Feather corticosterone measurements of greater flamingos living under different forms of flight restraint
Reese, Lukas (Freie Universität Berlin. Institute of Animal Welfare)
Baumgartner, Katrin (Tiergarten Nürnberg)
von Fersen, Lorenzo (Tiergarten Nürnberg)
Merle, Roswitha (Freie Universität Berlin. Institute for Veterinary Epidemiology and Biostatistics)
Ladwig-Wiegard, Mechthild (Freie Universität Berlin. Institute of Animal Welfare)
Will, Hermann (Tiergarten Nürnberg)
Haase, Gudrun (Freie Universität Berlin. Institute of Animal Welfare)
Talló Parra, Oriol (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Carbajal, Annaïs (Universitat Autònoma de Barcelona. Departament de Sanitat i d'Anatomia Animals)
López Béjar, Manel (Universitat Autònoma de Barcelona. Departament de Sanitat i d'Anatomia Animals)
Thöne-Reineke, Christa (Freie Universität Berlin. Institute of Animal Welfare)

Fecha:	2020
Resumen:	Deflighting zoo birds is a practice that receives increasing criticism due to its presumed incompatibility with animal welfare. To our knowledge, this is the first approach to address this problem in a scientific way. To do this, we compared feather corticosterone (CORTf) from Greater Flamingos (Phoenicopterus roseus, n = 151) of different flight status (i. e. , pinioned, feather clipped, airworthy) from twelve different zoological institutions. To complement the hormone measurements, behavioral observations (scan samplings) were conducted prior to feather sampling within the presumed time frame of feather growth. We hypothesized that CORTf of the deflighted flamingos would differ from CORTf of their airworthy conspecifics. No significant difference in CORTf was found between the three groups, and our hypothesis was rejected. However, the impact of the institution itself (i. e. , the housing conditions) proved to be the most dominant variable (variance between the institutions = 53. 82%). Due to high variability, the behavioral observations were evaluated descriptively but did not give rise to doubt the findings in CORTf. Therefore, we assume that the method of flight restraint of Greater Flamingos does not have a measurable effect on CORTf. We consider this model for evaluating animal welfare of zoo birds a useful tool and provide ideas for further adjustments for consecutive studies.
Nota:	This research was supported by the German Association of Zoological Gardens (Verband der Zoologischen Gärten e.V, VdZ) with 20,000 €.
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Efectes de l'estrès sobre els animals ; Parcs zoològics ; Flamencs (Ocells) ; Feather corticosterone ; Animal welfare ; Greater Flamingo ; Deflighting ; Pinioning ; Bird
Publicado en:	Animals, Vol. 10 Núm. 4 (april 2020) , p. 605, ISSN 2076-2615

DOI: 10.3390/ani10040605
PMID: 32244837

14 p, 768.7 KB

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