Comparative Efficacy of Three Anesthetic Agents on Juvenile African Catfish, Clarias gariepinus (Burchell, 1822)

Year 2013, , - , 01.02.2013

Fatih Öğretmen Kaya Gökçek

https://doi.org/10.4194/1303-2712-v13_1_07

Abstract

In this study, the efficacy of three anaesthetic agents (clove oil, 2-phenoxyethanol and eugenol) was compared in captive-bred African catfish, Clarias gariepinus (Burchell, 1822). The lowest effective concentrations based on the efficacy criteria of complete anesthesia induction within 180 s and recovery within 300 s were determined to be 50 mg L (induction 193±62 s and recovery time 251±32 s) for clove oil, 750 µl L (induction 145±24 s and recovery time 174±10 s) for 2phenooxyethanol, and 50 mg L (induction 197±29 s and recovery time 310±17 s) for eugenol. The onset of individual phases of anesthesia and recovery times depended significantly on the concentration of the anaesthetic used (P<0.05). An inverse exponential relationship was observed between concentrations of anaesthetic and induction time, whereas exponential relationships were observed between concentrations and recovery times for all anaesthetic agents evaluated. The final conclusion of this study, clove oil is the most suitable agent for juvenile African catfish from the three anesthetics tested.

Keywords

Clove oil, 2-phenoxyethanol, eugenol, induction time, recovery time.

Comparative Efficacy of Three Anesthetic Agents on Juvenile African Catfish, Clarias gariepinus (Burchell, 1822)

Abstract

Bu çalışmada, üç anestezik maddenin (karanfil yağı, fenoksiethanol ve eugenol) etkinliği kültür şartları altında yetiştirilmiş Karabalık’larda karşılaştırılmıştır. Etkin en düşük doz kriteri olan 180 s içinde bayılma ve 300 s içinde ayılma hali karanfil yağında 50 mg L (bayılma 193±62 s ve ayılma 251±32 s), fenoksiethanolde 750 µl L (bayılma 145±24 s ve ayılma 174±10 s) ve eugenolde 50 mg L (bayılma 197±29 s ve ayılma 310±17 s) dozlarında elde edilmiştir. Bireysel olarak bayılma ve ayılma hallerinin başlangıcı, kullanılan anestezik maddenin dozuna bağlı olarak istatistiki açıdan farklı bulunmuştur (P<0,05). Anestezik madde konsantrasyonu ile bayılma süresi arasında ters bir üssel ilişki tespit edilmiş, ancak anestezik madde konsantrasyonu ile ayılma süreleri arasındaki ilişki üssel olarak ölçülmüştür. Bu çalışmanın sonucunda, kullanılan üç anestezik maddeden Karabalıklar için en uygun olanın karanfil yağı olduğu söylenebilir.

Keywords

Karanfil yağı, fenoksiethanol, eugenol, bayılma süresi, ayılma süresi.

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