Document Type : Research Paper

Author

• M. Mohammadi Arani

Isfahan Training Center of Jihad-e-Keshavarzi

Abstract

In this research the effect of different concentrations and exposure time of clove oil (Eugenia caryophyllata) on anesthesia and recovery stages of fingerlings of Persian sturgeon (Acipenser persicus) in three groups of 4.25 g (9-11 cm), 3.33 g (7-9 cm) and 1.89 g (5-7 cm) was investigated at Shahid Rajaee center in Sari in Mazandaran Province by immersion method. The pH and temperature of water were 8.31 and 22°C, respectively. Different concentrations of clove oil (25-120 PPM) showed significant effect according to data of this research (mean range of anesthesia and recovery stages were 39-527 and 247-773 seconds, respectively). Based on the results, when the concentration and exposure time enhanced, the anesthesia stages happened rapidly, while recovery stages take placed more slowly (α<0.05). The 75 PPM of clove oil was determined as the best concentration for anesthesia and recovery. This study shows the high potential of clove oil for fish anesthesia, and the clove oil different concentrations (50-120 PPM) seems to be suitable for anesthetization of Persian sturgeon fingerlings.

Keywords

• Clove oil
• Persian sturgeon
• Acipenser persicus
• Anesthesia