Do T3 levels in incubating eiders reflect the cost of incubation among clutch sizes?

@article{Criscuolo2003DoTL,
  title={Do T3 levels in incubating eiders reflect the cost of incubation among clutch sizes?},
  author={François Criscuolo and Thierry Raclot and Yvon le Maho and Geir Wing Gabrielsen},
  journal={Physiological and biochemical zoology : PBZ},
  year={2003},
  volume={76 2},
  pages={196-203}
}
Complete development of avian eggs requires external heat, inducing in most species an energetic cost of incubation for the parents. Triiodothyronine (T(3)) has been implicated in the control of the metabolic rate and is decreased during fasting in most bird species. This raises the question of the regulation of T(3) during reproduction when incubation (thus heat production) is associated with fasting (and energy sparing). In this study, plasma concentrations of T(3) were studied for different… CONTINUE READING