摘要
Continuous chromatographic separator techniques have allowed the extraction of more simple sugars from molasses (MOL). The resultant byproduct, concentrated separator byproduct (CSB), has reduced readily fermentable carbohydrates but elevated CP and mineral content. The feed value of CSB was compared to that of MOL in two separate trials. In Trial 1, a chopped forage mixture containing 84% meadow grass hay and 8% alfalfa hay was mixed with either CSB or MOL at 7.3% of DM. Diets were administered to four ruminally cannulated cows in a single reversal design. Digestibility of DM, ADF, NDF, and CP were measured. Ruminal pH, ammonia nitrogen (NH3), VFA, total viable bacteria (TVB), cellulose-xylan fermenting bacteria (CXFB), and ciliated protozoa (PTZ) were evaluated. Blood profiles of electrolytes were also measured. Digestibility of DM, ADF, NDF, and CP were 69.03, 68.58; 57.48, 57.77; 65.62, 64.75; and 67.63, 65.07% for the MOL and CSB diets, respectively. Only CP digestibility differed (P < .02). Ruminal pH, NH3, VFA, TVB, CXFB, and PTZ were 6.97, 6.93; 14.21, 16.71 mg/dL; 74.30, 74.78 μmol/mL; 26.79, 27.36 × 109/mL; 21.72, 21.36%; and 13.90, 7.80 × 103/mL for the MOL and CSB diets, respectively. Ruminal measurements did not differ. Blood electrolyte profiles were not altered. Trial 2 was similar to Trial 1 except the basal diet used was 47% barley grain, 35% alfalfa hay, and 10% barley straw. Either MOL or CSB was added at 7.3% of the DM. Digestibilities of DM, ADF, NDF, and CP were 69.52, 71.33; 35.96, 37.11; 27.93, 33.47; and 71.10, 73.66% for the MOL and CSB diets, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
摘要译文
连续色谱分离技术允许从糖蜜（MOL）中提取更多单糖。生成的副产物，浓缩的分离副产物（CSB），减少了可发酵的碳水化合物，但提高了CP和矿物质含量。 CSB的饲料价值在两个单独的试验中与MOL的饲料价值进行比较。在试用1中，将包含84％草甸草干草和8％苜蓿干草的切碎饲料混合物与7.3％DM的CSB或MOL混合。饮食是在一个反向设计中给予四只瘤胃插管的奶牛。测量DM，ADF，NDF和CP的消化率。瘤胃pH，氨氮（NH 3），VFA，评估总活菌（TVB），纤维素 - 木聚糖发酵细菌（CXFB）和纤毛原生动物（PTZ）。还测量了电解质的血液分布。 DM，ADF，NDF的消化率，和CP分别为69.03,68.58; 57.48，57.77; 65.62,64.75;和67.63,65.07％分别为MOL和CSB饮食。只有CP消化率不同（P .02）。瘤胃pH，NH 3，VFA，TVB，CXFB，和PTZ分别为6.97,6.93; 14.21,16.71mg / dL; 74.30，74.78μmol/ mL; 26.79,27.36×10 9 / mL; 21.72，21.36％;和13.90,7.80×10 3 / mL分别为MOL和CSB日粮。瘤胃测量没有差异。血液电解质分布没有改变。试验2与试验1相似，不同的是使用的基础日粮为47％大麦粒，35％苜蓿干草和10％大麦秸秆。MOL或CSB以7.3％的DM加入。 DM，ADF，NDF和CP的消化率分别为69.52,71.33; 35.96，37.11; 27.93，33.47;和71.10,73.66％分别为MOL和CSB饮食。（抽象截尾250字）