This study was conducted to investigate the effect of difructose anhydride (DFA) III on dry matter intake in multiparous cows immediately after calving. Seventy-four transition multiparous Holstein cows were allocated into control (CONT) and DFA groups. The average parity number in the CONT and DFA groups was 3.70 ± 0.25 and 3.67 ± 0.26, respectively. Individual cow measurements were collected from 14 d before calving to 7 d after calving. All cows were fed a total mixed ration and grass hay before calving, and were fed another total mixed ration and grass hay after calving. The cows in the CONT group received no DFA III during the experimental period, and the cows in the DFA group received 40 g/d of DFA III from 14 d before to 7 d after calving. Dry matter intake was measured throughout the experiment. Serum calcium concentration, ruminal contraction rate and body weight were measured before and after calving. Milk yield was recorded after calving. The dry matter intake did not differ between the two groups before calving, and the lowest dry matter intake was observed at calving in the both groups. The dry matter intake began to increase after calving in the both groups but was higher in the DFA group (P < 0.01). At calving, the serum calcium concentration decreased to approximately 7.4 mg/dl in the both groups. However, the cows in the DFA group showed faster recovery in the serum calcium concentration from the decline to above 9.0 mg/dl. The ruminal contraction rate did not differ between the two groups and decreased at calving in the both groups. After calving, the ruminal contraction rate began to recover in the both groups but was greater in the DFA group. The ruminal contraction rate after calving was positively associated with the serum calcium concentration after calving (P < 0.01). Average milk yield after calving was higher in the DFA group than in the CONT group (P < 0.05). The average dry matter intake for the first 7 d after calving was positively associated with the serum calcium concentration, frequency of ruminal contraction and milk yield after calving (P < 0.01). These results showed that DFA III enhances the ruminal contraction rate and increases dry matter intake immediately after calving in multiparous cows by quickly restoring the serum calcium concentrations after their decline at calving.

进行这项研究的目的是研究产犊后立即使用双果糖酐（DFA）III对多头母牛干物质摄入量的影响。将74头过渡型荷斯坦奶牛分为对照组（CONT）和DFA组。CONT和DFA组中的平均奇偶校验数分别为3.70±0.25和3.67±0.26。从产犊前14天到产犊后7天收集个体奶牛的测量值。在产犊前，给所有母牛饲喂混合饲料和草干草，在产犊后，给饲喂另一种混合饲料和草干草。在实验期间，CONT组的母牛没有接受DFA III，DFA组的母牛从产犊前14天到产后7 d接受40 g / d的DFA III。在整个实验中测量干物质摄入量。血清钙浓度 产犊前后测量瘤胃收缩率和体重。产犊后记录产奶量。产犊前两组之间的干物质摄入量没有差异，并且产犊时两组的干物质摄入量最低。两组产犊后，干物质摄入量开始增加，但DFA组中较高（P <0.01）。产犊时，两组的血清钙浓度均降至约7.4 mg / dl。但是，DFA组的母牛血清钙浓度从下降到9.0 mg / dl以上恢复更快。两组的瘤胃收缩率无差异，两组均在产犊时降低。产犊后，两组的瘤胃收缩率开始恢复，而DFA组则更高。产犊后的瘤胃收缩率与产犊后的血清钙浓度呈正相关（P <0.01）。DFA组产犊后的平均产奶量高于CONT组（P<0.05）。产犊后前7 d的平均干物质摄入量与产犊后血清钙浓度，瘤胃收缩频率和产奶量呈正相关（P <0.01）。这些结果表明，DFA III可通过在产犊母牛产犊后降低其血清钙浓度而迅速恢复其产犊后立即提高瘤胃收缩率并增加干物质摄入量。