Sun Hanxue, Liu Yali, Zeng Tao, Li Guoqin, Tao Zhengrong, Zhou Xueqin, Wen Jihui, Chen Xiaoyan, Xu Wenwu, Lu Lizhi, Cao Hongguo
College of Animal Science and Technology, Anhui Agricultural University, Hefei, China.
Animal Husbandry and Veterinary Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
Front Vet Sci. 2022 Mar 4;9:813800. doi: 10.3389/fvets.2022.813800. eCollection 2022.
This experiment was conducted to investigate the effects of dietary supplementation with different levels of coated sodium butyrate (CSB) and polysaccharides extracted from (CCP) on growth performance, intestinal tissue morphology and ileum microbiome in squabs. A total of 420 1-day-old squabs were randomly divided into seven groups with 5 replicates each and 12 squabs per replicate. The squabs were fed basal diet (control group) and basal diet supplemented with different levels of CSB (275, 550, and 1,100 mg/kg, groups CSB-275, CSB-550, CSB-1100) and CCP (27.5, 55, and 110 mg/kg, groups CCP-27.5, CCP-55, and CCP-110), respectively. The experiment was conducted for 28 days. The results revealed that the final BW and average daily gain concentration were higher ( < 0.05) in squabs of CSB-275 and CCP-110 groups than those in the CON group. Comparing with control group, the squabs in the groups CSB-275, CSB-550, and CCP-55 obtained higher villus height/crypt depth (VH/CD) of the duodenum and higher VH of the jejunum ( < 0.05). Operational taxonomic units in the groups CSB-550 and CCP-27.5 were also increased ( < 0.05). Regarding the relative abundance of flora, the abundance in the groups CSB-550, CSB-1100, and CCP-55 were higher than in control group ( < 0.05), and the abundance of CSB-275, CSB-550, CSB-1100, and CCP-110 were elevated ( < 0.05). However, the abundance in CSB-275, CSB-550, CSB-1100, and CCP-27.5 decreased ( < 0.05). In summary, results obtained in the present study indicate that CSB and CCP can improve growth performance, intestinal microbial balance and gut health of squabs.
本试验旨在研究日粮中添加不同水平的包膜丁酸钠（CSB）和从[具体来源未给出]提取的多糖（CCP）对雏鸽生长性能、肠道组织形态和回肠微生物群的影响。将420只1日龄雏鸽随机分为7组，每组5个重复，每个重复12只雏鸽。雏鸽分别饲喂基础日粮（对照组）以及添加不同水平CSB（275、550和1100 mg/kg，即CSB - 275组、CSB - 550组、CSB - 1100组）和CCP（27.5、55和110 mg/kg，即CCP - 27.5组、CCP - 55组和CCP - 110组）的基础日粮。试验持续28天。结果显示，CSB - 275组和CCP - 110组雏鸽的末重和平均日增重浓度高于对照组（P < 0.05）。与对照组相比，CSB - 275组、CSB - 550组和CCP - 55组雏鸽十二指肠的绒毛高度/隐窝深度（VH/CD）更高，空肠的VH也更高（P < 0.05）。CSB - 550组和CCP - 27.5组的可操作分类单元也有所增加（P < 0.05）。关于菌群的相对丰度，CSB - 550组、CSB - 1100组和CCP - 55组中的[某种菌群名称未给出]丰度高于对照组（P < 0.05），CSB - 275组、CSB - 550组、CSB - 1100组和CCP - 110组中的[另一种菌群名称未给出]丰度升高（P < 0.05）。然而，CSB - 275组、CSB - 550组、CSB - 1100组和CCP - 27.5组中的[又一种菌群名称未给出]丰度降低（P < 0.05）。综上所述，本研究结果表明，CSB和CCP可改善雏鸽的生长性能、肠道微生物平衡和肠道健康。
