Perna Junior, F., Furtado, A.J., Botteon, G.E. e Rodrigues, P.H.M. 2026. Technical note: Adaptation of fermentation bottles for in vitro study, use of filter bag and its effect on digestibility and methane production. Acta Scientiarum. Animal Sciences. 48, 1 (mar. 2026), e75364. DOI:https://doi.org/10.4025/actascianimsci.v48i1.75364.