Copper and Antimicrobial Residues in Piglets' Organs
Author Information
Author(s): Donato Maria Manuel, Cardoso Olga, Assis Gabriela, Henriques Sara Carolina, Freitas Andreia, Ramos Fernando
Primary Institution: Universidade de Coimbra
Hypothesis
Is there a correlation between copper and antimicrobial use and the resistance to copper and antimicrobials in Escherichia coli from piglets’ faeces?
Conclusion
The study found no significant relationship between copper tolerance and antimicrobial resistance in E. coli isolates from piglets.
Supporting Evidence
- Antimicrobial residues were detected in a significant number of livers and kidneys.
- Copper concentrations in the liver were within adequate ranges, while those in the kidney exceeded recommended levels.
- E. coli isolates from piglet faeces exhibited high antimicrobial drug resistance.
- There was no clear link between copper exposure and antimicrobial resistance.
Takeaway
This study looked at how much copper and antibiotics are in piglets' organs and found that copper doesn't seem to help bacteria resist antibiotics.
Methodology
The study involved collecting liver, kidney, and faeces samples from piglets, quantifying copper and antimicrobial residues, and assessing E. coli resistance.
Limitations
Copper concentration was not determined in the faeces, which could provide additional insights into the relationship between copper and antimicrobial resistance.
Participant Demographics
Healthy piglets weighing 5–8 kg from an abattoir in Portugal.
Statistical Information
P-Value
0.05
Confidence Interval
[0–25.2] mg/kg
Digital Object Identifier (DOI)
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