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Ren J, Li Y, Ni H, Zhang Y, Zhao P, Xiao Q, Hong X, Zhang Z, Yin Y, Li X, Zhang Y, Yang Y. Gut microbiota derived from fecal microbiota transplantation enhances body weight of Mimas squabs. Anim Biosci 2024; 37:1428-1439. [PMID: 38575121 PMCID: PMC11222855 DOI: 10.5713/ab.23.0475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/17/2024] [Accepted: 02/08/2024] [Indexed: 04/06/2024] Open
Abstract
OBJECTIVE Compared to Mimas pigeons, Shiqi pigeons exhibit greater tolerance to coarse feeding because of their abundant gut microbiota. Here, to investigate the potential of utilizing intestinal flora derived from Shiqi pigeons, the intestinal flora and body indices of Mimas squabs were evaluated after fecal microbiota transplantation (FMT) from donors. METHODS A total of 90 one-day-old squabs were randomly divided into the control group (CON), the low-concentration group (LC) and the high-concentration group (HC): gavaged with 200 μL of bacterial solution at concentrations of 0, 0.1, and 0.2 g/15 mL, respectively. RESULTS The results suggested that FMT improved the body weight of Mimas squabs in the HC and LC groups (p<0.01), and 0.1 g/15 mL was the optimal dose during FMT. After 16S rRNA sequencing was performed, compared to those in the CON group, the abundance levels of microflora, especially Lactobacillus, Muribaculaceae, and Megasphaera (p<0.05), in the FMT-treated groups were markedly greater. Random forest analysis indicated that the main functions of key microbes involve pathways associated with metabolism, further illustrating their important role in the host body. CONCLUSION FMT has been determined to be a viable method for augmenting the weight and intestinal microbiota of squabs, representing a unique avenue for enhancing the economic feasibility of squab breeding.
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Affiliation(s)
- Jing Ren
- College of Animal Science, Jilin University, Changchun 130062,
China
| | - Yumei Li
- College of Animal Science, Jilin University, Changchun 130062,
China
| | - Hongyu Ni
- College of Animal Science, Jilin University, Changchun 130062,
China
| | - Yan Zhang
- College of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin 132109,
China
| | - Puze Zhao
- College of Animal Science, Jilin University, Changchun 130062,
China
| | - Qingxing Xiao
- College of Animal Science, Jilin University, Changchun 130062,
China
| | - Xiaoqing Hong
- College of Animal Science, Jilin University, Changchun 130062,
China
| | - Ziyi Zhang
- College of Animal Science, Jilin University, Changchun 130062,
China
| | - Yijing Yin
- College of Animal Science, Jilin University, Changchun 130062,
China
| | - Xiaohui Li
- Center of Animal Experiment, College of Basic Medical Sciences, Jilin University, Changchun 130021,
China
| | - Yonghong Zhang
- College of Animal Science, Jilin University, Changchun 130062,
China
| | - Yuwei Yang
- College of Animal Science, Jilin University, Changchun 130062,
China
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Rosch MEG, Rehner J, Schmartz GP, Manier SK, Becker U, Müller R, Meyer MR, Keller A, Becker SL, Keller V. Time series of chicken stool metagenomics and egg metabolomics in changing production systems: preliminary insights from a proof-of-concept. ONE HEALTH OUTLOOK 2024; 6:4. [PMID: 38549118 PMCID: PMC10979557 DOI: 10.1186/s42522-024-00100-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 03/06/2024] [Indexed: 04/01/2024]
Abstract
BACKGROUND Different production systems of livestock animals influence various factors, including the gut microbiota. METHODS We investigated whether changing the conditions from barns to free-range chicken farming impacts the microbiome over the course of three weeks. We compared the stool microbiota of chicken from industrial barns after introducing them either in community or separately to a free-range environment. RESULTS Over the six time points, 12 taxa-mostly lactobacilli-changed significantly. As expected, the former barn chicken cohort carries more resistances to common antibiotics. These, however, remained positive over the observed period. At the end of the study, we collected eggs and compared metabolomic profiles of the egg white and yolk to profiles of eggs from commercial suppliers. Here, we observed significant differences between commercial and fresh collected eggs as well as differences between the former barn chicken and free-range chicken. CONCLUSION Our data indicate that the gut microbiota can undergo alterations over time in response to changes in production systems. These changes subsequently exert an influence on the metabolites found in the eggs. The preliminary results of our proof-of-concept study motivate larger scale observations with more individual chicken and longer observation periods.
