Wang Juan, Li Shuwei, Tang Wenjie, Diao Hui, Zhang Hongfu, Yan Honglin, Liu Jingbo
School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
Sichuan Academy of Animal Science, Chengdu 610066, China.
Vet Sci. 2023 Jan 21;10(2):79. doi: 10.3390/vetsci10020079.
At present, probiotics are being extensively evaluated for their efficacy as an alternative to antibiotics, and their safety in livestock production. In this study, 128 (Duroc, Yorkshire and Landrace) pigs with an average initial body weight of 28.38 ± 0.25 kg were allocated to four dietary treatments in a randomized complete-block design. There were eight pens per treatment, with four pigs per pen (two barrows and two gilts). Dietary treatments included: (1) control diet; (2) control diet + 0.05% complex probiotic; (3) control diet + 0.1% complex probiotic; (4) control diet + 0.2% complex probiotic. During the 28-day experimental period, the feeding of 0.1% complex probiotic in the diet increased body weight and average daily gain ( < 0.05). The addition of complex probiotics decreased total cholesterol and glucose concentrations in the blood ( < 0.01). Acetate concentrations in the blood increased from 0.1% complex probiotic in the diet ( < 0.05), while NH and HS emissions in the feces decreased ( < 0.05) from 0.1% or 0.2% complex probiotic in the diet. In conclusion, dietary complex probiotic supplementation changed the composition of intestinal short-chain fatty acids and improved growth performance for growing pigs.
目前，益生菌作为抗生素的替代品，其功效及其在畜牧生产中的安全性正在得到广泛评估。在本研究中，128头（杜洛克、约克夏和长白猪）初始平均体重为28.38±0.25千克的猪被随机完全区组设计分配到四种日粮处理中。每个处理有8个猪栏，每个猪栏4头猪（2头公猪和2头母猪）。日粮处理包括：（1）对照日粮；（2）对照日粮+0.05%复合益生菌；（3）对照日粮+0.1%复合益生菌；（4）对照日粮+0.2%复合益生菌。在28天的试验期内，日粮中添加0.1%复合益生菌可增加体重和平均日增重（<0.05）。复合益生菌的添加降低了血液中的总胆固醇和葡萄糖浓度（<0.01）。日粮中添加0.1%复合益生菌可使血液中乙酸盐浓度升高（<0.05），而日粮中添加0.1%或0.2%复合益生菌可使粪便中NH和HS排放量降低（<0.05）。总之，日粮中添加复合益生菌改变了肠道短链脂肪酸的组成，提高了生长猪的生长性能。
