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Morphology, chemical composition, and bacterial concentration of airborne particulate matter in rabbit farms

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Morphology, chemical composition, and bacterial concentration of airborne particulate matter in rabbit farms

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dc.contributor.author Adell Sales, Elisa es_ES
dc.contributor.author Estellés Barber, Fernando es_ES
dc.contributor.author Torres, Antonio G. es_ES
dc.contributor.author Cambra López, María es_ES
dc.date.accessioned 2013-01-09T12:18:16Z
dc.date.issued 2012-01-28
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/18351
dc.description.abstract [EN] Livestock houses are major sources of airborne particulate matter (PM), which can originate from manure, feed, feathers, skin and bedding and may contain and transport microorganisms. Improved knowledge of particle size, morphology, chemical and microbiological composition of PM in livestock houses can help identify major sources of PM and contribute to the development of appropriate source- specific reduction techniques. In rabbit production systems, however, there is limited information on specific particle characteristics. The objective of this study was to characterise airborne PM in rabbit farms in terms of morphology, chemical compositions and bacterial concentration in different size fractions. Size-fractioned PM was sampled in the air of 2 rabbit farms, 1 for fattening rabbits and 1 for reproductive does, using a virtual cascade impactor, which simultaneously collected total suspended PM (TSP), PM10 and PM2.5 size fractions. Airborne PM samples were examined by light microscopy and scanning electron microscopy combined with energy dispersive X-ray analysis. Representative samples from potential sources of PM were also collected and examined. Additionally, a methodology to extract bacteria from the collected samples of airborne PM was developed to determine the bacterial concentration per PM size fraction. Results showed that airborne PM in rabbit farms is highly complex in particle morphology, especially in size. Broken skin flakes, disintegrated particles from feed or faecal material from mechanical fracture are the main sources of airborne PM in rabbit farms. Major elements found in rabbit airborne PM were S, Ca, Mg, Na and Cl. Bacterial concentrations ranged from 1.7¿104 to 1.6¿106 colony forming units (CFU)/m3 (TSP); from 3.6¿103 to 3.0¿104 CFU/m3 (PM10); and from 3.1¿103 to 1.6¿104 CFU/m3 (PM2.5). Our results will improve the knowledge on essential particle characteristics necessary to understand PM¿s origin in rabbit farms and contribute to its reduction. es_ES
dc.description.sponsorship The authors thank the Spanish Ministry of Science and Innovation for the economic support to conduct this study (Project GasFarm AGL2009-0067) and the Campus de Excelencia Internacional of the Universitat Politecnica de Valencia. The authors are also grateful to the farmers and staff at the farms who collaborated during sampling periods. We thank the Electronic Microscopy Service (Universitat Politecnica de Valencia) for expert technical assistance during SEM analysis. en_EN
dc.description.tableofcontents 252
dc.language Inglés es_ES
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation MICINN/AGL2009-0067
dc.relation.ispartof World Rabbit Science
dc.rights Reserva de todos los derechos es_ES
dc.subject Air quality es_ES
dc.subject Housing es_ES
dc.subject Bioaerosol es_ES
dc.subject Dust es_ES
dc.subject Rabbit es_ES
dc.subject Sem-edx es_ES
dc.subject Electron Microscopy Service of the UPV es_ES
dc.title Morphology, chemical composition, and bacterial concentration of airborne particulate matter in rabbit farms es_ES
dc.type Artículo es_ES
dc.date.updated 2013-01-09T11:03:09Z
dc.identifier.doi 10.4995/wrs.2012.1211
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Ciencia y Tecnología Animal - Institut de Ciència i Tecnologia Animal es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural es_ES
dc.description.bibliographicCitation Adell Sales, E.; Estellés Barber, F.; Torres, AG.; Cambra López, M. (2012). Morphology, chemical composition, and bacterial concentration of airborne particulate matter in rabbit farms. World Rabbit Science. 20(4). doi:10.4995/wrs.2012.1211 es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.2012.1211
dc.description.upvformatpinicio 241
dc.description.volume 20
dc.description.issue 4
dc.identifier.eissn 1989-8886
dc.contributor.funder Ministerio de Ciencia e Innovación (MICINN)


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