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Affiliation(s)
- Michael E G Rosch
- Medical Doctor program Human Medicine, Saarland University/ Saarland University Medical Center, 66123/66421, Saarbrücken/Homburg, Germany
| | - Jacqueline Rehner
- Institute of Medical Microbiology and Hygiene, Saarland University, 66421, Homburg/Saar, Germany
| | - Georges P Schmartz
- Department of Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Sascha K Manier
- Department of Experimental and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Saarland University, Center for Molecular Signaling (PZMS), 66421, Homburg/Saar, Germany
| | - Uta Becker
- MIP Pharma GmbH, 66386, Sankt Ingbert, Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Markus R Meyer
- Department of Experimental and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Saarland University, Center for Molecular Signaling (PZMS), 66421, Homburg/Saar, Germany
| | - Andreas Keller
- Department of Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Sören L Becker
- Institute of Medical Microbiology and Hygiene, Saarland University, 66421, Homburg/Saar, Germany
| | - Verena Keller
- Department of Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany.
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Wang L, Zhang Z, Zhu X, Zhao Y, Iqbal M, Lin Z, Nawaz S, Xu M, Hu M, Bhutto ZA, Li J. The Effect of Lactobacillus sakei on Growth Performance and Intestinal Health in Dogs: Gut Microbiota and Metabolism Study. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10160-9. [PMID: 37740881 DOI: 10.1007/s12602-023-10160-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2023] [Indexed: 09/25/2023]
Abstract
The gut microbiota is the largest and most complex ecosystem consisting of trillions of microorganisms, which influenced by various external factors. As an important probiotic species, Lactobacillus helps to improve gut microbial diversity and composition, underlying potential efficacy in growth performance and disease prevention. However, limited studies have been investigated the relationship between Lactobacillus sakei and intestinal health in dogs. In this study, dogs in the two groups were fed a standard diet (group C, n = 8) and Lactobacillus sakei diet (group P, n = 8), respectively. The growth performance, serum biochemical indices, antioxidant capacity, gut microbiota, and metabolism of dogs in both groups were studied. Results from growth trials showed that L. sakei can significantly improve the growth performance of dogs, including increased weight gain (p < 0.05), serum biochemical indices, i.e., ALP, TP, and ALB (p < 0.05), and better antioxidant capacity, i.e., SOD and GSH-Px (p < 0.05). Significant changes in the gut microbial composition were detected in dogs fed Lactobacillus sakei, as evidenced by an increase in the level of Firmicutes, Spirochaetota, and Patescibacteria, all of them play an important role in maintaining intestinal health. Moreover, a decrease in the level of microorganisms that threaten health, such as Mucispirillum and Clostridium_sensu_stricto_13. The metabolic analysis showed that the Lactobacillus sakei enhanced metabolic pathways such as vitamin B6 metabolism, glutathione metabolism, retinol metabolism, and fatty acid degradation. Our findings suggested that Lactobacillus sakei supplementation had beneficial effects on the growth performance and health status of dogs by improving gut microbiota balance and promoting metabolism. There are an estimated 200 million dogs in China, and the population is continuing to grow at a rapid pace. It is essential to explore an effective way to promote health in dogs. Intestinal diseases, particularly colitis and diarrhea, are common clinical conditions in dogs and are associated with gut microbiota. Lactobacillus sakei, as an important species of probiotics, the relationship between L. sakei and intestinal health in dogs remains unclear. Our study suggests that L. sakei significantly promotes growth performance and health states involving weight gain, regulation of gut microbiota, and metabolism. Overall, our findings shed light on the potential role of L. sakei as an alternative in promoting health in dogs.
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Affiliation(s)
- Lei Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhenwen Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210000, China
| | - Xiaohui Zhu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yuanfeng Zhao
- Institute of Animal Husbandry and Veterinary Science, Guizhou Academy of Agricultural Sciences, Guiyang, 550005, Guizhou, China
| | - Mudassar Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhengrong Lin
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shah Nawaz
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Mengen Xu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Miao Hu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zohaib Ahmed Bhutto
- Faculty of Veterinary and Animal Science, Lasbela University of Agriculture, Water and Marine Science, Uthal, Pakistan
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China.
