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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/56252
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dc.creatorAline Cristina Gonçales Rochapt_BR
dc.creatorCaroline Cistina Silvapt_BR
dc.creatorCamila Linhares Taxinipt_BR
dc.creatorKaoma Stephani da Costa Silvapt_BR
dc.creatorVirginia Tereza Morais Limapt_BR
dc.creatorMarcos Macaript_BR
dc.creatorKenia Bicegopt_BR
dc.creatorRaphael Escorsim Szawkapt_BR
dc.creatorLuciane Gargaglionipt_BR
dc.date.accessioned2023-07-14T19:28:53Z-
dc.date.available2023-07-14T19:28:53Z-
dc.date.issued2021-
dc.citation.volume12pt_BR
dc.citation.spage1pt_BR
dc.citation.epage17pt_BR
dc.identifier.doihttps://doi.org/10.3389/fphys.2021.699142pt_BR
dc.identifier.issn1664-042Xpt_BR
dc.identifier.urihttp://hdl.handle.net/1843/56252-
dc.description.resumoThe first third of incubation is critical for embryonic development, and environmental changes during this phase can affect the physiology and survival of the embryos. We evaluated the effects of low (LT), control (CT), and high (HT) temperatures during the first 5 days of incubation on ventilation (V. E), body temperature (Tb), oxygen consumption (V. O2), respiratory equivalent (V. E/V. O2), and brain monoamines on 3-days-old (3d) and 14-days-old (14d) male and female chickens. The body mass of LT animals of both ages and sexes was higher compared to HT and CT animals (except for 3d males). The heart mass of 14d HT animals was higher than that of CT animals. Thermal manipulation did not affect V. E, V. O2 or V. E/V. O2 of 3d animals in normoxia, except for 3d LT males V. E, which was lower than CT. Regarding 14d animals, the HT females showed a decrease in V. E and V. O2 compared to CT and LT groups, while the HT males displayed a lower V. O2 compared to CT males, but no changes in V. E/V. O2. Both sexes of 14d HT chickens presented a greater Tb compared to CT animals. Thermal manipulations increased the dopamine turnover in the brainstem of 3d females. No differences were observed in ventilatory and metabolic parameters in the 3d animals of either sexes, and 14d males under 7% CO2. The hypercapnic hyperventilation was attenuated in the 14d HT females due to changes in V. O2, without alterations in V. E. The 14d LT males showed a lower V. E, during hypercapnia, compared to CT, without changes in V. O2, resulting in an attenuation in V. E/V. O2. During hypoxia, 3d LT females showed an attenuated hyperventilation, modulated by a higher V. O2. In 14d LT and HT females, the increase in V. E was greater and the hypometabolic response was attenuated, compared to CT females, which resulted in no change in the V. E/V. O2. In conclusion, thermal manipulations affect hypercapnia-induced hyperventilation more so than hypoxic challenge, and at both ages, females are more affected by thermal manipulation than males.pt_BR
dc.languageporpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICB - DEPARTAMENTO DE FISIOLOGIA E BIOFÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofFrontiers in Physiologypt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectChickenpt_BR
dc.subjectHypercapniapt_BR
dc.subjectHypoxiapt_BR
dc.subjectIncubationpt_BR
dc.subjectTemperaturept_BR
dc.subjectVentilationpt_BR
dc.subjectVentilationpt_BR
dc.subject.otherTemperaturapt_BR
dc.subject.otherVentilaçãopt_BR
dc.subject.otherIncubaçãopt_BR
dc.subject.otherGalinhapt_BR
dc.titleEmbryonic thermal manipulation affects ventilation, metabolism, thermal control and central dopamine in newly hatched and juvenile chickspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.frontiersin.org/articles/10.3389/fphys.2021.699142/fullpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-3702-6138pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-4752-420Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1990-5224pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6850-7145pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-1180-1132pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2639-3469pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-4097-5286pt_BR
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