Standardization of 2-phenoxyethanol as anesthetic for juvenile Brycon cephalus (Gunther, 1869): the use in field procedures
| Autor: | Gilberto Moraes, Luis Antonio Kioshi Aoki Inoue, Cristiano dos Santos Neto |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Agriculture (General)
Biology 2 phenoxyethanol S1-972 lcsh:Agriculture 2-phenoxyethanol Brycon cephalus medicine Juvenile lcsh:Agriculture (General) matrinxã General Veterinary lcsh:S Induction time Agriculture lcsh:S1-972 anesthetic Anesthesia induction time Anesthesia Anesthetic Fish Animal Science and Zoology Agronomy and Crop Science medicine.drug Tropical fish |
| Zdroj: | Ciência Rural, Vol 34, Iss 2, Pp 563-565 (2004) Ciência Rural v.34 n.2 2004 Ciência Rural Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
| ISSN: | 0103-8478 |
| DOI: | 10.1590/s0103-84782004000200035 |
| Popis: | Hyper motility is a negative factor in fish handling procedures due to the risks of damages to the animals. Chemicals are widely used to anesthetize fish during biometry and many other handling procedures. 2-Phenoxyethanol is largely employed, but many studies are necessary about tropical fish responses. The present research evaluated the anesthesia induction time for juvenile matrinxã submitted to eight different levels of 2-phenoxyethanol. The range of 2-phenoxyethanol concentration was 250-600mg liter-1. Induction time of anesthesia decreased as a function of 2-phenoxyethanol concentrations. Fish were safely anesthetized approximately after one minute of exposure to 2-phenoxyethanol batches in concentrations above 400mg/liter, and the recover period was about one minute for all anesthetic concentrations. 2-Phenoxyethanol is a safe anesthetic for juvenile matrinxã even in exposures up to 600mg liter-1 being recommended for many field procedures of fish handling. |
| Databáze: | OpenAIRE |
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