Plasma T3 and T4 Hormone Levels as Reference Values in Rehabilitated Common Buzzard (Buteo buteo), Long-Legged Buzzard (Buteo rufinus) and Golden Eagle (Aquila chrysaetos)

Year 2023, Volume: 8 Issue: 1, 9 - 15, 31.03.2023

Evrim Sönmez , Arzu Gürsoy Ergen

https://doi.org/10.35229/jaes.1206133

Abstract

Applying appropriate criteria for raptors at rehabilitation stages including release and post release determines how healthy the animal can survive in its natural habitat for any length of time. In determining release criteria, clinical examinations of animals as well as clinical data should be evaluated. In this study, plasma T3 and T4 levels of 16 Common Buzzard (Buteo buteo), 7 Long-legged Buzzard (Buteo rufinus) and 7 Golden Eagles (Aquila chrysaetos) were determined at Kafkas University/ Kafkas Wildlife Conservation, Rescue, Rehabilitation Practice and Research Center between 2016-2018. All raptors were kept at the rehabilitation center for 1-3 months in bird care rooms and flight tunnels specially arranged for each species. Rehabilitated birds blood were collected before released to wild. Plasma T3 and T4 hormone levels were analysed and determined in raptors that considered suitable for release. Although small differences were detected between T3 and T4 values as a result of the analysis, no statistical difference was found. These small differences in values may be due to the metabolic responses and environmental conditions of each raptor. As a result, these plasma thyroid hormone levels in rehabilitated raptors can be accepted as reference values.

Keywords

bird physiology, metabolism, raptors, rehabilitation, thyroid hormones

Rehabilite Edilmiş Şahin (Buteo buteo), Kızıl şahin (Buteo rufinus) ve Kaya kartalı (Aquila chrysaetos)’nda Referans plazma T3 ve T4 Hormon Seviyeleri

Abstract

Yırtıcı kuşların rehabilitasyonunda uygun salım kriterlerini belirlemek, kuşları doğal habitatlarına bıraktıktan sonra geri kalan hayatını ne kadar sağlıklı geçireceğini belirler. Salım kriterlerini belirlerken de hayvanların klinik muayenelerinin yanı sıra klinik verilerinin de imkanlar ölçüsünde incelenmesi gerekir. Bu çalışmada 2016-2018 yılları arasında ‘Kafkas Üniversitesi/Kafkas Yaban Hayvanı Koruma, Kurtarma, Rehabilitasyon Uygulama ve Araştırma Merkezi’ne getirilen 16 Kızıl şahin (Buteo buteo), 7 Şahin (Buteo rufinus) ve 7 Kaya kartalı (Aquila chrysaetos)’nın, rehabilitasyonları sonrasında tam sağlıklı şekilde doğaya salınmalarından önceki plazma T3 ve T4 seviyeleri tespit edildi. Değerlendirilen tüm kuşlar 1-3 ay süresince rehabilitasyon merkezinde türlerine özel olarak düzenlenmiş kuş bakım odaları ve uçuş tünellerinde tutuldu. Salınımı uygun görülen yırtıcılarda plazma T3 ve T4 hormon düzeyleri analiz edilerek belirlendi. Analiz sonucunda T3 ve T4 değerleri arasında küçük farklar saptansa da istatistiksel olarak fark bulunamadı. Değerlerdeki bu küçük farklılıklar, her yırtıcı hayvanın metabolik tepkileri ve çevresel koşullarından kaynaklanıyor olabilir. Sonuç olarak rehabilite edilmiş yırtıcılarda bu plazma tiroid hormonu seviyeleri referans değerler olarak kabul edilebilir.

Keywords

kuş fizyolojisi, metabolizma, rehabilitasyon, tiroid hormonları, yırtıcı

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