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1. | | COSTA, F. de S.; CAMPOS FILHO, M. D.; SANTIAGO, A. C. C.; MAGALHÃES, I. B.; CORDEIRO, L. da S.; LIMA, A. P. de; MAIA, G. R.; SILVA, E. P.; KLEIN, M. A.; SILVA, F. de A. C.; BARDALES, N. G.; QUEIROZ, L. R.; BRITO, E. de S. Agricultura conservacionista na produção familiar de mandioca e milho no Juruá, Estado do Acre: efeitos da adoção nos resultados de safras de 2006 a 2014. Rio Branco, AC: Embrapa Acre, 2014. 10 p. (Embrapa Acre. Comunicado técnico, 186). Biblioteca(s): Embrapa Acre. |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
29/10/2001 |
Data da última atualização: |
15/04/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
HERRERO, M.; VALLE, C. B. do; HUGHES, N. R. G.; SABATEL, V. de O.; JESSOP, N. S. |
Afiliação: |
Institute of Ecology and Resource Management. University of Edinburgh.; CNPGC; Institute of Ecology and Resource Management. University of Edinburgh.; CNPGC; Institute of Ecology and Resource Management. University of Edinburgh. |
Título: |
Measurements of physical strengh and their relationship to the chemical composition of four species of Brachiaria. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Animal Feed Science and Technology, Amsterdam, v. 92, n. 3/4, p.149-158, Aug. 2001. |
Idioma: |
Inglês |
Conteúdo: |
Shear strength and grinding resistance of leaves of four species of Brachiaria collected a 4 and 6 weeks of re-growth wre determined using modifications of technique described in the literature. Physical attributes of strength were correlated with analyses of plant cell wall constituents and in vitro digestibility (IVDMD). Methodologies were compared to determine which was best able to describe the physical strength of the samples. Both the grinding resistance and the shear strength tchnique were able to detect differences between Brachiaria species and ages of re-growth. However, the shear strength technique was more sensitive for identifying physical strength differences at the species level. Both technique identified the same species (Brachiaria ruziziensis as the softest, but subsequent ranking of species by the shear strength technique depended on the leaf morphological characteristic used to express the results. Shear strength measurements were correlated to the cell wall components and IVDMD of the samples. The highest correlations were obtained for acid detergent fibre (ADF), cellulose and lignin with shear strength measurements expressed per unit of leaf width (kg/cm), per unit of linear density (kg/g cm) and for the raw shear strength data (kg). Grinding resistance was not correlated to the chemical composition and IVDMD of the samples.Preferential use of the shear strength technique is suggested since it provides a sensitive measure of the physical strength of forage leaf tissue and is a suitabel indicator for identifying nutrititive quality differences between Brachiaria species. MenosShear strength and grinding resistance of leaves of four species of Brachiaria collected a 4 and 6 weeks of re-growth wre determined using modifications of technique described in the literature. Physical attributes of strength were correlated with analyses of plant cell wall constituents and in vitro digestibility (IVDMD). Methodologies were compared to determine which was best able to describe the physical strength of the samples. Both the grinding resistance and the shear strength tchnique were able to detect differences between Brachiaria species and ages of re-growth. However, the shear strength technique was more sensitive for identifying physical strength differences at the species level. Both technique identified the same species (Brachiaria ruziziensis as the softest, but subsequent ranking of species by the shear strength technique depended on the leaf morphological characteristic used to express the results. Shear strength measurements were correlated to the cell wall components and IVDMD of the samples. The highest correlations were obtained for acid detergent fibre (ADF), cellulose and lignin with shear strength measurements expressed per unit of leaf width (kg/cm), per unit of linear density (kg/g cm) and for the raw shear strength data (kg). Grinding resistance was not correlated to the chemical composition and IVDMD of the samples.Preferential use of the shear strength technique is suggested since it provides a sensitive measure of the physical strength of for... Mostrar Tudo |
Thesagro: |
Brachiaria Brizantha; Brachiaria Decumbens; Brachiaria Ruziziensis; Composição Química; Moagem. |
Thesaurus NAL: |
chemical composition; cutting; milling. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02448naa a2200265 a 4500 001 1324242 005 2020-04-15 008 2001 bl uuuu u00u1 u #d 100 1 $aHERRERO, M. 245 $aMeasurements of physical strengh and their relationship to the chemical composition of four species of Brachiaria.$h[electronic resource] 260 $c2001 520 $aShear strength and grinding resistance of leaves of four species of Brachiaria collected a 4 and 6 weeks of re-growth wre determined using modifications of technique described in the literature. Physical attributes of strength were correlated with analyses of plant cell wall constituents and in vitro digestibility (IVDMD). Methodologies were compared to determine which was best able to describe the physical strength of the samples. Both the grinding resistance and the shear strength tchnique were able to detect differences between Brachiaria species and ages of re-growth. However, the shear strength technique was more sensitive for identifying physical strength differences at the species level. Both technique identified the same species (Brachiaria ruziziensis as the softest, but subsequent ranking of species by the shear strength technique depended on the leaf morphological characteristic used to express the results. Shear strength measurements were correlated to the cell wall components and IVDMD of the samples. The highest correlations were obtained for acid detergent fibre (ADF), cellulose and lignin with shear strength measurements expressed per unit of leaf width (kg/cm), per unit of linear density (kg/g cm) and for the raw shear strength data (kg). Grinding resistance was not correlated to the chemical composition and IVDMD of the samples.Preferential use of the shear strength technique is suggested since it provides a sensitive measure of the physical strength of forage leaf tissue and is a suitabel indicator for identifying nutrititive quality differences between Brachiaria species. 650 $achemical composition 650 $acutting 650 $amilling 650 $aBrachiaria Brizantha 650 $aBrachiaria Decumbens 650 $aBrachiaria Ruziziensis 650 $aComposição Química 650 $aMoagem 700 1 $aVALLE, C. B. do 700 1 $aHUGHES, N. R. G. 700 1 $aSABATEL, V. de O. 700 1 $aJESSOP, N. S. 773 $tAnimal Feed Science and Technology, Amsterdam$gv. 92, n. 3/4, p.149-158, Aug. 2001.
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