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PLAQUE INCUBATRICE [1 record]

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Record 1 2018-02-23

English

Subject field(s)
  • Birds
DEF

A featherless area of bare skin on the underpart, or belly area, of a bird's body which during the breeding season is thickened and develops a rich supply of blood vessels just under the skin. By pressing this bare, warm area - the incubation patch - against the eggs, the bird helps transfer heat to them from its body.

French

Domaine(s)
  • Oiseaux
DEF

Partie déplumée et fortement vascularisée du ventre des oiseaux, au contact de laquelle ils couvent leurs œufs.

CONT

Le comportement incubateur est en partie déclenché par l'action d'une hormone appelée prolactine, produite par la glande hypophyse ou pituitaire. Celle-ci provoque également la formation de plaques incubatrices nécessaires pour que les œufs reçoivent la chaleur du corps de l'oiseau couveur [...] Au niveau de ces plaques, la peau se gonfle et son irrigation sanguine s'accroît notablement.

Spanish

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