Degradabilidade In Vitro de Concentrados Contendo Inclusão do Farelo do Mesocarpo do Babaçu em Dietas para Bovinos.

Abstract

The objective of this work was to evaluate the kinetics of rumen fermentation and effective degradability, through the “Hohenheim Gas Test” technique in diets for beef cattle confined with different levels of bran inclusion babassu mesocarp (FMB). Diets containing 0%; 12%; 24%; 36% and 48% inclusion of FMB. The data was analyzed using regression using the model proposed by France and compared using the parallelism and identity of curves. To the extent that FMB was included in the concentrates the effective degradability of MS was reduced (DEMS), as well as there was a reduction in gas production (A). The inclusion of FMB in diets provided increase in the fractional degradation rate (μ), from 0.03252 to 0.047087 indicating the faster degradation of the potentially degradable fraction, there was a decrease in gas production as the FMB was included from 289.417 to 189.256. A inclusion of FMB in a millet-based diet does not change the behavior of degradation, but reduces the volume of gas produced, reducing degradation effective dry matter DM.