摘要
A feeding trial was carried out to investigate the effect of dietary complex probiotics on performance. egg qualities and intestinal microflora in laying hens. Three hundred twenty ISA Brown laying hens, 34 weeks of age, were randomly allotted to four dietary treatments containing 0, 0.1, 0.2 and 0.4% complex probiotics for 12 weeks. There were four replicates per treament. Total egg production, soft and broken egg number tended to improve as dietary complex probiotics increased, but was not significantly different. Average egg weight was significantly higher in the 0.1% and 0.2% complex probiotics than the control(P<0.05). Daily egg mass also increased by adding complex probiotics compared to that of control, but was not statistically different. No significant difference was found in feed intake and feed conversion ratio. Eggshell breaking strength and thicknes were not significantly different, whereas yolk color was significantly lower in the supplemental 0.2% probiotics than the comtrol at 12 weeks of age(P<0.05). There was no significant difference in Haugh unit. Total number of cecum Lactobacillus and naerobes were significantly higher in the complex probiotics than control(p.0.05). However, the number of ileal Lactobacillus and naerobe were not significantly different. It was concluded that dietary complex probiotics could improve the egg weight and intestinal beneficial microbes.
摘要译文
进行了喂养试验以研究膳食复合益生菌对性能的影响。蛋鸡的蛋质和肠道菌群。将34周龄的320只ISA Brown蛋鸡随机分配到含有0,0.1,0.2和0.4％复合益生菌的4个饮食处理中12周。每次治疗有四次重复。随着膳食复合益生菌的增加，总产蛋量，软蛋和破蛋数趋于改善，但没有显着差异。0.1％和0.2％复合益生菌的平均蛋重显着高于对照（P 0.05）。与对照相比，通过添加复杂的益生菌，每日蛋重也增加，但没有统计学差异。采食量和饲料转化率没有显着差异。蛋壳断裂强度和厚度没有显着差异，而补充0.2％益生菌的蛋黄颜色显着低于12周龄的对照组（P 0.05）。 Haugh单位没有显着差异。在复合益生菌中，盲肠乳杆菌和naerobes的总数显着高于对照（p.0.05）。然而，回肠乳杆菌和幼稚的数量没有显着差异。结论是，膳食复合益生菌可以改善蛋重和肠道有益微生物。
;;;;;;;;; ;. Effects of Dietary Supplementation of Complex Probiotics on Performance in Laying Hens[J]. Korean Journal of Poultry Science, 2003,30(3): 145-150