| dc.description.abstract | In vitro organic matter disappearance (IVOMD) of African browse species often indicates
artificially low nutritive value due to the presence of condensed tannins (CT). Diet of the
rumen liquor donor may change this if it contains CT. Leaves from 11 browse species were
evaluated for their IVOMD of nitrogen, fibre fractions and CT concentrations. Crude protein
(CP) ranged from 14% to 25%, whereas neutral detergent fibre (NDF) varied from 20% to
40%. The CT fractions differed (P≤ 0.05) among the browse species with most CT either
soluble or bound to protein. Acacia brevispica and Berchemia discolor had the greatest
concentrations of total CT, whereas Balanites aegyptiaca and Prosopis juliflora had the
least. Rumen liquid from goats on grass diet (no CT) or browsing species with CT resulted in
differences in IVOMD of NDF (P≤ 0.05); 37% less (P= 0.11) fibre-bound CT IVOMD … | en_US |
