M.; DAYRELL, M. S.; VERNEQUE, R. S. Digestibilidade e degradabilidade do capim elefante (Pennisetum purpureum, Schum.) picado, em vacas holandes x zebu. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 34., 1997, Juiz de Fora. Anais... Juiz de Fora: SBZ, 1997. p.249-251. v.1| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 395 | |
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