基于Meta分析的布氏乳杆菌对青贮品质影响进展研究  

Progress Study on the Effects of Lactobacillus buchneri on Silage Quality based on Meta-Analysis

作　　者：赵佳婕 贾玉山[1] 王志军[1] 都帅[1] 郝俊峰 格根图[1] ZHAO Jia-jie;JIA Yu-shan;WANG Zhi-jun;DU Shuai;HAO Jun-feng;GE Gen-tu(College of Gassland Science,Inner Mongolia Agricultural University/Key Laboratory of Forage Cultivation and the Processingand Highly Efi-cient Utilizaion of the Ministry of Agricultural Key Laboratory of Grassland Resources of the Ministry of Education,Hohhot,Inner Mongolia 010010,China)

机构地区：[1]内蒙古农业大学草业学院/农业农村部饲草栽培/加工与高效利用重点实验室/草地资源教育部重点实验室,内蒙古呼和浩特010010

出　　处：《草地学报》2025年第3期665-677,共13页Acta Agrestia Sinica

基　　金：国家牧草产业技术体系(CARS-34)资助。

摘　　要：布氏乳杆菌(Lactobacillus buchneri)作为一种被广泛研究的益生菌,已被证实在饲料青贮发酵过程中发挥积极作用。尽管已有大量研究表明布氏乳杆菌在青贮饲料中具有应用价值,但是关于其对青贮品质影响的研究结果差异较大,这可能是由于实验设计、青贮条件以及所用菌株差异等多种因素造成的。本研究采用荟萃分析的方法,深入探究布氏乳杆菌对青贮饲料发酵品质、营养成分、有氧稳定性以及微生物多样性所产生的影响。在数据库中纳入了65篇已发表的文章,用于评估布氏乳杆菌对青贮的影响,结果显示:其添加显著提高了青贮饲料的粗蛋白质含量、降低了难以消化的纤维含量。同时,布氏乳杆菌的添加改变了青贮饲料的发酵模式,提升了发酵品质。虽然布氏乳杆菌的添加对微生物多样性起到了抑制作用,然而,它却能在一定程度上提高乳酸菌的数量,并且有效抑制好氧细菌等腐败微生物的生长,从而显著提高青贮饲料的有氧稳定性。采用亚组分析的方法,对布氏乳杆菌在青贮饲料中的影响进行精准评估,确定了布氏乳杆菌单独添加最适宜的青贮原料种类为豆科牧草;最适宜的添加量范围为1×10^(6)~1×10^(8)cfu·g^(-1);添加布氏乳杆菌青贮后的45~60 d作用效果最显著。Lactobacillus buchneri,as a widely studied probiotic,has been shown to play active roles in silage fermentation.Although a large number of studies have demonstrated Lactobacillus buchneri has application value in silage,the results of previous studies on its effects on silage quality were varied widely,which may be due to a variety of factors such as experimental design,silage conditions,and differences in the strains used.In this study,a meta-analysis was conducted to investigate the effects of Lactobacillus buchneri on silage fermenta⁃tion quality,nutrient composition,aerobic stability and microbial diversity.Sixty-five published articles were included in the database to assess the effects of Lactobacillus buchneri on silage,and the results showed that its addition significantly increased the crude protein content and decreased the indigestible fibre content of silage.At the same time,the addition of Lactobacillus buchneri altered the fermentation pattern of the silage and improved the fermentation quality.Although the addition of Lactobacillus buchneri inhibited microbial diver⁃sity,it could increase the number of lactic acid bacteria to a certain extent and effectively inhibit the growth of spoilage microorganisms such as aerobic bacteria,which significantly improved the aerobic stability of silage.The subgroup analysis was used to accurately assess the effects of Lactobacillus buchneri in silage,and it was determined that the most suitable silage raw material species for Lactobacillus buchneri addition alone was legu⁃minous forage.The optimal dosage range was 1×10^(6)~1×10^(8)cfu·g^(-1),and the most significant effect was achieved 45-60 days after the addition of Lactobacillus buchneri in the silage.

关 键 词：META分析 布氏乳杆菌 青贮饲料 品质 微生物多样性 

分 类 号：S816.53[农业科学—饲料科学]