Indigestible Cellulose and Lignin in Determining Feces Production and Apparent Digestibility in Horses - Doi: 10.4025 actascianimsci.V34i3.10577. Acta Sci. Anim. Sci. 2012, 34 (3), 267-272. https://doi.org/10.4025/actascianimsci.v34i3.10577.