The motility of the chicken embryo: Energetic cost and effects of hypoxia

Highlights • The cost of embryonic motility was computed in chicken embryos (day 10–18) from the pressure produced and the corresponding changes in oxygen consumption. • At all ages, it was an almost negligible fraction of the embryo's energy budget. • At day 18, hypercapnia and cold respective...

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Bibliographic Details
Published in:Respiratory physiology & neurobiology 2013-08, Vol.188 (2), p.172-179
Main Authors: Mortola, Jacopo P, Louis, Alyssa S, Simeonova, Marina, Toro Velasquez, Paula A
Format: Article
Language:English
Subjects:
Age Factors
Animals
Chick Embryo - physiology
Chickens
Cold Temperature - adverse effects
Embryonic activity
Hypercapnia - physiopathology
Hypoxia - physiopathology
Locomotion
Medical Education
Motor Activity - physiology
Muscle contraction
Muscle Contraction - physiology
Oxygen consumption
Oxygen Consumption - physiology
Oxygen Consumption - radiation effects
Prenatal interventions
Pressure
Pulmonary/Respiratory
Respiration
Telemetry
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Summary:Highlights • The cost of embryonic motility was computed in chicken embryos (day 10–18) from the pressure produced and the corresponding changes in oxygen consumption. • At all ages, it was an almost negligible fraction of the embryo's energy budget. • At day 18, hypercapnia and cold respectively increased and decreased motility, while hypoxia had variable effects. • Because of its low cost, motility can be maintained in hypoxia; conversely, reduction of motility in hypoxia does not provide an important energy saving.
ISSN:1569-9048
1878-1519
DOI:10.1016/j.resp.2013.05.030