Influence of glyceryl guaiacolate ether on anesthetics in tilapia compared to benzocaine and eugenol

Revista MVZ Cordoba

Claudiano, Gustavo S¹  Loureiro, Bruna A¹  Salvador, Rogerio¹  Moraes, Flavio R¹  Cosenza, Geovana R¹  Moraes, Julieta RE¹  Eto, Silas F¹  Marcusso, Paulo F²  Shimada, Marina T²  Manrique, Wilson G² 

[1] Universidade Estadual Paulista, Sao Paulo, Brazil;Universidade Estadual do Norte do Parana, Parana, Brazil

关键词: Anesthesia;    hemogram;    teleosts;    Oreochromis niloticus;    Anestesia;    hemograma;    teleósteos;    Oreochromis niloticus.;   

DOI  :  

学科分类：兽医学

来源: Universidad de Cordoba * Facultad de Medicina Veterinaria y Zootecnia

【 摘 要 】

Objective. The study aimed to investigate the effectiveness of glyceryl guaiacolate ether (GGE) and compare the times of induction, recovery, hematological changes, total protein and glycaemia among anesthetics in Nile tilapia, Oreochromis niloticus. Materials and methods. A total of 60 tilapia distributed in 3 aquariums (N=20) were used, which formed the group benzocaine (100 mg/L), eugenol (50 mg/L) and guaiacol glyceryl ether (9.000 mg/L). After the induction of anesthesia fish blood samples were collected to determine the complete hemogram and glycemia. Then the animals were placed in aquariums with running water for assessing the anesthesia recovery. Results. It was verified that GGE showed longer induction and recovery times as well a significant increase (p<0.05) of glycemia, when compared with the other groups (p<0.05). The concentration of total protein did not differ between groups (p>0.05). An increase in the number of monocytes in the group treated with benzocaine (p <0.05) was observed in the analysis of the hematological parameters with no difference between groups for other variables. Conclusions. Eugenol and benzocaine allow rapid induction and recovery in Nile tilapia, without evidence of stress during handling and GGE showed high induction and recovery times, being inadequate for anesthetic use in Nile tilapia.

【 授权许可】

Unknown