Effects of sainfoin tannin treated by water or urea on microbial population, gas production parameters, digestibility and in vitro fermentation

This experiment with aim to determine the effect of the tannins in dry land and irrigated sainfoin forage treated by water or urea on gas production (GP) parameters, in vitro fermentation characteristics and microbial population was carried out. Treatments were consist of untreated irrigated sainfoin (UNIS), untreated dry land sainfoin (UNDS), irrigated sainfoin by water (ISTW),dryland sainfoin treated by water (DSTW), irrigated sainfoin treated by urea (ISTU) and dry land sainfoin treated by urea (DSTU). Data of GP method were analyzed by Repeated Measurement and data other analyzed with CRD design. The results showed that treated by water or urea was due to reduce dry matter (DM). The most crude protein (CP) was relation to treated by urea (14.25%). The effect of treated by water or urea had the most decreasing of total phenolic compounds, total and condensed tannin in irrigated sainfoin (P