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Mbatidde I, Ndoboli D, Ayebare D, Muloi D, Roesel K, Ochieng L, Dione M, Tenhagen BA, Biryomumaisho S, Wampande E, Wieland B, Olsen JE, Moodley A. Antimicrobial use and antimicrobial resistance in Escherichia coli in semi-intensive and free-range poultry farms in Uganda. One Health 2024; 18:100762. [PMID: 38910948 PMCID: PMC11190498 DOI: 10.1016/j.onehlt.2024.100762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 05/22/2024] [Indexed: 06/25/2024] Open
Abstract
Livestock associated antimicrobial resistance (AMR) can reduce productivity and cause economic losses, threatening the livelihoods of poor farming communities in low-income settings. We investigated the practices and risk factors for increased antibiotic use, and AMR in Escherichia coli including resistance to human critically important antibiotics like cefotaxime and colistin in semi-intensive and free-range poultry farms in Uganda. Samples and farm management data were collected from 402 poultry farms in two districts between October 2021 to March 2022. Samples were processed to isolate E. coli and to quantify cefotaxime (CTX) and colistin (COL) resistant coliforms. The identification of presumptive E. coli isolated on MacConkey agar without antibiotics, was confirmed by matrix-assisted laser desorption/ionization-time of flight mass spectrometry and subjected to antimicrobial susceptibility testing by disk diffusion using EUCAST guidelines. Our models indicated that antibiotic use was associated with production intensity, and type of feed used. Moreover, semi-intensive farmers had better knowledge on antibiotic use compared to farmers in the free-range system. In semi-intensive farms, 52% harbored COLR and 57% CTXR coliforms. In free-range farms, 54% had COLR and 67% CTXR coliforms. Resistance to tetracycline, ampicillin and enrofloxacin were more frequent in semi-intensive farms compared to the free-range farms. Multi-drug resistant E. coli were identified in both poultry production systems despite different management and antibiotic use practices. There was no significant relationship between antibiotic use and resistance for the six antibiotics tested.
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Affiliation(s)
- Irene Mbatidde
- International Livestock Research Institute, Kampala, Uganda
- National Agricultural Research Organization, Mbarara, Uganda
| | | | - Dreck Ayebare
- International Livestock Research Institute, Kampala, Uganda
| | - Dishon Muloi
- International Livestock Research Institute, Nairobi, Kenya
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
| | | | - Linnet Ochieng
- International Livestock Research Institute, Nairobi, Kenya
| | - Michel Dione
- International Livestock Research Institute, Dakar, Senegal
| | | | - Savino Biryomumaisho
- Department of Veterinary Pharmacy, Clinical and Comparative Medicine, Makerere University, Kampala, Uganda
| | - Eddie Wampande
- Department of Veterinary Pharmacy, Clinical and Comparative Medicine, Makerere University, Kampala, Uganda
| | - Barbara Wieland
- Institute of Virology and Immunology, Bern, Switzerland
- Department of Clinical Veterinary Science, University of Bern, Bern, Switzerland
| | - John Elmerdahl Olsen
- Department of Veterinary and Animal sciences, University of Copenhagen, Copenhagen, Denmark
| | - Arshnee Moodley
- International Livestock Research Institute, Nairobi, Kenya
- Department of Veterinary and Animal sciences, University of Copenhagen, Copenhagen, Denmark
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Khalifa HO, Shikoray L, Mohamed MYI, Habib I, Matsumoto T. Veterinary Drug Residues in the Food Chain as an Emerging Public Health Threat: Sources, Analytical Methods, Health Impacts, and Preventive Measures. Foods 2024; 13:1629. [PMID: 38890858 PMCID: PMC11172309 DOI: 10.3390/foods13111629] [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: 05/05/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 06/20/2024] Open
Abstract
Veterinary medications are necessary for both contemporary animal husbandry and food production, but their residues can linger in foods obtained from animals and pose a dangerous human risk. In this review, we aim to highlight the sources, occurrence, human exposure pathways, and human health effects of drug residues in food-animal products. Following the usage of veterinary medications, pharmacologically active compounds known as drug residues can be found in food, the environment, or animals. They can cause major health concerns to people, including antibiotic resistance development, the development of cancer, teratogenic effects, hypersensitivity, and disruption of normal intestinal flora. Drug residues in animal products can originate from variety of sources, including water or food contamination, extra-label drug use, and ignoring drug withdrawal periods. This review also examines how humans can be exposed to drug residues through drinking water, food, air, and dust, and discusses various analytical techniques for identifying these residues in food. Furthermore, we suggest some potential solutions to prevent or reduce drug residues in animal products and human exposure pathways, such as implementing withdrawal periods, monitoring programs, education campaigns, and new technologies that are crucial for safeguarding public health. This review underscores the urgency of addressing veterinary drug residues as a significant and emerging public health threat, calling for collaborative efforts from researchers, policymakers, and industry stakeholders to develop sustainable solutions that ensure the safety of the global food supply chain.
