Comparison of the in vitro digestion computerized monitoring system with in vivo and in situ methods: 2. Use of the dry matter residue of the forages

[摘要] - The objective of this work was to compare the computerized monitoring of the in vitro gas production system with the in vivo and in situ methods. On the comparisons, corn silage with high/low dry matter contents, with/without inoculation, were used. The digestibility of silage with high dry matter (DM) content, with/without inoculation, did not present differences among the analyzed methods. When evaluated apart from the inoculation effect, that silage differed in vitro/gas and in situ methods; however in vivo did not differ. Nevertheless, when analyzed under the inoculation effect, only in in situ method there was no difference. No differences were found on the silage neutral detergent fiber (NDF) digestibility with high or low DM, inoculated or not, as well as in relation to pH at the end of digestion. In conclusion, the disappearing of DM and NDF determined by the residue of the in vitro/gas system was similar to the others evaluated methods.

[学科分类] 兽医学

[关键词] corn silage;gas production;in situ digestion;in vitro digestion;in vivo digestion     IntroduçãoAs metodologias tradicionais de avaliação nutricional dos alimentos e das necessidades dos animais vêm se complementando com o surgimento de novas técnicas;evoluindo rápido e constantemente