Anaesthetic efficacy of MS-222 and AQUI-S^®in advanced size fry of rohu,Labeo rohita,(Hamilton-Buchanan)

Abstract

Anaesthetic agents are very useful for reducing the stress caused by handling, sorting, transportation, artificial reproduction, tagging, administration of vaccines and surgical procedures in fish. The efficacy of two anaesthetics: MS-222 and AQUI-S â were tested on rohu, Labeo rohita advanced size fry. The lowest effective doses that produced induction in 3 min or less and recovery times 5 min or less and meet the most criteria of good anaesthetic characteristics were 125 mg L À1 of MS-222, and 30 mg L À1 of AQUI-S â in rohu, Labeo rohita advanced size fry. Induction times were significantly decreased with increased in the concentrations of any of the two tested anaesthetic agents. The lowest doses suitable for transportation of rohu advanced size fry observed were: 10-15 mg L À1 of MS-222 and 2.5 mg L À1 AQUI-S â . Both anaesthetics showed promising to be used as anaesthetics for handling and transportation in rohu (Labeo rohita) advanced fry.

Efficacy and effects of clove oil and MS-222 on the immune-biochemical responses of juvenile rohu Labeo rohita

“…With the increase in the concentration of both the anaesthetics, there was significant decrease in the induction time. The similar relationship between concentration and induction time has also been observed in other fish species including rohu (Husen & Sharma, ; Mylonas et al, ; Weber et al, ). Overall, clove oil exposed fish showed longer recovery times compared to fish exposed to MS‐222.…”

“…Overall, clove oil exposed fish showed longer recovery times compared to fish exposed to MS‐222. In fact, longer recovery time in fish exposed to clove oil has also been reported in other fish species as well (Ghanawi, Samer, & Imad, ; Husen & Sharma, ; Palic et al, ). In general, a negative relationship between concentration and induction time of anaesthesia was observed in this study; when the concentration was increased, the induction time decreased.…”

Production of extracts with anaesthetic activity from the culture of Heterosigma akashiwo in pilot-scale photobioreactors

“…The induction and recovery times were close to those desired for an anaesthetic agent (induction 3 min, recovery 5 min [28]). As well, the same quantified order of magnitude was observed for zebrafish [51] and species of commercial importance [52] as with anaesthetics currently in use.…”