摘要
This experiment was conducted to investigate the effects of different compound probiotics on the performance, cecal microflora, and intestinal immunity of laying hens. A total of 270 Jing Fen No.6 (22-week-old) were randomly divided into 3 groups: basal diet (CON); basal diet supplemented with 6% fermented feed A by Bacillussubtilis,Lactobacillus, and Yeast (FA); and with 6% fermented feed B by C. butyricum and L. salivarius (FB). Phytic acid, trypsin inhibitor, β-glucan concentrations, and pH value in fermented feed were lower than the CON group (p < 0.05). The feed conversion ratio (FCR) in the experimental groups was decreased, while albumen height and Haugh unit were increased, compared with the CON group (p < 0.05). Fermented feed could upregulate the expression of the signal pathway (TLR4/MyD88/NF-κB) to inhibit mRNA expression of pro-inflammatory cytokines (p < 0.05). Fermented feed promoted the level of Romboutsia (in the FA group) Butyricicoccus (in the FB group), and other beneficial bacteria, and reduced opportunistic pathogens, such as Enterocooccus (p < 0.05). Spearman’s correlations showed that the above bacteria were closely related to albumen height and intestinal immunity. In summary, fermented feed can decrease the feed conversion ratio, and improve the performance and intestinal immunity of laying hens, which may be related to the improvement of the cecal microflora structure.
摘要译文
进行了该实验，以研究不同复合益生菌对育龄母鸡的性能，盲肠微生物，肠梗阻的影响。共有270号（22周龄）将270名（22周龄）随机分为3组：基础饮食（CON）;基础饮食补充有6％发酵饲料A通过Bacillussubtilis，乳杆菌和酵母（Fa）;用C. butyricum和L. salivarius（FB）的6％发酵饲料B.植酸，胰蛋白酶抑制剂，β-葡聚糖浓度和发酵饲料中的pH值低于CON组（P <0.05）。实验组中的饲料转化率（FCR）降低，而蛋白质高度和Haugh单元与Con组相比增加（P <0.05）。发酵饲料可以上调信号途径（TLR4 / MYD88 / NF-κB）的表达，抑制促炎细胞因子的mRNA表达（P <0.05）。发酵饲料促进romboutsia（在FA组中）丁霉菌（在FB组中）和其他有益细菌，以及减少机会理性病原体，如肠杆菌（P <0.05）。 Spearman的相关性表明，上述细菌与蛋白身高和肠梗阻密切相关。总之，发酵饲料可降低进料转化率，提高饲养母鸡的性能和肠梗阻，这可能与宫颈微生物组织的改善有关。
Lijuan Guo; Jing Lv; Yinglu Liu; Hui Ma; Bingxu Chen; Keyang Hao; Jia Feng;Yuna Min[ [*]. Effects of Different Fermented Feeds on Production Performance, Cecal Microorganisms, and Intestinal Immunity of Laying Hens[J]. Animals, 2021,11(10): 2799