<abstract xmlns="http://www.w3.org/1999/xhtml">The objectives of the present study were to analyze the effect of temperature regimes on stress levels and to determine the suitable water temperature for the domestication of tapah, <italic>Wallago leeri</italic> Bleeker. A completely randomized method was used in this study, and three levels of water temperature were tested, namely, 27, 29, and 31°C, in seven replicates. A total of 500 experimental fish were collected from the Kampar River, Langgam, Riau, Indonesia, and transported to the Aquaculture Laboratory, Riau University. The fish were reared in 21 tanks at stocking densities of 70-100 fish tank−1. The fish were fed rough fish three times a day at 08:00, 12:00, and 21:00 for 30 days. Blood samples were taken on days 1, 14, and 29, which were analyzed for cortisol, glucose, and plasma protein. Growth and survival rates were recorded at the end of the experiment. ANOVA showed that water temperature had a significant effect on the stress condition, growth, and survival rate of tapah. Lower blood glucose, protein, and cortisol plasma levels were recorded in fish acclimatized at 29°C with values of 14.44 mg dL−1, 5.35 g dL−1, and 6.90 mg mL−1, respectively. Additionally, higher growth performance (32.30 g) and survival rates (100%) were also found in fish reared at 29°C. It was concluded that the best water temperature for the domestication of tapah is 29°C.</abstract>

The objectives of the present study were to analyze the effect of temperature regimes on stress levels and to determine the suitable water temperature for the domestication of tapah, Wallago leeri Bleeker. A completely randomized method was used in this study, and three levels of water temperature were tested, namely, 27, 29, and 31°C, in seven replicates. A total of 500 experimental fish were collected from the Kampar River, Langgam, Riau, Indonesia, and transported to the Aquaculture Laboratory, Riau University. The fish were reared in 21 tanks at stocking densities of 70-100 fish tank−1. The fish were fed rough fish three times a day at 08:00, 12:00, and 21:00 for 30 days. Blood samples were taken on days 1, 14, and 29, which were analyzed for cortisol, glucose, and plasma protein. Growth and survival rates were recorded at the end of the experiment. ANOVA showed that water temperature had a significant effect on the stress condition, growth, and survival rate of tapah. Lower blood glucose, protein, and cortisol plasma levels were recorded in fish acclimatized at 29°C with values of 14.44 mg dL−1, 5.35 g dL−1, and 6.90 mg mL−1, respectively. Additionally, higher growth performance (32.30 g) and survival rates (100%) were also found in fish reared at 29°C. It was concluded that the best water temperature for the domestication of tapah is 29°C.

Effect of water temperature on the physiological stress and growth performance of tapah (<italic>Wallago leeri</italic>) during domestication

Department of Aquaculture, Faculty of Fisheries and Marine Sciences

Department of Aquaculture, Faculty of Marine and Fisheries

Fisheries & Aquatic Life

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of water temperature on the physiological stress and growth performance of tapah () during domestication

The objectives of the present study were to analyze the effect of temperature regimes on stress levels and to determine the suitable water temperature for the...

Effect of water temperature on the physiological stress and growth performance of tapah (Wallago leeri) during domestication

Published Online: Nov 28, 2017

Page range: 165 - 171

Received: Dec 24, 2016

Accepted: Aug 16, 2017

DOI: https://doi.org/10.1515/aopf-2017-0016

Keywords
blood protein plasma, blood glucose, cortisol plasma, growth rate, survival rate

© 2017 Archives of Polish Fisheries

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of water temperature on the physiological stress and growth performance of tapah (Wallago leeri) during domestication

Published Online: Nov 28, 2017

Page range: 165 - 171

Received: Dec 24, 2016

Accepted: Aug 16, 2017

DOI: https://doi.org/10.1515/aopf-2017-0016

Keywordsblood protein plasma, blood glucose, cortisol plasma, growth rate, survival rate

© 2017 Archives of Polish Fisheries

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
blood protein plasma, blood glucose, cortisol plasma, growth rate, survival rate