Data/hora: 01/06/2024 07:40:41

Provedor de dados: | 65
País: | Brazil
Título: | Nutritional diversity of Brachiaria ruziziensis clones
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.
Data: | 2018-01-01
Ano: | 2018
Palavras-chave: | Digestibility; Discriminating variables; Main components; Nutritional value.
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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000200401
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20160855
Formato: | text/html
Fonte: | Ciência Rural  v.48 n.2 2018
Fonte: | info:eu-repo/semantics/openAccess