摘要
Twelve adult male crossbred (SahiwalHolstein Friesian) cattle were distributed into four groups of three each on body weight basis. Animals were given wheat straw as a basal diet. The animals of group I and II were supplemented with concentrate mixture and animals of group III and IV were supplemented with cold processed urea molasses mineral block (UMMB). Thirty mg monensin/day/animal was supplemented to the animals of group II and 35 ppm monensin were incorporated in the UMMB supplemented to the animals of group IV. Vit.A and D mixture was given to all the animals once a week. Dry matter (DM) intake (kg/d) through wheat straw was 19.0 percent higher in the UMMB (without monensin) supplemented group (group III) than those of the concentrate mixture (without monensin) supplemented group i.e. group I. Total DM intake (kg/d) was lower in the monensin supplemented groups than those of non-supplemented groups though differences were not statistically significant. Digestible dry matter, organic matter (OM), crude protein (CP) and total digestible nutrients (TDN) intake were similar in all the groups. Average block consumption for 45 d period in the group III (0.95 kg/d) and group IV (0.84 kg/d) did not differ significantly. DM digestibility (%) was significantly (p<0.01) higher in the group II (58.9) as compared to the group I (52.7) and group III (54.0) but similar to the group IV (57.2). OM digestibility was also significantly (p<0.05) higher in the group II (63.2) as compared to that of the group I (54.9) but similar to the group III (57.8) and IV (59.2). Ether extract (EE) digestibility was significantly (p<0.01) higher in the group I (76.9) and II (80.3) as compared to the group III (59.87) and IV (55.77). Nitrogen free extract (NFE) digestibility was significantly (p<0.05) higher in the group II (62.38) as compared to that of the other groups. Crude protein (CP) and crude fibre (CF) digestibilities were not affected either due to UMMB or monensin. Nitrogen balance did also not differ significantly among the groups. However, Ca and P balance (g/d) in the group III (3.1, 1.3) and IV (3.0, 1.4) were significantly (p<0.01) higher than those of the group I (0.6, 0.2) and II (0.4, 0.3). Blood glucose (mg/100ml) was significantly (p<0.01) higher in the group II (65.2) and IV (65.2) as compared to the group I (55.2) and group III (53.9). Plasma urea-N level (mg/100 ml) in the group III (19.0) and IV (17.8) were significantly (p<0.01) higher than that of the group I (10.5) and II (12.3). So, monensin supplementation either with cold process UMMB or concentrate mixture did not show any additional effect on feed intake and digestibility but increases blood glucose level in adult cattle.
摘要译文
将12只成年雄性杂交（SahiwalHolstein Friesian）牛分为四组，每组三只，基于体重。给动物喂食小麦秸秆作为基础饮食。组I和组II的动物补充浓缩混合物，组III和组IV的动物补充冷处理的尿素糖蜜矿物块（UMMB）。向组II的动物补充30mg莫能菌素/天/动物，并将35ppm莫能菌素掺入补充给组IV的动物的UMMB中。维生素。每周一次给所有动物施用A和D混合物。通过小麦秸秆的干物质（DM）摄入量（kg / d）为19。UMMB（不含莫能菌素）补充组（组III）比浓缩混合物（不含莫能菌素）补充组（即组I）高0％。莫能菌素补充组的总DM摄入量（kg / d）低于非补充组，但差异无统计学意义。可消化的干物质，有机质（OM），粗蛋白（CP）和总可消化营养素（TDN）摄入量在所有组中相似。第三组中45天的平均块消耗量（0。95 kg / d）和IV组（0.84 kg / d）没有显着差异。与组I（52.7）和组III（54）相比，组II中的DM消化率（％）显着（p 0.01）更高（58.9）。0）但类似于IV组（57.2）。与组I（54.9）相比，组II（63.2）的OM消化率也显着（p 0.05）更高，但与组III相似（57。8）和IV（59.2）。与III组（59.87）和IV（55.77）相比，I组（76.9）和II组（80.3）的乙醚提取物（EE）消化率显着（p 0.01）。与其他组相比，II组（62.38）的无氮提取物（NFE）消化率显着（p 0.05）更高。由于UMMB或莫能菌素，粗蛋白（CP）和粗纤维（CF）消化率不受影响。各组之间的氮平衡也没有显着差异。然而，III组（3.1,1.3）和IV组（3.0,1.4）的Ca和P平衡（g / d）显着（p 0.01）高于I组（0.6,0.2）和II组（0.4,0.3） ）。与组I（55.2）和组III（53.9）相比，组II（65.2）和IV（65.2）中的血糖（mg / 100ml）显着（p 0.01）。III组（19.0）和IV组（17.8）的血浆尿素氮水平（mg / 100ml）显着（p 0.01）高于组I（10.5）和II组（12.3）。所以，用冷处理UMMB或浓缩混合物补充莫能菌素对饲料摄入和消化率没有任何额外影响，但增加了成年牛的血糖水平。
De, Debasis; Singh, G.P.;. Monensin Enriched Urea Molasses Mineral Block on Feed Intake, Nutrient Digestibility and Blood Glucose in Cattle Fed on Wheat Straw Based Diet[J]. Asian-Australasian Journal of Animal Sciences, 2002,15(11): 1579-1584