International Journal of Fisheries and Aquatic Studies
2021, Vol. 9, Issue 2, Part D
Tobacco leaf dust as natural anaesthetic to GIFT tilapia
Author(s): N Daniel, K Sathyaraj, E Suresh, A Angela Mercy, K Karal Marx, A Uma and G Sathishkumar
Abstract: The present study evaluated the anaesthetic activity of tobacco (
Nicotiana tabacum) leaf dust in fish. GIFT tilapia was used as an experimental animal with the total study duration of 24 hours. The fish size of 4.58±0.68 g was randomly distributed into the 20-liter plastic tub at a stocking density of 10 fishes per container. Anaesthetics were added into experimental tubs of seven different groups viz. one control (0 mg/L), followed by six treatment groups (25, 50, 75, 100, 125 and 150 mg/L) in triplicates. Results showed that an increase in the concentration of tobacco leaf dust shortened the induction time, but delayed the recovery time in fish (
p<0.05). There was no mortality observed in control (without sedative) and up to the dosage of 25 to 100 mg/L, but after that mortality ensued from 6 to 16% in the groups exposed to a high dose of more than 100 mg/L (
p<0.05). The temperature in the tanks showed no difference among all groups, while DO, pH, and C02 were affected by anaesthetics given (
p<0.05). The results of this study are encouraging that tobacco leaf dust has the potential to sedate the fish, and it minimizes the water quality concerns at a correct level. Based on the result of this study, tobacco leaf dust at the levels of 25 to 100 mg/L can be recommended to the fish farmers for safe and successful transportation of GIFT tilapia without causing the mortality.
DOI: 10.22271/fish.2021.v9.i2d.2457Pages: 241-244 | 856 Views 221 DownloadsDownload Full Article: Click Here
How to cite this article:
N Daniel, K Sathyaraj, E Suresh, A Angela Mercy, K Karal Marx, A Uma, G Sathishkumar.
Tobacco leaf dust as natural anaesthetic to GIFT tilapia. Int J Fish Aquat Stud 2021;9(2):241-244. DOI:
https://doi.org/10.22271/fish.2021.v9.i2d.2457