- -

Assessing ventilation rate measurements in a mechanically ventilated laying hen facility

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Assessing ventilation rate measurements in a mechanically ventilated laying hen facility

Show simple item record

Files in this item

dc.contributor.author Rosa, E. es_ES
dc.contributor.author Arriaga, H. es_ES
dc.contributor.author Calvet, S. es_ES
dc.contributor.author Merino, Pilar es_ES
dc.date.accessioned 2020-01-11T21:01:47Z
dc.date.available 2020-01-11T21:01:47Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0032-5791 es_ES
dc.identifier.uri http://hdl.handle.net/10251/134319
dc.description.abstract [EN] Gaseous emission in laying hen facilities affects animal production performance and the environment. Emission is ruled by gas concentration and ventilation rate (VR), which are the key parameters to estimate precise emission factors. In this work, VR were assessed in a mechanical ventilated laying hen facility under Mediterranean climate conditions. The study was performed during a complete production cycle from July 2015 to October 2016. Direct hot wire anemometer (HWA) and fan rotational speed methods, and indirect CO2 mass balance method were used to assess the VR. Mean VR was 5.3 +/- 2.9 m(3) h(-1) hen(-1) for the HWA method. The mean uncertainty of VR based on the HWA method was 8.5%, and it varied among ventilation stages from 2.3 to 12.8%. Uncertainty was higher in warm season (9.6%) than in cold season (5.4%). In relation to fan rotational speed method, mean VR was 5.9 +/- 3.3 m(3) h(-1) hen(-1), which accounts for 8.3% more than the HWA method. According to the results, the fan rotational speed method would be less sensitive than the HWA method for assessing VR. VR was 6.3 +/- 2.1 m(3) h(-1) hen(-1) for the CO2 balance method, which estimated lower VR values in warm season compared to the laser tachometer (LT) method (-5%) but higher values compared to the HWA method (+5%). In contrast, it estimated higher values in cold season compared to the HWA method (+23%) and LT method (+17%). Correlation analysis showed a strong correlation between the CO2 balance method and both direct methods (R = 0.85 and 0.86 for HWA and LT, respectively). es_ES
dc.description.sponsorship Eduardo Rosa held a grant from the Ph.D. student's research program of the Department of Economic Development and Competitiveness of the Basque Government. Haritz Arriaga held a postdoctoral grant of the Spanish Institute for Agricultural Research and Experimentation (INIA). We are also grateful to the University of the Basque Country for the computer facilities. es_ES
dc.language Inglés es_ES
dc.publisher Oxford University Press es_ES
dc.relation.ispartof Poultry Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Fan performance es_ES
dc.subject Laying hen es_ES
dc.subject Mass balance es_ES
dc.subject Rotational fan speed es_ES
dc.subject Ventilation rate es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Assessing ventilation rate measurements in a mechanically ventilated laying hen facility es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3382/ps/pey524 es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.description.bibliographicCitation Rosa, E.; Arriaga, H.; Calvet, S.; Merino, P. (2018). Assessing ventilation rate measurements in a mechanically ventilated laying hen facility. Poultry Science. 98(3):1211-1221. https://doi.org/10.3382/ps/pey524 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3382/ps/pey524 es_ES
dc.description.upvformatpinicio 1211 es_ES
dc.description.upvformatpfin 1221 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 98 es_ES
dc.description.issue 3 es_ES
dc.relation.pasarela S\385920 es_ES
dc.contributor.funder Gobierno Vasco/Eusko Jaurlaritza es_ES
dc.contributor.funder Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria es_ES
dc.contributor.funder Universidad del País Vasco/Euskal Herriko Unibertsitatea es_ES


This item appears in the following Collection(s)

Show simple item record