Polidactilia y asimetria fuctuante en el Loro hablador (Amazona aestiva): ¿signos de estres del desarrollo?

HERRERA, JUAN MANUEL; BERKUNSKY, IGOR

Revista Veterinaria

Facultad de Ciencias Veterinarias de la Universidad Nacional del Nordeste (UNNE)

Lugar: Corrientes; Año: 2017 vol. 28 p. 62 - 64

1668-4834

Some abnormalities such as polydactyly and uctuating asymmetry occur as a result of developmental stress. A case of developmental stress that includes poly- dactyly, uctuating asymmetry, and fault bars in one Blue-fronted Amazon nestling (Ama- zona aestiva), is reported. These anomalies were related to the stress caused by a wildland re. Two nestlings of a same nest were examined. Physical examination showed anomalies only in the small nestling which included a) polydactyly in the right leg, b) colour asymmetry in wing feathers with an atypical staining pattern in the right wing and c) stress bars in red pigmentation area of secondary feathers of both wings. Wildland res should be considered as a major stress factor for nesting birds of the Beni Savanna (north of Bolivia).