<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The aim of this study was to determine the effect of different water change frequency on the growth of African catfish <italic>Clarias gariepinus.</italic> Fingerlings with initial mean weights of 7.02 ± 0.05g were stocked (50 fish each) in fifteen concrete tanks (2×2×2m) and were conditioned under five different treatments of water renewal, namely: TRT1 (no water change), TRT2 (water renewed daily), TRT3 (water renewed after four days), TRT4 (water renewed after eight days) and TRT5 (water renewed after fourteen days). After 56 days of feeding, results revealed best growth performance of fingerlings in tanks with water renewal frequency of TRT3 and TRT4. Similarly, survival was higher in these frequencies compared to the others; the control treatment, however, had the least performance for all parameters measured. It is therefore recommended that water renewal should be done once between four and eight days to enhance growth of African catfish fingerlings reared in a static system.</p></abstract>

The aim of this study was to determine the effect of different water change frequency on the growth of African catfish Clarias gariepinus. Fingerlings with initial mean weights of 7.02 ± 0.05g were stocked (50 fish each) in fifteen concrete tanks (2×2×2m) and were conditioned under five different treatments of water renewal, namely: TRT1 (no water change), TRT2 (water renewed daily), TRT3 (water renewed after four days), TRT4 (water renewed after eight days) and TRT5 (water renewed after fourteen days). After 56 days of feeding, results revealed best growth performance of fingerlings in tanks with water renewal frequency of TRT3 and TRT4. Similarly, survival was higher in these frequencies compared to the others; the control treatment, however, had the least performance for all parameters measured. It is therefore recommended that water renewal should be done once between four and eight days to enhance growth of African catfish fingerlings reared in a static system.

The effect of water renewal on growth of <italic>Clarias gariepinus</italic> fingerlings

Department of Fisheries and Aquaculture, University of Agriculture, Makurdi, Nigeria

Croatian Journal of Fisheries

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

The effect of water renewal on growth of  fingerlings

The aim of this study was to determine the effect of different water change frequency on the growth of African catfish Clarias gariepinus. Fingerlings with...

The effect of water renewal on growth of Clarias gariepinus fingerlings

Publié en ligne: 31 mars 2016

Pages: 25 - 29

Reçu: 07 déc. 2015

Accepté: 08 mars 2016

DOI: https://doi.org/10.1515/cjf-2016-0005

Mots clés
Water change, Survival, Growth parameter, Water quality

© 2016 Victor Tosin Okomoda et al., published by De Gruyter Open

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

The effect of water renewal on growth of Clarias gariepinus fingerlings

Publié en ligne: 31 mars 2016

Pages: 25 - 29

Reçu: 07 déc. 2015

Accepté: 08 mars 2016

DOI: https://doi.org/10.1515/cjf-2016-0005

Mots clésWater change, Survival, Growth parameter, Water quality

© 2016 Victor Tosin Okomoda et al., published by De Gruyter Open

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

Mots clés
Water change, Survival, Growth parameter, Water quality