Embryonic thermal manipulation affects ventilation, metabolism, thermal control and central dopamine in newly hatched and juvenile chicks

dc.creatorAline Cristina Gonçales Rocha
dc.creatorCaroline Cistina Silva
dc.creatorCamila Linhares Taxini
dc.creatorKaoma Stephani da Costa Silva
dc.creatorVirginia Tereza Morais Lima
dc.creatorMarcos Macari
dc.creatorKenia Bicego
dc.creatorRaphael Escorsim Szawka
dc.creatorLuciane Gargaglioni
dc.date.accessioned2023-07-14T19:28:53Z
dc.date.accessioned2025-09-09T00:37:14Z
dc.date.available2023-07-14T19:28:53Z
dc.date.issued2021
dc.identifier.doihttps://doi.org/10.3389/fphys.2021.699142
dc.identifier.issn1664-042X
dc.identifier.urihttps://hdl.handle.net/1843/56252
dc.languagepor
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofFrontiers in Physiology
dc.rightsAcesso Aberto
dc.subjectTemperatura
dc.subjectVentilação
dc.subjectIncubação
dc.subjectGalinha
dc.subject.otherChicken
dc.subject.otherHypercapnia
dc.subject.otherHypoxia
dc.subject.otherIncubation
dc.subject.otherTemperature
dc.subject.otherVentilation
dc.subject.otherVentilation
dc.titleEmbryonic thermal manipulation affects ventilation, metabolism, thermal control and central dopamine in newly hatched and juvenile chicks
dc.typeArtigo de periódico
local.citation.epage17
local.citation.spage1
local.citation.volume12
local.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.
local.identifier.orcidhttps://orcid.org/0000-0002-3702-6138
local.identifier.orcidhttps://orcid.org/0000-0003-4752-420X
local.identifier.orcidhttps://orcid.org/0000-0003-1990-5224
local.identifier.orcidhttps://orcid.org/0000-0002-6850-7145
local.identifier.orcidhttps://orcid.org/0000-0002-1180-1132
local.identifier.orcidhttps://orcid.org/0000-0002-2639-3469
local.identifier.orcidhttps://orcid.org/0000-0003-4097-5286
local.publisher.countryBrasil
local.publisher.departmentICB - DEPARTAMENTO DE FISIOLOGIA E BIOFÍSICA
local.publisher.initialsUFMG
local.url.externahttps://www.frontiersin.org/articles/10.3389/fphys.2021.699142/full

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