The experiment was conducted to determine effects of different dietary cation-anion difference（DCAD） in diets on ruminal fluid pH and fiber degradation in rumen of Laoshan dairy goats. A 4×4 latin square design...The experiment was conducted to determine effects of different dietary cation-anion difference（DCAD） in diets on ruminal fluid pH and fiber degradation in rumen of Laoshan dairy goats. A 4×4 latin square design was adopted. DCAD in different groups was 0, 50, 100, 200 mEq·kg^-1 of DM, respectively. The results of ruminal pH indicated that different DCAD could significantly influence the ruminal pH （P〈0.05） and ruminal fluid pH increased as DCAD increased from 0 to 200 mEq·kg^-1 of DM at different sampling time-points. There was no effect of DCAD on carboxymethyl cellulase in ruminal fluid at 4 h and 8 h postfeeding （P〉0.05）. Degradation ofNDF, ADF, CF peaked at a DCAD of 100 mEq·kg^-1 of DM. It could be concluded that DCAD of 100 mEq·kg^-1 of DM was advantage to non-pregnancy, non-lactication Laoshan dairy goat.展开更多
基金Supported by Grant of Qingdao Agricultural University
文摘The experiment was conducted to determine effects of different dietary cation-anion difference（DCAD） in diets on ruminal fluid pH and fiber degradation in rumen of Laoshan dairy goats. A 4×4 latin square design was adopted. DCAD in different groups was 0, 50, 100, 200 mEq·kg^-1 of DM, respectively. The results of ruminal pH indicated that different DCAD could significantly influence the ruminal pH （P〈0.05） and ruminal fluid pH increased as DCAD increased from 0 to 200 mEq·kg^-1 of DM at different sampling time-points. There was no effect of DCAD on carboxymethyl cellulase in ruminal fluid at 4 h and 8 h postfeeding （P〉0.05）. Degradation ofNDF, ADF, CF peaked at a DCAD of 100 mEq·kg^-1 of DM. It could be concluded that DCAD of 100 mEq·kg^-1 of DM was advantage to non-pregnancy, non-lactication Laoshan dairy goat.