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Affiliation(s)
- Hazim O. Khalifa
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates; (L.S.); (M.-Y.I.M.); (I.H.)
- Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 3351, Egypt
| | - Lamek Shikoray
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates; (L.S.); (M.-Y.I.M.); (I.H.)
| | - Mohamed-Yousif Ibrahim Mohamed
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates; (L.S.); (M.-Y.I.M.); (I.H.)
- ASPIRE Research Institute for Food Security in the Drylands (ARIFSID), United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates
| | - Ihab Habib
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates; (L.S.); (M.-Y.I.M.); (I.H.)
- ASPIRE Research Institute for Food Security in the Drylands (ARIFSID), United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates
| | - Tetsuya Matsumoto
- Department of Infectious Diseases, Graduate School of Medicine, International University of Health and Welfare, Narita 286-0048, Japan
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Lobo E, Bajagai YS, Kayal A, Ramirez S, Nikolić A, Valientes R, Stanley D. Precision Glycan Supplementation Improves Gut Microbiota Diversity, Performance, and Disease Outbreak Resistance in Broiler Chickens. Animals (Basel) 2023; 14:32. [PMID: 38200763 PMCID: PMC10778076 DOI: 10.3390/ani14010032] [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: 11/02/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 01/12/2024] Open
Abstract
The poultry industry contributes significantly to the global meat industry but faces many production challenges like high-density housing, welfare issues, and pathogenic infections. While antibiotics have commonly been used to treat many of these issues, they are being removed from poultry production globally due to increased microbial resistance. Precision glycans offer a viable alternative to antibiotics by modulating microbial metabolic pathways. In this study, we investigated the effects of precision glycan supplementation on productivity and gut microbiota in broilers. The experiment was conducted in a commercial setting using 32,400 male Ross chickens randomly divided into three sheds with 10,800 birds each. One shed with 12 pen replicates of 900 birds was used as control, while the other two with an equal number of replicates and birds were assigned to precision glycan supplementation. The treatment significantly improved the average daily weight gain and feed conversion ratio, with a significant modification in the abundance of several bacterial taxa in the caecum, ileum, and ileum mucosa microbial communities. There was increased richness and diversity in the caecum, with a reduction in Proteobacteria and an increase in Firmicutes. Richness remained unchanged in the ileum, with an increase in diversity and reduction in pathogenic genera like Clostridium and Escherichia-Shigella. Ileum mucosa showed a lower abundance of mucin degraders and an increased presence of next-generation probiotics. Supplemented birds showed a high level of disease resistance when the farm experienced an outbreak of infectious bronchitis, evidenced by lower mortality. Histological analysis confirmed improvements in the ileum and liver health, where the precision glycan supplementation reduced the area of congested sinusoids compared to the control group in the liver and significantly improved ileum intestinal morphology by increasing crypt depth and surface area. These results collectively suggest that precision glycans offer substantial benefits in poultry production by improving productivity, gut health, and disease resistance.
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Affiliation(s)
- Edina Lobo
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia; (E.L.); (A.K.)
| | - Yadav S. Bajagai
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia; (E.L.); (A.K.)
| | - Advait Kayal
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia; (E.L.); (A.K.)
| | | | - Anja Nikolić
- Faculty of Veterinary Medicine, University of Belgrade, Bulevar Oslobodjenja 18, 11000 Belgrade, Serbia;
| | | | - Dragana Stanley
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia; (E.L.); (A.K.)
