Correlations were estimated to find out the relationship of different levels of tannins with IVDMD, IVOMD, IVCPD and IVGP. Regression analysis was used to estimate the effect of different tannin levels on IVDMD, IVOMD, IVCPD and IVGP.
Tannin concentration was negatively correlated with IVDMD, IVOMD, IVCPD and IVGP and IVDMD, IVOMD and IVCPD were positively correlated with IVGP (Table 5).
Decreased (p<0.05) digestibility of other nutrients was observed with increased level of tannin which was reflected through decreased (p<0.05) IVGP (ml/g) during the first 24 h (Table 4).