Intake and digestibility of Acacia glomerosa and Leucaena leucocephala mixed with ammoniated rice straw in rations for growing goats

Abstract

Intake and digestibility of Acacia glomerosa (A) and Leucaena leucocephala (L), mixed with ammoniated rice straw (ARS) and maize by-product flour (CB) was evaluated for growing goats. Eight goats were used (21 kg average liveweight). A factorial arrangement 2x2, in Latin square design was conducted. The factors were 2 vegetal species and 2 inclusion levels. The study was conducted in 56 days. The cell wall intake (NDF) was superior for A vs L (652.13 vs 535.3 g/goat/day). Digestibility of organic matter (OM) was superior for A vs L (79.83 vs 71.37%). The same occurred with: NDF (83.19 vs 76.85%) and acid detergent fibre (ADF) (81.82 vs 67.39%). Higher intake of dry matter (DM) occurred at the smallest inclusion level (18.75%). Further, the low inclusion level showed higher digestibility of DM, OM, NDF and ADF than the high inclusion level.