Academic Journal

Antibiotic residues in cattle manure increase greenhouse gas emissions during solid storage in Kenya.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Antibiotic residues in cattle manure increase greenhouse gas emissions during solid storage in Kenya.
Συγγραφείς: Chebet A; International Livestock Research Institute, P.O. Box 30709, Nairobi, 00100, Kenya; School of Agriculture and Biotechnology, University of Eldoret, P.O. Box 1125, Eldoret, 30100, Kenya., Kebeney S; School of Agriculture and Natural Resources, Moi University, P.O. Box 3900, Eldoret, 30100, Kenya., Zhu Y; International Livestock Research Institute, P.O. Box 30709, Nairobi, 00100, Kenya., Oduor CO; International Livestock Research Institute, P.O. Box 30709, Nairobi, 00100, Kenya., Keino L; International Livestock Research Institute, P.O. Box 30709, Nairobi, 00100, Kenya; Center for International Forestry Research and World Agroforestry (CIFOR-ICRAF), United Nations Ave, Nairobi, Kenya., Muloi DM; International Livestock Research Institute, P.O. Box 30709, Nairobi, 00100, Kenya; Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 3BX, United Kingdom., Ng'etich W; School of Agriculture and Biotechnology, University of Eldoret, P.O. Box 1125, Eldoret, 30100, Kenya., Moodley A; International Livestock Research Institute, P.O. Box 30709, Nairobi, 00100, Kenya; Department of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 15, Frederiksberg C, 1870, Denmark., Leitner SM; International Livestock Research Institute, P.O. Box 30709, Nairobi, 00100, Kenya. Electronic address: s.leitner@cgiar.org.
Πηγή: Journal of environmental management [J Environ Manage] 2026 Jul 31; Vol. 413, pp. 130278. Date of Electronic Publication: 2026 Jun 25.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Academic Press Country of Publication: England NLM ID: 0401664 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-8630 (Electronic) Linking ISSN: 03014797 NLM ISO Abbreviation: J Environ Manage Subsets: MEDLINE
Imprint Name(s): Original Publication: London ; New York, Academic Press.
Ιατρικοί όροι (MeSH): Manure*/analysis , Greenhouse Gases*/analysis , Anti-Bacterial Agents*, Methane/analysis ; Animals ; Cattle ; Kenya ; Fertilizers ; Nitrous Oxide ; Tylosin ; Carbon Dioxide ; Enrofloxacin ; Oxytetracycline
Περίληψη: The increasing use of antibiotics in livestock farming raises concerns about environmental impacts. This study examined the effects of three commonly used veterinary antibiotics - Tylosin, Enrofloxacin, and Oxytetracycline - on manure greenhouse gas (GHG) emissions and fertilizer quality during solid manure storage. Aliquots of fresh cattle manure (10 kg) were either spiked with high or low concentrations of each antibiotic, or left untreated as Control, then incubated in open buckets for 110 days to simulate manure heaping. Emissions of CO2, CH4, and N2O were measured using a static chamber with a laser spectrometer. Tylosin (High and Low) treatments and High-dose Enrofloxacin significantly increased manure N2O emissions (2.1 ± 0.2 to 2.5 ± 0.4 %), exceeding the IPCC default values of 1 % manure-N. All antibiotic treatments increased CH4 emission factors (6.4 ± 0.7 to 14.2 ± 1.1 g CH4 kg-1 VS) compared to the Control (2.2 ± 0.5 g CH4 kg-1 VS) and the IPCC default value (4.44 g CH4 kg-1 VS). Overall, antibiotic residues increased the global warming potential (GWP) of stored solid manure by 218 % compared to the Control. Despite the slightly greater nitrogen losses from increased N2O emissions, the final fertilizer quality of the manure remained unaffected by the antibiotic treatments. Besides health concerns related to antimicrobial resistance, our findings on environmental impacts call for a One Health approach to promote sustainable antibiotic use in livestock production.
(Copyright © 2026 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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.
Contributed Indexing: Keywords: AMR; Antimicrobials; CH(4); CO(2); Manure management; N(2)O; Sub-saharan africa; Veterinary antibiotics
Substance Nomenclature: 0 (Manure)
0 (Anti-Bacterial Agents)
0 (Greenhouse Gases)
OP0UW79H66 (Methane)
0 (Fertilizers)
K50XQU1029 (Nitrous Oxide)
YEF4JXN031 (Tylosin)
142M471B3J (Carbon Dioxide)
3DX3XEK1BN (Enrofloxacin)
X20I9EN955 (Oxytetracycline)
Entry Date(s): Date Created: 20260625 Date Completed: 20260717 Latest Revision: 20260717
Update Code: 20260717
DOI: 10.1016/j.jenvman.2026.130278
PMID: 42349289
Βάση Δεδομένων: MEDLINE
Περιγραφή
ISSN:1095-8630
DOI:10.1016/j.jenvman.2026.130278