Effect of dietary oligosaccharides on the performance, intestinal microflora and serum immunoglobulin contents in laying hens.
Effect of dietary oligosaccharides on the performance, intestinal microflora and serum immunoglobulin contents in laying hens.
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日粮低聚糖对蛋鸡生产性能、肠道菌群和血清免疫球蛋白含量的影响
DOI：
10.5536/kjps.2009.36.2.125
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
I. Paik
中科院分区：
文献类型：
--
作者：
C. H. Kim;K. Shin;K. C. Woo;I. Paik
本试验旨在研究日粮中添加低聚甘露糖(MOS)和低聚果糖(FOS)对蛋鸡生产性能、免疫功能和肠道菌群的影响。采用完全随机区组设计，将96 0只27周龄海兰褐产蛋鸡随机分为6个处理组：对照组、抗生素(6ppm阿维拉霉素)、0.025%低聚果糖、0.05%低聚果糖、0.25%低聚果糖和0.5%低聚果糖。每个处理有40只鸡的4个重复，在16h光照条件下自由饲养6周。不同处理间的蛋鸡日产蛋量和蛋鸡产蛋量差异显著。0.025%MOS组蛋鸡日产蛋量显著高于对照组。抗生素处理组的蛋鸡产蛋量显著高于对照组。蛋重、采食量和饲料转化率各处理间差异不显著。蛋壳厚度以0.25%低聚果糖组最高，其余各处理间差异不显著。蛋壳强度、蛋壳颜色、蛋黄颜色和哈夫单位各处理间差异不显著。血清中免疫球蛋白含量在各处理间无显著差异。另一方面，试验组的免疫球蛋白A浓度与对照组相比有升高的趋势。饲料处理有降低氯离子含量的趋势。产气荚膜菌和大肠杆菌，增加乳杆菌属。本试验结果表明，蛋鸡日粮中添加MOS和FOS有提高产蛋率的趋势，与添加抗生素的效果相当。治疗对血清IgA水平和肠道菌群也有显著影响。
This study was conducted to investigate the effects of dietary supplementation of mannan-oligosaccharides (MOS) and fructo-oligosaccharides (FOS) on the performance, immune response and small intestinal microflora in laying hens. A total of 960 Hy-Line Brown laying hens of 27 wks old, housed in 2 bird cages, were assigned in a completely randomized block design into one of the following 6 dietary treatments: control, antibiotic (6 ppm avilamycine), 0.025% MOS, 0.05% MOS, 0.25% FOS, and 0.5% FOS. Each treatment had 4 replicates of 40 birds and was fed ad libitum for 6 wks under 16 h lighting regimen. There were significant differences among treatments in hen-day and hen-housed egg production. Hen-day egg production in 0.025% MOS was significantly higher than that of control. Hen-housed egg production in antibiotic-treated group was significantly higher compared with control. Egg weight, feed intake and feed conversion were not significantly different among treatments. Egg shell thickness was highest in 0.25% FOS, but was not significantly different among the rest of treatments. There were no significant differences among treatments in egg shell strength, egg shell color, egg yolk color and Haugh unit. IgG concentrations in serum were not significantly different among treatments. On the other hand, IgA concentrations of the treated birds tended to be increased compared with control. Dietary treatments tended to decrease Cl. perfringens and E. coli, and to increase Lactobacillus spp. The result of this experiment showed that dietary supplementation of MOS and FOS in laying hens tended to improve egg production comparable to the supplementation of antibiotics. The level of serum IgA and small intestinal microflora were also significantly affected by the treatments.