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Revista Colombiana de Ciencias Pecuarias
versão impressa ISSN 0120-0690
Resumo
TAMAYO ARANGO, Lynda J et al. Didactic model of the chicken embryo development using modified Dawson's diaphanization and staining technique. Rev Colom Cienc Pecua [online]. 2012, vol.25, n.4, pp.620-624. ISSN 0120-0690.
Background: didactic models are a very useful tool for pedagogy in Agrarian Science careers (i.e. Veterinary Medicine and Animal Science). Objective: the aim of this work was to create a didactic model of the chicken embryo development using modified Dawson's diaphanization and staining technique, which allows the centers of ossification to be viewed. Methods: chick embryos from day 5 to day 21 were diaphanized with KOH, stained with Alizarin Red, and stored in glycerol. Results: growth of primary ossification centers during embryonic development was easily visualized. Conclusion: to our knowledge, this is the first literature report showing an anatomical model of all embryonic stages of chicken development. Impact of this model in pedagogy must be evaluated in future works.
Palavras-chave : anatomy; cartilage; embryology; organic system; pedagogy.