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Fuller W, Kapona O, Aboderin AO, Adeyemo AT, Olatunbosun OI, Gahimbare L, Ahmed YA. Education and Awareness on Antimicrobial Resistance in the WHO African Region: A Systematic Review. Antibiotics (Basel) 2023; 12:1613. [PMID: 37998815 PMCID: PMC10669252 DOI: 10.3390/antibiotics12111613] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 10/07/2023] [Accepted: 10/11/2023] [Indexed: 11/25/2023] Open
Abstract
This review documents the status of AMR education and awareness in the WHO African region, as well as specific initiatives by its member states in implementing education and awareness interventions, as a strategic objective of the Global Action Plan on AMR, i.e., improve knowledge and understanding on AMR through effective communication, education, and training. A systematic search was conducted in Google Scholar, PubMed, and African Journals Online Library according to Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines, for articles published in English. Retrieval and screening of articles was performed using a structured search protocol following a pre-set inclusion/exclusion criterion. Eighty-five published articles reporting 92 different studies from 19 Member States met inclusion criteria and were included in the final qualitative synthesis. Nigeria (21) and Ethiopia (16) had most of the studies, while the rest were distributed across the remaining 17 Member States. The majority of the articles were on knowledge, attitude, and practices with regard to AMR and antimicrobial use and most of them documented a general lack and suboptimal knowledge, poor attitude and practices, and widespread self-medication. This review shows low levels of knowledge of AMR coupled with extensive misuse of antimicrobial medicines by different target audiences. These findings underscore the urgent need for enhanced and context-specific educational and positive behavioural change interventions.
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Affiliation(s)
- Walter Fuller
- World Health Organization Regional Office for Africa, Brazzaville P.O. Box 06, Congo; (L.G.); (Y.A.A.)
| | - Otridah Kapona
- Zambia National Public Health Institute, Lusaka 10101, Zambia;
| | - Aaron Oladipo Aboderin
- Department of Medical Microbiology & Parasitology, Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife 220005, Nigeria; (A.O.A.); (A.T.A.); (O.I.O.)
| | - Adeyemi Temitayo Adeyemo
- Department of Medical Microbiology & Parasitology, Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife 220005, Nigeria; (A.O.A.); (A.T.A.); (O.I.O.)
| | - Oluwadamilare Isaiah Olatunbosun
- Department of Medical Microbiology & Parasitology, Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife 220005, Nigeria; (A.O.A.); (A.T.A.); (O.I.O.)
| | - Laetitia Gahimbare
- World Health Organization Regional Office for Africa, Brazzaville P.O. Box 06, Congo; (L.G.); (Y.A.A.)
| | - Yahaya Ali Ahmed
- World Health Organization Regional Office for Africa, Brazzaville P.O. Box 06, Congo; (L.G.); (Y.A.A.)
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Abreu R, Semedo-Lemsaddek T, Cunha E, Tavares L, Oliveira M. Antimicrobial Drug Resistance in Poultry Production: Current Status and Innovative Strategies for Bacterial Control. Microorganisms 2023; 11:microorganisms11040953. [PMID: 37110376 PMCID: PMC10141167 DOI: 10.3390/microorganisms11040953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/20/2023] [Accepted: 04/04/2023] [Indexed: 04/09/2023] Open
Abstract
The world population’s significant increase has promoted a higher consumption of poultry products, which must meet the specified demand while maintaining their quality and safety. It is well known that conventional antimicrobials (antibiotics) have been used in livestock production, including poultry, as a preventive measure against or for the treatment of infectious bacterial diseases. Unfortunately, the use and misuse of these compounds has led to the development and dissemination of antimicrobial drug resistance, which is currently a serious public health concern. Multidrug-resistant bacteria are on the rise, being responsible for serious infections in humans and animals; hence, the goal of this review is to discuss the consequences of antimicrobial drug resistance in poultry production, focusing on the current status of this agroeconomic sector. Novel bacterial control strategies under investigation for application in this industry are also described. These innovative approaches include antimicrobial peptides, bacteriophages, probiotics and nanoparticles. Challenges related to the application of these methods are also discussed.
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Affiliation(s)
- Raquel Abreu
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), 1300-477 Lisboa, Portugal
| | - Teresa Semedo-Lemsaddek
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), 1300-477 Lisboa, Portugal
| | - Eva Cunha
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), 1300-477 Lisboa, Portugal
| | - Luís Tavares
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), 1300-477 Lisboa, Portugal
| | - Manuela Oliveira
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), 1300-477 Lisboa, Portugal
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