Phenolic acids and ruminal parameters of different varieties of sugarcane in natura or ensiled

• Autor(a) principal: Jaime Emerson Laranjeira Spínola
• Data de Publicação: 2017
• Outros Autores: Sidnei Tavares dos Reis, Eleuza Clarete Junqueira de Sales, Flávio Pinto Monção, João Paulo Sampaio Rigueira, Nelson de Abreu Delvaux Júnior
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFMG
• Texto Completo: https://doi.org/10.4025/actascianimsci.v39i1.31470; http://hdl.handle.net/1843/45132
• topic: Digestibilidade; Fermentação; Lignina; Silagem; Valor nutricional; Cana-de-açúcar como ração; Lignina; Silagem; Ácido fenólico

This study aimed to determine and measure the phenolic acids in four varieties of sugarcane (RB 855536, RB 765418, SP 80-1842 and SP 80-1816) as fresh and ensiled, and assess the influence of these acids on in situ degradability of dry matter and neutral detergent fiber. The experimental design was completely randomized in a factorial design. For the fraction of dry matter (DM), varieties RB 855536 and SP 80-1842 had average 17.80% higher compared to others. The SP80-1842 and RB 855536 varieties did not differ (p > 0.05), with an average of DM effective degradability of 33.70%. For silage, the highest levels of p-coumaric acid were found in the variety RB 855536, which was 24.64% higher than the varieties RB 765418 and SP 80-1842 (average 12.75%) and 52.60% of the variety SP 80-1816 (average 8.02%), since for the in natura form, varieties did not differ between each other (p > 0.05), and had an average of 8.86%. Silage variety SP 80-1816 has ferulic acid content 40.82% higher than the other varieties, with an average of 4.63%. The examination of the concentrations of phenolic acids p-coumaric and ferulic are not sufficient to justify the effect of microbial action on the varieties studied in different forms of processing.