2007
DOI: 10.1152/ajpregu.00422.2007
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Ventilatory chemosensitivity of the 1-day-old chicken hatchling after embryonic hypoxia

Abstract: Szdzuy K, Mortola JP. Ventilatory chemosensitivity of the 1-dayold chicken hatchling after embryonic hypoxia. Am J Physiol Regul Integr Comp Physiol 293: R1640-R1649, 2007. First published August 8, 2007; doi:10.1152/ajpregu.00422.2007.-We investigated the effects of sustained embryonic hypoxia on the neonatal ventilatory chemosensitivity. White Leghorn chicken eggs were incubated at 38°C either in 21% O 2 throughout incubation (normoxia, Nx) or in 15% O 2 from embryonic day 5 (hypoxia, Hx), hatching time inc… Show more

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Cited by 18 publications
(6 citation statements)
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“…The absolute values of Tb in our Nx-H0 chicks were lower than those of Ferner and Mortola (2009), which may be related to differences in lineages (broiler × White leghorn) and/or ambient temperature (~33-34°C × 38°C); however, they are similar to those described by Yoneta et al (2007; broilers and White leghorn at 35°C) and Szdzuy and Mortola (2007; White leghorn at 37.5°C). Actually, Tzschentke and Nichelmann (1999) shows Tb varying from about 38.3°C at 30°C to about 40°C at 35°C in chicken hatchlings.…”
Section: Energy Metabolism and Thermoregulation Of Hatchlings (H0) Excontrasting
confidence: 53%
“…The absolute values of Tb in our Nx-H0 chicks were lower than those of Ferner and Mortola (2009), which may be related to differences in lineages (broiler × White leghorn) and/or ambient temperature (~33-34°C × 38°C); however, they are similar to those described by Yoneta et al (2007; broilers and White leghorn at 35°C) and Szdzuy and Mortola (2007; White leghorn at 37.5°C). Actually, Tzschentke and Nichelmann (1999) shows Tb varying from about 38.3°C at 30°C to about 40°C at 35°C in chicken hatchlings.…”
Section: Energy Metabolism and Thermoregulation Of Hatchlings (H0) Excontrasting
confidence: 53%
“…When exposure to hypoxia occurred during the entire duration of incubation, or even during the final week, however, the hypoxic ventilatory response (HVR) of the chicks was blunted. This was a result of reduced ventilatory chemosensitivity (Ferner and Mortola, 2009;Mortola, 2011;Szdzuy and Mortola, 2007). Sustained hypoxic exposure in low-altitude birds also decreased whole animal oxygen consumption rate (VȮ 2 ) and growth rate (Mortola, 2011).…”
Section: Introductionmentioning
confidence: 99%
“…Newly hatched chicks hyperventilate under normoxic conditions after hypoxia (15-16% O 2 ) from the fifth day of incubation through hatching (101). These chicks also exhibit reduced ventilatory responses to hypoxia and hypercapnia.…”
Section: Developmental Plasticity In Respiratory Control: Examplesmentioning
confidence: 99%