摘要
Two experiment were conducted to evaluate the feeding value of probiotics for the broiler chicks. Basal diets based on corn and soybean meal with no supplemental probiotics contained 21% dietary crude protein for the first 3 weeks and 19% for the rest of two weeks. In experiment 1, 0.2 % probiotics containing 2X 10 6 cfu /ml of Saccharomyces cerevisiae(S), Clostridium butyricum(C), Lactobacillus acidophilus(L), Bacillus polyfermenticus(B) were respectively supplemented to control groups. Two hundred day-olo chicks were randomly assigned to five treatments which had four replicates of 10 chicks each per treatment. Weight gain, feed consurnption, feed conversion ratio (FCR) were weekly measured for 5 weeks. The number of intestinal microflora was examined at the end of experiment. In experiment 1, Weight gain and feed intake of chicks fed probiotics exhibited a significant response compared to those of control for the first three weeks(P<0.01). Weight gain of S or C treatments was higher than that of control for the rest of two weeks, whereas it was significantly lower in L and B treatments than S or C treatments (P<0.01). Chicks fed S or C was significantly increased weight gain(P <0.05) compared to that of control at five weeks of age. FCR of C treatment seemed to improve relative to other supplemental probiotics groups, but was not significantly different. The number of intestinal anaerobes and Lactobacillus in large intestine of chicks fed probiotics supplements was significantly decreased compared to control groups(P<0.01). In experiment 2, there were six treatments: Ti, control; T2, 0.2%S; T3, 0.2%S + 0.2%C; T4, 0.2%S + 0.2%L; T5, 0.2%S + 0.2%B; T6, 0.2%S + 0.1%C + o.i%L + 0.1%B. Control diet based on corn soybean meal contained 21% CP and 3,2OOca1 /g ME with no probiotics. There were four replicates of 10 chicks each per treatment. Weight gain of chicks fed probiotics tended to increase compared to control groups, but were not significantly different between them. FCR was also improved in probiotics treatments. However, there were no significant differences between probiotics supplementation and control groups. The results of these experiments indicated that dietary supplemental probiotics improved weight gain, feed efficiency for the first three weeks of young broiler chicks, whereas supplementation of C, L, B combined probiotics to young broiler chicks was not superior to those of single or two probiotics.
摘要译文
进行了两个实验来评估益生菌对肉仔鸡的饲喂价值。基于玉米和豆粕而没有补充益生菌的基础日粮在前3周含有21％的日粮粗蛋白，其余两周含有19％的日粮。在实验1中，0。含有2X 10 6 cfu / ml酿酒酵母（S），酪酸梭菌（C），嗜酸乳杆菌（L）的2％益生菌，将聚营养发酵单胞菌（B）分别补充到对照组。将200天的小鸡随机分配到5个处理中，每个处理具有4个重复的10只小鸡。体重增加，饲料加强，每周测量饲料转化率（FCR），持续5周。在实验结束时检查肠道菌群的数量。在实验1中，与前三周的对照相比，喂食益生菌的雏鸡的体重增加和采食量显示出显着的反应（P 0.01）。在接下来的两周内，S或C处理的体重增加高于对照，而L和B处理的体重增加显着低于S或C处理（P 0.01）。与5周龄对照相比，喂食S或C的小鸡体重增加显着增加（P 0.05）。相对于其他补充益生菌组，C治疗的FCR似乎有所改善，但没有显着差异。与对照组相比，喂食益生菌补充剂的小鸡肠道厌氧菌和乳杆菌数量显着减少（P 0.01）。在实验2中，有六种治疗方法：钛，对照; T2,0.2％S; T3,0.2％S + 0.2％C; T4,0.2％S + 0.2％L; T5,0.2％S + 0.2％B; T6,0.2％S + 0.1％C + o.i％L + 0.1％B。基于玉米豆粕的对照饮食含有21％CP和3,200ca1 / g ME，不含益生菌。每次处理有4只重复，每只10只小鸡。与对照组相比，喂食益生菌的雏鸡的体重增加趋于增加，但它们之间没有显着差异。益生菌治疗中FCR也有所改善。然而，益生菌补充剂和对照组之间没有显着差异。这些实验的结果表明，膳食补充益生菌可以改善体重增加，年轻肉仔鸡前三周的饲料效率，而C，L，B联合益生菌对年轻肉鸡的补充并不优于单一或两种益生菌。
Effect of Feeding Probiotics on Performance and Intestinal Microflora of Broiler Chicks[J]. Korean Journal of Poultry Science, 1998,25(1): 31-37