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Effect of Biofloc-based Diet on Hepatic Enzymes of Ctenopharyngodon idella Fingerlings

Effect of Biofloc-based Diet on Hepatic Enzymes of Ctenopharyngodon idella Fingerlings

Ghazala Nasreen1, Ali Hussain2, Komal Tayyab1, Muhammad Rashid3 and Sumaira Aslam1*

1Department of Zoology, Government College Women University, Faisalabad, Pakistan
2Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
3Faculty of Fisheries and Wildlife, University of Veterinary and Animal Sciences, Lahore, Pakistan
 
* Corresponding author: sumaslam@gmail.com

ABSTRACT

The impact of bioflocs on the hepatic enzymes under variable diet and water exchange conditions was investigated in the fingerlings of Ctenopharyngodon idella in this study. For this purpose, the fingerlings of C. idella were fed on different concentrations of bioflocs bacteria enriched on banana peels) under different diet treatments for a period of 50 days. The diet treatments devised in this study were, T1 (bioflocs only with zero water exchange), T2 (bioflocs only with 10 % weekly water exchange), T3 (bioflocs + 50 % commercial diet and with zero water exchange) and T4 (bioflocs + 50 % commercial diet and with 10 % weekly water exchange). A control experiment C (commercial diet with daily water exchange) was run parallel. At the end of the experimental trial, the cultured fish were processed for the determination of hepatosomatic indices, levels of total soluble proteins and hepatic enzymes being marker of hepatic injury for all the treatment and control groups. The highest levels of acid phosphatase (ACP, 11.75 ± 0.23 IU L−1), alkaline phosphatase (ALP, 81.50 ± 1.49 IU L−1), aspartate aminotransferase (AST, 30.25 ± 1.62 IU L−1) and superoxide dismutase (SOD, 19.75 ± 1.78 IU L−1) were recorded in the liver samples of the fingerlings of the treatment group T1, while the lowest corresponding figures were noted for the fingerlings of the treatment group T4. These values were lower than found in the control group having 10.50±0.23, 77.25 ± 1.19, 24.50 ± 0.96 and 18.25± 1.19 IU L−1 levels for the ACP, ALP, AST and SOD, respectively. The hyperproduction of the hepatic enzymes revealed dysfunction of the livers in the fingerlings of the treatment group T1. However, the moderate production of hepatic enzymes, elevated levels of total soluble proteins (8073.00 ± 848 mg mL−1) and high hepatosomatic indices (0.913) for the fingerlings of the treatment group T4, thus, declare the productive utility of bioflocs-amended commercial fish feed with 10 % weekly water exchange to achieve optimum growth of the grass carp.

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Pakistan Journal of Zoology

February

Vol. 55, Iss. 1, Pages 1-500

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