1. Effect of on-farm poultry litter composting processes on physicochemical, biological, and toxicological parameters and reduction of antibiotics and antibiotic-resistant Escherichia coli.
- Author
-
Okada E, Young BJ, Pérez DJ, Pellegrini MC, Carciochi WD, Lavallén CM, Ponce AG, Dopchiz MC, Hernández Guijarro K, Franco MDR, Di Martino AM, and Rizzo PF
- Subjects
- Animals, Poultry, Farms, Escherichia coli genetics, Anti-Bacterial Agents pharmacology, Angiotensin Receptor Antagonists, Manure microbiology, Angiotensin-Converting Enzyme Inhibitors, Composting
- Abstract
Poultry litter is a valuable source of nutrients for crop production, but its use in agriculture can lead to environmental and public health concerns due to the presence of pollutants, antibiotic-resistant bacteria (ARB) and antibiotic-resistant genes (ARGs). We compared the effect of different on-farm poultry litter composting processes on physicochemical, biological, and toxicological parameters, as well as on the occurrence of antibiotics and resistant Escherichia coli. The composting treatments consisted of passively-aerated piles C:N = 19 (PAC
19 ), mechanically-aerated piles C:N = 19 (MAC19 ), and mechanically-aerated piles C:N = 30 (MAC30 ). Poultry litter composting led to a significant reduction of antibiotic residues, enteroparasites and antibiotic resistant E. coli. The conditions of the process, such as extra C source and mechanical aeration influence the quality of the final product. MAC19 is a low-cost effective method to reduce the potential risks associated with poultry litter use in agriculture and produce good quality compost., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)- Published
- 2024
- Full Text
- View/download PDF