Institute of Microbiology, Guangxi Academy of Agricultural Sciences, Nanning, China.
Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Guangxi Academy of Agricultural Sciences, Nanning, China.
J Anim Physiol Anim Nutr (Berl). 2022 Sep;106(5):1046-1059. doi: 10.1111/jpn.13649. Epub 2021 Oct 10.
Fermented soya bean meal (FSBM) is believed to have improved nutritional qualities compared with soya bean meal (SBM) and is also cheaper than soya protein concentration (SPC) and fish meal (FM). Therefore, the present study was conducted to compare the effects of FSBM replacing SBM, SPC and FM in diets on growth performance, serum biochemistry profile, short-chain fatty acid concentrations in digesta, intestinal mucosal enzyme activities, intestinal proinflammatory cytokine concentrations and morphology in weaned piglets. One hundred and twenty 28-day-old piglets (Duroc × Landrace × Yorkshire, body weight: 6.73 ± 1.14 kg) were randomly allocated to four treatment diets (six replicate pens with five piglets per pen) containing SBM, SPC, FM or FSBM as the protein source, respectively.
Dietary FSBM supplementation improved average daily gain (p < 0.05), gain to feed ratio (p < 0.05), and digestibility of dry matter, gross energy, crude protein and organic matter (p < 0.05) in pigs compared with those fed SBM during 0-14 days and reduced diarrhoea rate (p < 0.05) compared with those fed SBM and FM during 0-14 days. Moreover, pigs fed FBSM had greater IgA and IgM contents and antioxidase activities than those provided SBM and SPC on day 14. In addition, the butyrate concentration in the cecum of pigs fed FSBM was greater than those fed the other diets (p < 0.05), and the trypsin activity in duodenum and jejunum of pigs provided FSBM was greater than those fed SBM (p < 0.05). Moreover, higher villus height (p < 0.05) and villus height to crypt depth ratio (p < 0.05) and lower crypt depth (p < 0.05) in the duodenum of pigs fed FSBM were observed, and pigs fed FSBM had a lower (p < 0.05) TNF-α concentration in jejunum compared with those fed SBM.
In conclusion, dietary FSBM supplementation to replace SBM, SPC and FM could improve piglets' growth performance, intestinal health and immune function.
发酵豆粕（FSBM）被认为比豆粕（SBM）具有更好的营养价值，而且比大豆浓缩蛋白（SPC）和鱼粉（FM）便宜。因此，本研究旨在比较 FSBM 替代 SBM、SPC 和 FM 对断奶仔猪生长性能、血清生化指标、消化道短链脂肪酸浓度、肠黏膜酶活性、肠内促炎细胞因子浓度和形态的影响。120 头 28 日龄仔猪（杜洛克×长白×约克夏，体重：6.73±1.14kg）随机分为 4 种处理日粮（每个处理 6 个重复栏，每个栏 5 头猪），分别以 SBM、SPC、FM 或 FSBM 作为蛋白质来源。
与 SBM 组相比，日粮 FSBM 补充可提高仔猪 0-14 日龄的平均日增重（p<0.05）、增重与采食量比（p<0.05）和干物质、总能、粗蛋白和有机物的消化率（p<0.05），并降低 0-14 日龄的腹泻率（p<0.05）。此外，与 SBM 和 FM 组相比，14 日龄时，FSBM 组仔猪的 IgA 和 IgM 含量及抗氧化酶活性更高。此外，FSBM 组仔猪盲肠丁酸浓度高于其他组（p<0.05），FSBM 组仔猪十二指肠和空肠的胰蛋白酶活性高于 SBM 组（p<0.05）。此外，FSBM 组仔猪十二指肠的绒毛高度（p<0.05）和绒毛高度与隐窝深度比（p<0.05）较高，隐窝深度较低（p<0.05），FSBM 组仔猪空肠的 TNF-α浓度低于 SBM 组（p<0.05）。
总之，日粮 FSBM 替代 SBM、SPC 和 FM 可提高仔猪的生长性能、肠道健康和免疫功能。
