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Zhang J, Shi B, Lu S, Wang S, Ren X, Liu R, Dong H, Li K, Fouad D, Ataya FS, Mansoor MK, Qamar H, Wu Q. Metagenomic analysis for exploring the potential of Lactobacillus yoelii FYL1 to mitigate bacterial diarrhea and changes in the gut microbiota of juvenile yaks. Microb Pathog 2024; 186:106496. [PMID: 38072228 DOI: 10.1016/j.micpath.2023.106496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 01/02/2024]
Abstract
Diarrhea in calves is a common disease that results in poor nutrient absorption, poor growth and early death which leads to productivity and economic losses. Therefore, it is important to explore the methods to reduce diarrhea in yak's calves. Efficacy of lactic acid bacteria (LAB) for improvement of bacterial diarrhea is well recognized. For this purpose, two different doses (107 CFU, 1011 CFU) of Lactobacillus yoelii FYL1 isolated from yaks were fed to juvenile yaks exposed to E. coli O78. After a trial period of ten days fresh feces and intestinal contents of the experimental yaks were collected and metagenomics sequencing was performed. It was found that feeding a high dose of Lactobacillus yoelii FYL1 decreased abundance of phylum Firmicutes in the E. coli O78 infected group whereas, it was high in animals fed low dose of Lactobacillu yoelii FYL1. Results also revealed that counts of bacteria from the family Oscillospiraceae, genus Synergistes and Megasphaera were higher in control group whereas, order Bifidobacteriales and family Bifidobacteriaceae were higher in infected group. It was observed that bacterial counts for Pseudoruminococcus were significantly (P < 0.05) higher in animals of group that were given high dose of Lactobacillus yoelii FYL1 (HLAB). Compared to infected group multiple beneficial bacterial genera such as Deinococus and Clostridium were found higher in the animals that were given a low dose of Lactobacillus yoelii FYL1 (LLAB). The abundance of pathogenic bacterial genera that included Parascardovia, Bacteroides and Methanobrevibacter was decreased (P < 0.05) in the lower dose treated group. The results of functional analysis revealed that animals of LLAB had a higher metabolism of terpenoids and polyketides compared to animals of infected group. Virus annotation also presented a significant inhibitory effect of LLAB on some viruses (P < 0.05). It was concluded that L. yoelii FYL1 had an improved effect on gut microbiota of young yaks infected with E. coli O78. This experiment contributes to establish the positive effects of LAB supplementation while treating diarrhea.
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Affiliation(s)
- Jingbo Zhang
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Bin Shi
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China; Institute of Animal Husbandry and Veterinary Medicine, Tibet Autonomous Region Academy of Agriculture and Animal Science, Lhasa, 850009, China
| | - Sijia Lu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shuo Wang
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Xiaoli Ren
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Ruidong Liu
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Hailong Dong
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Kun Li
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Dalia Fouad
- Department of Zoology, College of Science, King Saud University, PO Box 22452, Riyadh, 11495, Saudi Arabia
| | - Farid Shokry Ataya
- Department of Biochemistry, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Muhammad Khalid Mansoor
- Department of Microbiology, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Hammad Qamar
- Institute of Animal Sciences, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Qingxia Wu
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China.
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