Air velocity and exposure time to ventilation affect body surface and rectal temperature of broiler chickens
dc.contributor.author | Furlan, R. L. | |
dc.contributor.author | Macari, Marcos [UNESP] | |
dc.contributor.author | Secato, E. R. | |
dc.contributor.author | Guerreiro, JR | |
dc.contributor.author | Malheiros, E. B. | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-20T13:13:29Z | |
dc.date.available | 2014-05-20T13:13:29Z | |
dc.date.issued | 2000-03-01 | |
dc.description.abstract | Increasing air movement over poultry by using fans (ventilation) has become an accepted means of reducing environmental heat stress over the last several years. The purpose of this study was to evaluate the effect of air velocity and exposure time to ventilation on body surface and rectal temperature of broiler chickens. Male broiler chickens aged 36-42 days were placed in individual wire cages and exposed to five different air velocities (5.7, 4.2, 3.1, 2.4, or 1.8 m/sec). Throughout the experiment head, back, leg, and rectal temperatures were monitored every 10 min during a 30-min period for each air velocity. The data showed that exposure time to the wind affected (P<.05) leg and body temperature, with a rapid reduction being observed during the first 10 min. There was a reduction in leg temperature with air velocity of 2 m/sec; however, air velocity lower than 4.5 m/sec was not effective in decreasing head and back temperature. The results suggest that air velocity of 2 m/sec, in air temperature of 29 degrees C, improves heat loss in the birds. The data also indicate that exposure time to ventilation seems to be a critical point in the maintenance of bird thermal homeostasis. | en |
dc.description.affiliation | UNESP, Fac Ciências Agr & Vet, Dept Morphol & Fisiol Anim, BR-14870000 Jaboticabal, SP, Brazil | |
dc.description.affiliation | UNESP, Fac Ciências Agr & Vet, Dept Ciências Exatas, BR-14870000 Jaboticabal, SP, Brazil | |
dc.description.affiliationUnesp | UNESP, Fac Ciências Agr & Vet, Dept Morphol & Fisiol Anim, BR-14870000 Jaboticabal, SP, Brazil | |
dc.description.affiliationUnesp | UNESP, Fac Ciências Agr & Vet, Dept Ciências Exatas, BR-14870000 Jaboticabal, SP, Brazil | |
dc.format.extent | 1-5 | |
dc.identifier | http://japr.fass.org/content/9/1/1.abstract | |
dc.identifier.citation | Journal of Applied Poultry Research. Athens: Applied Poultry Science Inc., v. 9, n. 1, p. 1-5, 2000. | |
dc.identifier.issn | 1056-6171 | |
dc.identifier.lattes | 5713558572926669 | |
dc.identifier.lattes | 4726596193949022 | |
dc.identifier.lattes | 0806409484159642 | |
dc.identifier.orcid | 0000-0001-9549-0329 | |
dc.identifier.uri | http://hdl.handle.net/11449/1251 | |
dc.identifier.wos | WOS:000087708900001 | |
dc.language.iso | eng | |
dc.publisher | Applied Poultry Science Inc | |
dc.relation.ispartof | Journal of Applied Poultry Research | |
dc.relation.ispartofjcr | 1.064 | |
dc.relation.ispartofsjr | 0,585 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | air velocity | pt |
dc.subject | Body temperature | pt |
dc.subject | broiler chicken | pt |
dc.subject | heat stress | pt |
dc.subject | surface temperature | pt |
dc.title | Air velocity and exposure time to ventilation affect body surface and rectal temperature of broiler chickens | en |
dc.type | Artigo | |
dcterms.license | http://japr.fass.org/site/misc/Rights_Permissions.xhtml | |
dcterms.rightsHolder | Applied Poultry Science Inc | |
unesp.author.lattes | 5713558572926669 | |
unesp.author.lattes | 4726596193949022 | |
unesp.author.lattes | 0806409484159642[1] | |
unesp.author.orcid | 0000-0002-6850-7145[2] | |
unesp.author.orcid | 0000-0001-9549-0329[1] | |
unesp.campus | Universidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal | pt |
unesp.department | Ciências Exatas - FCAV | pt |
unesp.department | Morfologia e Fisiologia Animal - FCAV | pt |
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