ArticleJournal of animal science2021
Antibiotic resistance, antimicrobial residues, and bacterial community diversity in pasture-raised poultry, swine, and beef cattle manures.
Article in Journal of animal science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 35 citations in OpenAlex.
- Antimicrobial-resistant Escherichia Coli and Salmonella in poultry production and spread and effect in the one health framework.Poultry science · 2026Review
- Impact of Functional Feed Additives and Lower Antibiotic Use on Poultry Meat Quality and Consumer Perception.Foods (Basel, Switzerland) · 2026Review
- Animal type outweighs growth stage in shaping the active antibiotic resistome in livestock manure.Frontiers in microbiology · 2026Article
- Antibiotic Residues in Milk as a Consequence of Mastitis Treatment: Balancing Animal Welfare and One Health Risks.Veterinary sciences · 2025Review
- Quantifying Dissemination of Antibiotic Resistance Genes in Air from a Dairy Farm and Swine Farm.ACS ES&T air · 2025Article
- Occurrence of microplastic, antibiotics, hormones, and heavy metals in livestock and poultry manure in west iran.Scientific reports · 2025Article
- Environmental fate of antibiotic resistance genes in livestock farming.Archives of microbiology · 2025Review
- Characterization of antibiotic resistance genes in soils from agroecosystems of the Brazilian Amazon.Frontiers in microbiology · 2025Article
- Addressing the global challenge of bacterial drug resistance: insights, strategies, and future directions.Frontiers in microbiology · 2025Review
- Occurrence and dissemination of antibiotic resistance genes in the Yellow River basin: focused on family farms.Environmental science and pollution research international · 2024Article
- Microbial antibiotic resistance genes across an anthropogenic gradient in a Canadian High Arctic watershed.Sustainable microbiology · 2024Article
- Tetracycline, Sulfonamide, and Erythromycin Residues in Beef, Eggs, and Honey Sold as "Antibiotic-Free" Products in East Tennessee (USA) Farmers' Markets.Veterinary sciences · 2023Article
- Antimicrobial Resistant Coagulase-Negative Staphylococci Carried by House Flies (Antibiotics (Basel, Switzerland) · 2023Article
- Rumen and Fecal Microbiota Characteristics of Qinchuan Cattle with Divergent Residual Feed Intake.Microorganisms · 2023Article
- Potential Causes of Spread of Antimicrobial Resistance and Preventive Measures in One Health Perspective-A Review.Infection and drug resistance · 2023Review
- Antibiotic Resistance Genes Occurrence in Conventional and Antibiotic-Free Poultry Farming, Italy.Animals : an open access journal from MDPI · 2022Article
- The OMICS of methane emissions.Journal of animal science · 2021Article
- Efficacy of phage therapy in pigs.Journal of animal science · 2021Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Animal manure can be a source of antibiotic-resistant genes (ARGs) and pharmaceutical residues; however, few studies have evaluated the presence of ARG in pasture-raised animal production systems. The objective of this study was to examine changes in microbiome diversity and the presence of antibiotic residues (ABRs) on three farms that contained a diverse range of animal species: pasture-raised poultry (broiler and layer), swine, and beef cattle. Total bacterial communities were determined using 16S rRNA microbiome analysis, while specific ARGs (sulfonamide [Sul; Sul1] and tetracycline [Tet; TetA]) were enumerated by qPCR (real-time PCR). Results indicated that the ARG abundances (Sul1 [P < 0.05] and TetA [P < 0.001]) were higher in layer hen manures (16.5 × 10-4 and 1.4 × 10-4 µg kg-1, respectively) followed by broiler chickens (2.9 × 10-4 and 1.7 × 10-4 µg kg-1, respectively), swine (0.22 × 10-4 and 0.20 × 10-4 µg kg-1, respectively) and beef cattle (0.19 × 10-4 and 0.02 × 10-4 µg kg-1, respectively). Average fecal TetA ABR tended to be greater (P = 0.09) for broiler chickens (11.4 µg kg-1) than for other animal species (1.8 to 0.06 µg kg-1), while chlortetracycline, lincomycin, and oxytetracycline ABRs were similar among animal species. Furthermore, fecal microbial richness and abundances differed significantly (P < 0.01) both among farms and specific species of animal. This study indicated that the microbial diversity, ABR, ARG concentrations, and types in feces varied from farm-to-farm and from animal species-to-animal species. Future studies are necessary to perform detailed investigations of the horizontal transfer mechanism of antibiotic-resistant microorganisms (ARMs) and ARG.
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