Annual pattern of fecal corticoid excretion in captive Red-tailed parrots (Amazona brasiliensis)

Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
Lucyenne G PoppRosana N Morais

Abstract

Annual patterns of fecal corticoid excretion were analyzed in the threatened Red-tailed parrot (Amazona brasiliensis) in captivity. Corticoid concentration over the 15 months of the study (mean +/- standard error, 12.6 +/- 0.32 ng g(-1), n = 585) was lowest around May (the southern Fall), and greatest around September (late winter), just prior to their normal breeding period. Corticoid excretion follows a seasonal pattern best explained by reproductive cycles rather than climate, although climate may be involved in the timing of corticoid excretion. Fecal corticoids also show promise as a tool to measure stress levels. We demonstrate that fecal corticoid measurement is a simple, yet efficient method for monitoring adrenocortical activity in captive, and perhaps wild, parrots. Monitoring adrenocortical activity can inform researchers about imposed stress in captivity, whether pair-bonds are forming in captive birds, and of the timing of breeding both in captivity and in nature.

References

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Aug 2, 2005·Annals of the New York Academy of Sciences·Isabella B R ScheiberKurt Kotrschal

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Citations

Jan 21, 2017·Veterinary Medicine International·Maura TurrianiPaolo Berardinelli
Nov 24, 2020·Veterinary Record Open·Stefano Paolo MarelliLuisa Zaniboni

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