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Bioconversion of cow manure through vermicomposting: effects of tylosin concentration on the weight of worms and manure quality.
Ghandehari Yazdi, Farnaz; Mokhtari, Mehdi; Nabi Meibodi, Mohsen; Sefidkar, Reyhane; Hatami, Behnam; Molavi, Fereshteh; Ghafourzadeh, Mahin; Golshiri, Ahmad; Ebrahimi, Ali Asghar.
Afiliación
  • Ghandehari Yazdi F; Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Mokhtari M; Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Nabi Meibodi M; Department of Pharmaceutics, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Sefidkar R; Center for Healthcare Data Modeling, Department of Biostatistics and Epidemiology, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Hatami B; Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Molavi F; Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Ghafourzadeh M; Department of Medical Parasitology & Mycology, Paramedical School, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Golshiri A; Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Ebrahimi AA; Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. ebrahimi20007@gmail.com.
Sci Rep ; 14(1): 12575, 2024 05 31.
Article en En | MEDLINE | ID: mdl-38822086
ABSTRACT
This study investigated batch-fed vermicomposting of cow manure, with a specific focus on assessing the effects of tylosin on the weight of earthworms and the overall quality of the resulting manure. Five reactors, including three concentrations of tylosin (50, 100, and 150 mg/kg) and two control reactors, were employed. Residual tylosin concentrations were measured using high-performance liquid chromatography (HPLC). Quality parameters such as pH, temperature, volatile solids (VS), organic carbon content (OCC), electrical conductivity (EC), ash content, C/N ratio, total Kjeldahl nitrogen (TKN), and microbial content were evaluated. The toxicity and maturity of vermicompost were assessed by determining the germination index (GI). The study also monitored variations in the earthworm's weight. The results demonstrated a decreasing trend in VS, OCC, C/N, and fecal coliforms, along with increased pH, EC, ash content, and TKN during the vermicomposting process. Furthermore, investigations revealed significant reductions in the reactors with tylosin concentrations of 50, 100, and 150 mg/kg, resulting in the removal of 98%, 90.48%, and 89.38% of the initial tylosin, respectively. This result confirms the faster removal of tylosin in reactors with lower concentrations. Degradation of tylosin also conforms to first-order kinetics. The findings showed a significant influence of tylosin on the weight of Eisenia fetida earthworms and the lowest antibiotic concentration led to the highest weight gain. Finally, the high percentage of germination index (90-100%) showed that the quality and maturity of vermicompost is by national and international standards.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oligoquetos / Tilosina / Compostaje / Estiércol Límite: Animals Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Irán Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oligoquetos / Tilosina / Compostaje / Estiércol Límite: Animals Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Irán Pais de publicación: Reino Unido