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Evaluation of Growth Performance and Bioaccumulation Pattern of Metals in Catfish Species, Channa marulius and Wallago attu under Cadmium and Chromium Toxicity

Evaluation of Growth Performance and Bioaccumulation Pattern of Metals in Catfish Species, Channa marulius and Wallago attu under Cadmium and Chromium Toxicity

Moazama Batool1*, Sajid Abdullah2, Huma Naz3, Mubashar Hussain4, Sadia Maalik1, Sajida Mushtaq1, Tanveer Ahmed5 and Laiba Shafique6

1Department of Zoology, GC Women University Sialkot, Pakistan.
2Department of Zoology, Wildlife and Fisheries, University of Agriculture Faisalabad, Pakistan.
3Department of Zoology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan.
4Department of Zoology, University of Gujrat, Pakistan.
5Department of Life Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan.
6State key Laboratory for Conservation and Utilization of Sub-tropical Agro-Bioresources, Guangxi University Nanning China.
 
Corresponding Author: Moazama Batool
moazama.batool@gcwus.edu.pk

ABSTRACT

The aim of present study was to assess the growth performance and bio-accumulation of metals in Channa marulius and Wallago attu exposed to 1/3rd of LC50 of chromium (Cr) and cadmium (Cd) for 8-week. In both treatments statistically significantly, variable responses viz. wet weight gain (WG), feed intake (FI), feed conversion ratio (FCR) and specific growth rate (SGR) were determined. The control fish (unstressed) had significantly higher WG followed by Cr and Cd test mediums. The FI by C. marulius was significantly higher as 12.83±0.07 g in Cr followed by Cd (12.14±0.05 g) and control (9.57±0.364) medium. However, FI by W. attu was higher in control (15.30±0.40) followed by Cr (13.08±0.06) and Cd (11.98±0.03) exposed mediums. The cumulative FI by W. attu was greater than C .marulius in all treatments. In control, FCR of both species was better significantly than fish reared in Cr and Cd exposed test mediums. In control, SGR of C. marulius and W. attu was noted as 20.50±0.52 and 21.78±0.44, respectively that was significantly better than Cr (13.62±0.09 and 14.02±0.04) and Cd (13.55±0.05 and 13.82±0.04). The comparison between species showed that C. marulius amassed higher concentration of both metals as compared to W. attu. However, Cr accumulates at higher concentration in all organs of both fish species as compared to Cd. The amassment order for metals in both species was studied as kidney>liver>gills>skin>fins>bones>muscle.
 
 

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Pakistan Journal of Zoology

October

Vol. 53, Iss. 5, Pages 1603-2000

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