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Moretti AF, Gamba R, De Antoni G, Peláez ÁL, Golowczyc MA. Probiotic characterization of indigenous lactic acid bacteria isolates from chickens to be used as biocontrol agents in poultry industry. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.17145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana F. Moretti
- Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas Universidad Nacional de La Plata (FCE‐UNLP) La Plata Argentina
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, CONICET‐CICPBA‐UNLP), Facultad de Ciencias Exactas, UNLP La Plata Argentina
| | - Raúl Gamba
- Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas Universidad Nacional de La Plata (FCE‐UNLP) La Plata Argentina
| | - Graciela De Antoni
- Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas Universidad Nacional de La Plata (FCE‐UNLP) La Plata Argentina
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC‐PBA) Buenos Aires Argentina
| | - Ángela León Peláez
- Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas Universidad Nacional de La Plata (FCE‐UNLP) La Plata Argentina
| | - Marina A. Golowczyc
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, CONICET‐CICPBA‐UNLP), Facultad de Ciencias Exactas, UNLP La Plata Argentina
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Trung Thong H, Nu Anh Thu L, Viet Duc H. Potential Substitutes of Antibiotics for Swine and Poultry Production. Vet Med Sci 2022. [DOI: 10.5772/intechopen.106081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Early of the last century, it was detected that antibiotics added to the animal feeds at low doses and for a long time can improve technical performances such as average daily gain and gain-to-feed ratio. Since then, the antibiotics have been used worldwide as feed additives for many decades. At the end of the twentieth century, the consequences of the uses of antibiotics in animal feeds as growth promoters were informed. Since then, many research studies have been done to find other solutions to replace partly or fully to antibiotic as growth promoters (AGPs). Many achievements in finding alternatives to AGPs in which probiotics and direct-fed microorganism, prebiotics, organic acids and their salts, feed enzymes, bacteriophages, herbs, spices, and other plant extractives (phytogenics), mineral and essential oils are included.
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Ajose DJ, Oluwarinde BO, Abolarinwa TO, Fri J, Montso KP, Fayemi OE, Aremu AO, Ateba CN. Combating Bovine Mastitis in the Dairy Sector in an Era of Antimicrobial Resistance: Ethno-veterinary Medicinal Option as a Viable Alternative Approach. Front Vet Sci 2022; 9:800322. [PMID: 35445101 PMCID: PMC9014217 DOI: 10.3389/fvets.2022.800322] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/21/2022] [Indexed: 11/18/2022] Open
Abstract
Bovine mastitis (BM) is the traditional infectious condition in reared cattle which may result in serious repercussions ranging from animal welfare to economic issues. Owing to the high costs associated with preventative practices and therapeutic measures, lower milk output, and early culling, bovine mastitis is accountable for most of the financial losses suffered in cattle farming. Streptococcus agalactiae, Staphylococcus aureus, Streptococcus dysgalactiae and coliform bacteria are the predominant pathogens for bovine mastitis. In addition, the occurrence of BM has been linked to lactation stage and poor management, in the latter case, the poor stabling conditions around udder hygiene. BM occurs throughout the world, with varying rates of Streptococcus agalactiae infection in different regions. Despite the modern techniques, such as the appropriate milking practices that are applied, lower levels of pathogen vulnerability may help to prevent the development of the disease, BM treatment is primarily reliant on antibiotics for both prophylactic and therapeutic purposes. Nevertheless, as a result of the proliferation of bacterial agents to withstand the antibiotic effects, these therapies have frequently proven ineffectual, resulting in persistent BM. Consequently, alternative medicines for the management of udder inflammation have been researched, notably natural compounds derived from plants. This review focuses on BM in terms of its risk factors, pathogenesis, management, the molecular identification of causative agents, as well as the application of ethno-veterinary medicine as an alternative therapy.
