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Spatial and temporal variability of enthalpy and its influence on the cloacal temperature of broilers

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dc.contributor.authorSilva, M.A.J.G.
dc.contributor.authorSantos, L.M.D.
dc.contributor.authorRibeiro, J.C.D.
dc.contributor.authorBarbari, M.
dc.contributor.authorBecciolini, V.
dc.contributor.authorNaves, L.P.
dc.contributor.authorFerraz, P.F.P.
dc.date.accessioned2024-06-28T09:55:39Z
dc.date.available2024-06-28T09:55:39Z
dc.date.issued2024
dc.descriptionReceived: January 15th, 2024 ; Accepted: June 5th, 2024 ; Published: June 20th, 2024 ; Correspondence: patrícia.ponciano@ufla.breng
dc.description.abstractStrategies aimed at mitigating heat stress conditions pose a challenge for the poultry industry operating in tropical climate zones. The primary aim of this research was to characterize and analyze the specific enthalpy of air (h, in kJ kg of dry air−1) in a broiler house using geostatistical techniques. In addition, its relationship with the cloacal temperature (tcloacal, °C) of the broilers was evaluated. The study was carried out in Lavras, Minas Gerais, Brazil. A total of 720 Cobb-500 broilers were raised from 1 to 42 days old. When the broilers were 7, 21, 35 and 42 days old, the dry bulb temperature (tdb, °C) and relative air humidity (RH, %) were recorded at 08:00 a.m. and 01:00 p.m. by seven sensors distributed throughout the installation, and tcloacal measured. Subsequently, h computed, and the data were examined through kriging interpolation. The tcloacal data were superimposed on the h maps of the facility. The spatial distribution of h inside the aviary (box) and temporal distribution (time and days) were characterized, and its variability was visualized. Tcloacal was directly related to the spatial as well temporal distribution of h, providing information about the thermal influence on production environment and the physiological responses of broilers.eng
dc.identifier.issn2228-4907
dc.identifier.publicationAgronomy Research, 2024, vol. 22, no. 2, pp. 982–1000eng
dc.identifier.urihttp://hdl.handle.net/10492/9428
dc.identifier.urihttps://doi.org/10.15159/ar.24.057
dc.publisherEstonian University of Life Scienceseng
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)eng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectbody temperatureeng
dc.subjectgeostatisticseng
dc.subjectheat stresseng
dc.subjectthermal comforteng
dc.subjectarticleseng
dc.titleSpatial and temporal variability of enthalpy and its influence on the cloacal temperature of broilerseng
dc.typeinfo:eu-repo/semantics/articleeng

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2024, Vol. 22, No. 2