BACKGROUND The present study compared the effects of soybean meal fermented by three different probiotics organisms with non-fermented soybean meal on growth performance, serum parameters, immune chemistry and intestinal morphology in weaned piglets. METHODS One hundred and forty-four 35-day old crossbred (Duroc × Landrace × Yorkshire) piglets were randomly allocated into four different dietary treatments (n = 36 per group) containing 0, 5, 10 and 15% fermented soybean meal. RESULTS The piglets fed fermented soybean meal showed an increase (p < 0.05) in average daily weight gain and a reduction in feed consumption (p < 0.05).The piglets fed 10 and 15% fermented soybean meal showed the greatest growth improvement with higher levels of serum alkaline phosphatase and total serum proteins. Serum urea nitrogen in the experimental group was significantly lower than control whereas serum IgG, IgM and IgA levels were all significantly higher. Moreover, villus height in the duodenum, jejunum, and ileum was significantly higher (p < 0.05) and the crypt depth was significantly lower (p < 0.05). The levels of the autophagy factor LC3B in piglets showed a downward trend in the jejunum and ileum compared to control. CONCLUSIONS Fermented soybean meal could significantly improve the growth, immune function and intestinal health in weaned piglets, and the best effective benefits showed in 10% FSBM group.

中文翻译：

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植物乳杆菌、枯草芽孢杆菌和酿酒酵母发酵豆粕对断奶仔猪生长、免疫功能和肠道形态的影响。


背景本研究比较了三种不同益生菌发酵的豆粕与非发酵豆粕对断奶仔猪生长性能、血清参数、免疫化学和肠道形态的影响。方法 将 144 头 35 日龄杂交仔猪（杜洛克 × 长白 × 约克夏）随机分配至 4 种不同的日粮处理组（每组 36 头），其中含有 0%、5%、10% 和 15% 发酵豆粕。结果 饲喂发酵豆粕的仔猪平均日增重增加 (p < 0.05)，饲料消耗量减少 (p < 0.05)。饲喂 10% 和 15% 发酵豆粕的仔猪生长改善最大，水平较高血清碱性磷酸酶和血清总蛋白。实验组血清尿素氮显着低于对照组，而血清IgG、IgM、IgA水平均显着升高。此外，十二指肠、空肠和回肠的绒毛高度显着较高（p < 0.05），而隐窝深度显着较低（p < 0.05）。与对照组相比，仔猪空肠和回肠中自噬因子 LC3B 的水平呈下降趋势。结论发酵豆粕能显着改善断奶仔猪的生长、免疫功能和肠道健康，其中10% FSBM组效果最佳。