Mapping of Gastrulation Movements in Birds

  • Lucien C. A. Vakaet
  • Hilde Bortier
Part of the NATO ASI Series book series (NSSA, volume 279)


Mapping gastrulation movements in Birds is theoretically impossible: a map is a still image and shows at best a snapshot of gastrulation. A map cannot show movements even when it is armed with arrows: to that end movies are needed. To enable the registration and reproduction of the movements within avian blastoderms during the first 24 hours of incubation, a cinephotomicrographic device was set up. The results of these observations are preceded by a demonstration of the procedure for preparing the germs. This procedure is derived from that of New (1955). Its main characteristic is that it allows normal development in vitro for a 24 hour period in laid blastoderms that are cultivated with their ventral side up, towards the observer.


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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Lucien C. A. Vakaet
    • 1
  • Hilde Bortier
    • 2
  1. 1.Laboratory of Experimental CancerologyUniversity HospitalGentBelgium
  2. 2.Department of Anatomy and NeurobiologyUniversity of Salt lake CityUtahUSA

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