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Affiliation(s)
- Daniel Jesuwenu Ajose
- Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Mmabatho, South Africa
| | - Bukola Opeyemi Oluwarinde
- Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Mmabatho, South Africa
| | - Tesleem Olatunde Abolarinwa
- Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Mmabatho, South Africa
| | - Justine Fri
- Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Mmabatho, South Africa
| | - Kotsoana Peter Montso
- Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Mmabatho, South Africa
| | - Omolola Esther Fayemi
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
| | - Adeyemi Oladapo Aremu
- Indigenous Knowledge Systems (IKS) Centre, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
| | - Collins Njie Ateba
- Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Mmabatho, South Africa
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Gyawali I, Zeng Y, Zhou J, Li J, Wu T, Shu G, Jiang Q, Zhu C. Effect of Novel Lactobacillus paracaesi microcapsule on growth performance, gut health and microbiome community of broiler chickens. Poult Sci 2022; 101:101912. [PMID: 35689995 PMCID: PMC9190013 DOI: 10.1016/j.psj.2022.101912] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/25/2022] [Accepted: 04/02/2022] [Indexed: 01/19/2023] Open
Abstract
The beneficial action of probiotics is questioned time and again due to the loss of their survivability under gastrointestinal conditions, particularly gastric acid. In this experiment, a probiotic species was encapsulated to improve its delivery to the distal parts, and its effects on production performance, gut health, and microbial profile in broilers were investigated. A total of 240 Arbor acres (AA) broilers were randomly allotted into 3 treatments with 8 replicate pens per treatment and 10 broilers in each pen for 42 d. Dietary treatments were 1) basal feed without any additives (CON), 2) CON+15 ppm Virginiamycin (ANT), and 3) CON+500 ppm encapsulated Lactobacillus paracaesi (ELP). The result showed that the addition of ELP to the feed did not affect growth performance and carcass characteristics significantly. However, ELP increased the ratio of villus height to crypt depth (P < 0.05) and mRNA expression of ZO-1 (P < 0.05) relative to the CON or ANT group. Similarly, qPCR showed that dietary supplementation of ELP raised gene expression of the anti-inflammatory cytokine and tended to decrease proinflammatory cytokines resulting improve in immunity. Moreover, chicks fed with ELP had lower malondialdehyde (MDA) (P < 0.05) than CON and lower reactive oxygen species (ROS) (P < 0.05) level than ANT in serum. In contrast, the total antioxidant capacity (TAOC) level was tended to increase. The ammonia level of ileum and cecum chyme was decreased (P < 0.05) in the ELP group than CON while the level of propionic acid of cecal content was increased (P < 0.05). 16S rRNA sequencing revealed the dietary treatment modulated the diversity and composition of cecal microflora. At the phylum level, Bacteroidetes was enriched, and Proteobacteria was depleted in the ELP group. At the genus level, ELP increased Bacteroides (P < 0.05) compared to control. The results indicate that oral delivery of probiotics via microcapsule could impart beneficial effects on birds and be used as an alternative to antibiotics.
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Affiliation(s)
- Ishwari Gyawali
- Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation, College of Animal Science, South China Agricultural University, Guangzhou China
| | - Yuxian Zeng
- Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation, College of Animal Science, South China Agricultural University, Guangzhou China
| | - Jingjing Zhou
- Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation, College of Animal Science, South China Agricultural University, Guangzhou China
| | - Jincheng Li
- Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation, College of Animal Science, South China Agricultural University, Guangzhou China
| | - Ting Wu
- Anhui maitebao Bioengineering Co., Ltd, Hefei, China
| | - Gang Shu
- Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation, College of Animal Science, South China Agricultural University, Guangzhou China
| | - Qingyan Jiang
- Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation, College of Animal Science, South China Agricultural University, Guangzhou China
| | - Canjun Zhu
- Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation, College of Animal Science, South China Agricultural University, Guangzhou China.
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Reuben RC, Sarkar SL, Ibnat H, Roy PC, Jahid IK. Novel mono- and multi-strain probiotics supplementation modulates growth, intestinal microflora composition and haemato-biochemical parameters in broiler chickens. Vet Med Sci 2022; 8:668-680. [PMID: 35014219 PMCID: PMC8959300 DOI: 10.1002/vms3.709] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Background The reduction of antimicrobial usage in food‐producing animals necessitates the intense search for novel alternatives, including new probiotic strains with more effective properties in improving growth performance and curtailing diseases in animals. Objective This study evaluated the effects of novel mono‐ and multi‐strain probiotics on the growth performance, intestinal microbiota and haemato‐biochemical parameters of broilers. Methods A total of 160 one‐day‐old Cobb 500 broilers were divided into eight treatment groups with two replicates consisting of (1) basal diet (negative control), (2) basal diet with antibiotic, colistin sulphate, (3) basal diet with commercial probiotic, PROMAX® (positive control), (4) basal diet with Pediococcus acidilactici I5, (5) basal diet with P. pentosaceus I13, (6) basal diet with Enterococcus faecium C14, (7) basal diet with Lactobacillus plantarum C16 and (8) basal diet with the combination of all the four probiotic strains. Birds were kept for 35 days and through oral gavage, 1 ml of 108 study probiotic strains administered on days 3–6, 14 and 18. Results Supplementation with P. pentosaceus I13, L. plantarum C16 or multi‐strain probiotics significantly (p < 0.05) improved the body weight gain and feed conversion ratio with decrease in feed intake and intestinal Enterobacteria counts. There was a significant (p < 0.05) increase in haemoglobin, mean corpuscular volume, total white blood cells, platelets counts and a lowered (p < 0.05) total cholesterol and glucose levels in multi‐strains probiotic supplemented birds. Conclusion The supplementation with novel multi‐strain probiotics improved growth, intestinal health and haemato‐biochemical parameters in broilers and could be used as suitable antibiotic alternatives.
