| Registro completo |
| Provedor de dados: |
Ciência Rural
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| País: |
Brazil
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| Título: |
Nutritional diversity of Brachiaria ruziziensis clones
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| Autores: |
Moreira,Ellen de Almeida
Souza,Shirley Motta de
Ferreira,Alexandre Lima
Tomich,Thierry Ribeiro
Azevêdo,José Augusto Gomes
Souza Sobrinho,Fausto de
Benites,Flávio Rodrigo Gandolfi
Machado,Fernanda Samarini
Campos,Mariana Magalhães
Pereira,Luiz Gustavo Ribeiro
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| Data: |
2018-01-01
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| Ano: |
2018
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| Palavras-chave: |
Digestibility
Discriminating variables
Main components
Nutritional value
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| Resumo: |
ABSTRACT: The aim of this study was to evaluate the nutritional diversity of Brachiaria ruziziensis clones through chemical composition and in vitro kinetics of ruminal fermentation. Twenty three clones of Brachiaria ruziziensis were used (15, 16, 46, 174, 411, 590, 651, 670, 768, 776, 844, 859, 950, 965, 970, 975, 1067, 1093, 1296, 1765, 1806, 1894 and 1972) and Brachiaria ruziziensis cv. ‘Kennedy’, Brachiaria brizantha cv. ‘Marandu’ and Brachiaria decumbens cv. ‘Basilisk’ as controls within 27 days of harvesting. The experimental design used randomized blocks with 26 treatments (genotypes) and three replications. Evaluation of the nutritional divergence was performed using principal components analysis, based on the following discriminatory variables: in vitro dry matter digestibility (IVDMD), neutral detergent fiber (NDF), lignin, crude protein (CP), degradation rate of non-fibrous carbohydrates (KdNFC) and degradation rate of fibrous carbohydrates (KdFC). The evaluation of the nutritional diversity of Brachiaria genotypes was based on the two main components (IVDMD and NDF), which explains 96.2% of the total variance Variables of lower contribution to the discrimination of the clones were as degradation rates of the fibrous and non-fibrous carbohydrates. In the agglomerative hierarchical grouping analysis, five distinct groups were identified, where V group, formed by clones 46, 768 and 1067 have higher values of IVDMD compared to the other clones.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000200401
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| Editor: |
Universidade Federal de Santa Maria
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| Relação: |
10.1590/0103-8478cr20160855
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| Formato: |
text/html
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| Fonte: |
Ciência Rural v.48 n.2 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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