College of Life Science, Longyan University, Longyan 364012, China.
Yi Zhitai Biotechnology (Longyan) Co., Ltd., Longyan 364012, China.
Biomed Res Int. 2020 Nov 13;2020:8839148. doi: 10.1155/2020/8839148. eCollection 2020.
1000 g maize cob mixed material was synergistically fermented by adding 2.5% composite probiotics and 0.06-0.08% NSP (nonstarch polysaccharide) enzyme to prepare fermented feed, and its effectiveness as feed for fattening pigs was investigated. The results showed that the appearance, texture, and nutrient quality of maize cobs significantly improved after fermentation, the total number of bacteria was 4.5 × 10 CFU/g, and the protein content was 7.1%. Compared to the control group, the pigs in the 6% fermented maize cob feed experimental group showed significantly increased daily feed intake, daily weight gain, and nutrient digestion rate ( < 0.05) and reduced feed conversion ratio ( < 0.05). Most indicators including slaughter performance and meat quality significantly improved. In addition, beneficial bacteria including in the intestines of the finishing pigs significantly increased, and pathogenic bacteria including in the intestines and feces were found to be significantly reduced ( < 0.05). The intestinal crypt depth, VH/CD ratio, and ileal mucosal immunity of the finishing pigs also significantly improved ( < 0.05). The cytokine content and gene expression of sIgA, IL-8, and TNF- were found to be significantly increased ( < 0.05). It could be concluded that the addition of 6% fermented maize cob feed to the diets of finishing pigs could promote their growth, improve their production performance and slaughter performance meat quality, and enhance their intestinal microecological balance and immunity.
1000g 玉米芯混合物料，添加 2.5%复合益生菌和 0.06-0.08%非淀粉多糖（NSP）酶协同发酵，制备发酵饲料，研究其作为育肥猪饲料的效果。结果表明，发酵后玉米芯的外观、质地和营养品质明显改善，细菌总数达到 4.5×10CFU/g，蛋白质含量达到 7.1%。与对照组相比，6%发酵玉米芯饲料实验组的猪只日采食量、日增重和养分消化率显著提高（<0.05），料重比显著降低（<0.05）。大多数指标包括屠宰性能和肉质都有显著改善。此外，育肥猪肠道中的有益菌如 显著增加，肠道和粪便中的致病菌如 显著减少（<0.05）。育肥猪的肠隐窝深度、VH/CD 比值和回肠黏膜免疫也显著提高（<0.05）。细胞因子含量和 sIgA、IL-8 和 TNF-的基因表达也显著增加（<0.05）。综上所述，在育肥猪日粮中添加 6%发酵玉米芯饲料可以促进其生长，提高生产性能和屠宰性能、肉质，并增强其肠道微生态平衡和免疫力。