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Affiliation(s)
- Rine Christopher Reuben
- Department of Microbiology, Faculty of Biological Sciences and Technology, Jashore University of Science and Technology, Jashore, Bangladesh.,German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Leipzig University, Leipzig, Germany
| | - Shovon Lal Sarkar
- Department of Microbiology, Faculty of Biological Sciences and Technology, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Habiba Ibnat
- Department of Microbiology, Faculty of Biological Sciences and Technology, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Pravas Chandra Roy
- Department of Microbiology, Faculty of Biological Sciences and Technology, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Iqbal Kabir Jahid
- Department of Microbiology, Faculty of Biological Sciences and Technology, Jashore University of Science and Technology, Jashore, Bangladesh
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Taye Y, Degu T, Fesseha H, Mathewos M. Isolation and Identification of Lactic Acid Bacteria from Cow Milk and Milk Products. ScientificWorldJournal 2021; 2021:4697445. [PMID: 34421398 PMCID: PMC8371643 DOI: 10.1155/2021/4697445] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/31/2021] [Indexed: 12/28/2022] Open
Abstract
Lactic acid bacteria (LAB) have long been consumed by people in several fermented foods such as dairy products. A study was conducted on lactating dairy cows to isolate and characterize LAB from dairy products found in and around Bahir-Dar city, North Western Ethiopia. Milk and milk products were randomly collected from dairy farms, milk vending shops, individual households, and supermarkets for bacteriological investigations. A total of sixteen samples were taken from different sources and cultured on different selective media: de Man, Rogosa, and Sharpe (MRS) agar for Lactobacillus spp.; M17 agar for Lactococcus spp.; Rogasa SL agar for Streptococci spp.; and MRS supplemented with cysteine (0.5%) for Bifidobacteria spp. Different laboratory techniques were implemented for LAB isolation and identification. A total of 41 bacterial isolates were grouped under five different genera of LAB and Bifidobacteria spp. were identified based on the growth morphology on the selective media, growth at a different temperature, gas production from glucose, carbohydrate fermentation, and other biochemical tests. LAB genera such as Lactobacillus, Lactococcus, Leuconostoc, Pediococcus, Streptococcus, and Bifidobacterium spp. were isolated and identified from raw milk, cheese, and yogurt. Based on the current study, the majority of the LAB (24.38%) was isolated from cheese and yogurt. Among these, Lactobacillus, Lactococcus (21.94%), Streptococcus (19.51%), Leuconostoc (14.64%), Bifidobacteria (12.19%), and Pediococcus (7.31%) spp. were also identified from these products. Furthermore, based on the bacterial load count and different identification methodologies, our study revealed that Lactobacillus spp. were the dominant LAB isolated from milk and milk products. As a result, since there are few studies on the isolation and identification of lactic acid bacteria from dairy products in Ethiopia, more research studies are needed to complete the identification and characterization to species level and their possible role as probiotics.
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Affiliation(s)
- Yeshambel Taye
- Raya Kobo Woreda Animal Health Disease Surveillance and Control Expert, Kobo, Ethiopia
| | - Tadesse Degu
- Raya Kobo Woreda Animal Health Expert, Kobo, Ethiopia
| | - Haben Fesseha
- School of Veterinary Medicine, Wolaita Sodo University, P.O Box: 138, Wolaita Sodo, Ethiopia
| | - Mesfin Mathewos
- School of Veterinary Medicine, Wolaita Sodo University, P.O Box: 138, Wolaita Sodo, Ethiopia
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