STUDY OF ANAESTHETIC EFFECTS OF ESSENCE, WATER AND WATER-ALCOHOL EXTRACTIONS OF CLOVE OIL (EUGINA CARYOPHILLATA) IN SOME CULTURED SPECIES OF AQUATIC ANIMALS.
Soltani, Mahdi | Sharifi Pur, E`isa | Abtahi, Behruz | Khosh Bavar Rostami, Hossein Ali | Mehrabi, Mohammad Reza | Kalbasi, Mohammad Reza | Mehrabi, Yad Ol- Lah | A`bd Ol- Hay, Hossein | Omid Beygi, Reza
Anaesthetic effects of essence, water and water-alcohol extractions of clove oil were studied in rainbow trout (Oncorhynchus mykiss), common carp (Cyprinus carpio), Persian sturgeon (Acipenser persicus) and Penaeus semisulcatus under various water quality conditions consisting of water temperature, pH and salinity. The obtained results showed that both water and water–alcohol extractions had no anaesthetic effect at concentration upto 2000 mg/L whilst, essence could aet as a suitable anaesthesia at 50 mg/L. The most suitable anaesthic effect by essence in rainbow trout was 250 mg/L provided at 5◦C and pH 7. Also, clove oil essence showed the best anaesthetic effect in carp under water quality conditions consiting of water temperature at 25◦C and pH 7-8 or water temperature at 30 ◦C and pH 9. In addition, clove oil essence at 75 mg/l and 12 mg/L gave the best anaesthetic and sedation effects in Persian sturgeon provided at 21-23◦C and pH 8.3, respectively. Furthermore, clove oil essence at concentrations above 50 mg/L was able to act as an anaesthesia in P. semisulcatus. However, the best anaesthetic concentration was depended on water quality conditions consiting of water temperature, pH and salinity.
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