Prevalence of Multidrug-Resistant Bacteria (Enteropathogens) Recovered from a Blend of Pig Manure and Pinewood Saw Dust during Anaerobic Co-Digestion in a Steel Biodigester
Bibliographic Data
| ID | 15470420 |
|---|---|
| Authors | Christy E Manyi-Loh (0000-0003-3165-6902, Central University of Technology, corresponding author), Anthony I Okoh (0000-0002-9770-085X, University of Fort Hare), Ryk Lues (0000-0003-0047-4209, Central University of Technology) |
| Year | 2023 |
| Volume | 20 |
| Issue | 2 |
| Pages | 984-984 |
| Publication date | 2023-01-05 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph20020984 |
| PMID | 36673737 |
| OpenAlex | W4313558796 |
| Language | EN |
| References cited | 5 |
South Africa adopts intensive livestock farming, embracing the employment of huge quantities of antibiotics to meet the increased demand for meat. Therefore, bacteria occurring in the animal products and manure might develop antibiotic resistance, a scenario which threatens public health. The study investigated the occurrence of Gram-negative bacteria from eighteen pooled samples withdrawn from a single-stage steel biodigester co-digesting pig manure (75%) and pine wood saw dust (25%). The viable counts for each bacterium were determined using the spread plate technique. The bacterial isolates were characterised based on cultural, morphological and biochemical characteristics, using the Analytical Profile Index 20 e test kit. In addition, isolates were characterised based on susceptibility to 14 conventional antibiotics via the disc diffusion method. The MAR index was calculated for each bacterial isolate. The bacterial counts ranged from 104 to 106 cfu/mL, indicating manure as a potential source of contamination. Overall, 159 bacterial isolates were recovered, which displayed diverse susceptibility patterns with marked sensitivity to amoxicillin (100% E. coli), streptomycin (96.15% for Yersinia spp.; 93.33% for Salmonella spp.) and 75% Campylobacter spp. to nitrofurantoin. Varying resistance rates were equally observed, but a common resistance was demonstrated to erythromycin (100% of Salmonella and Yersinia spp.), 90.63% of E. coli and 78.57% of Campylobacter spp. A total of 91.19% of the bacterial isolates had a MAR index > 0.2, represented by 94 MAR phenotypes. The findings revealed multidrug resistance in bacteria from the piggery source, suggesting they can contribute immensely to the spread of multidrug resistance; thus, it serves as a pointer to the need for the enforcement of regulatory antibiotic use in piggery farms. Therefore, to curb the level of multidrug resistance, the piggery farm should implement control measures in the study area
Agronomy · Amoxicillin · Antibiotic resistance · Antibiotics · Bacteria · Biology · Campylobacter · Manure · Multiple drug resistance · Salmonella · Streptomycin · Veterinary medicine · Clostridium difficile and Clostridium perfringens research · Gut microbiota and health · Medicine · Pharmaceutical and Antibiotic Environmental Impacts · Microbiology
Identification and Characterization of Campylobacter Species in Livestock, Humans, and Water in Livestock Owning Households of Peri-urban Addis Ababa, Ethiopia
How antibiotics are used in pig farming
The socioeconomic burden of antibiotic resistance in conflict-affected settings and refugee hosting countries
Inactivation of Selected Bacterial Pathogens in Dairy Cattle Manure by Mesophilic Anaerobic Digestion (Balloon Type Digester)
Drivers of meat consumption
| Highly cited | No |
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