Influence of Stocking Density on Growth and Survival of Channa punctatus Reared in Cemented Ponds
Influence of Stocking Density on Growth and Survival of Channa punctatus Reared in Cemented Ponds
Muhammad Hanif Chandio1,2*, Naeem Tariq Narejo2, Muhammad Farooq Hassan3, Faheem Sadar4, Nasiruddin Shaikh1, Bushra Ainy Dars5, Ghulam Abass6, Asma Fatima6 and Shahnaz Rashid6
ABSTRACT
The influence of different stocking density on the rearing of fish, Channa punctatus in terms of weight gain (grams) and survival ratio (%) was investigated. Present trial was conducted for a period of 90 days in cemented tanks at University of Sindh, Jamshoro, Pakistan. Different stocking densities were determined such as 10, 15, and 20 fish/m2were selected and placed in different treatments (I-III) with two replicates Fish were fed all parts of chicken (APC) with 10% of their body weight. The results of the growth trial indicated moderate variation among the treatments that, 10 fish/m2in T-I exhibited maximum growth (64.6 g) with 100% survival ratio as compared to other treatment (II and III), 15 fish/m2 (35.0 g with 90% survival) and 20 fish/m2 (16.4 g with 80% survival), respectively. The water quality parameters were monitored on fortnightly basis, such as temperature values were found within optimal range of 26.8 to 30.6oC, pH (7.3 to 7.5), oxygen (4.0 to 4.8mg/l), alkalinity (149 to 180mh/l), nitrate (0.17 to 0.18mg/l) and ammonia from 0.35 to 0.55ug/dLumol/litre. Theresults of the current study concluded that Channa punctatus have a preference to living in a small community than large schooling and could be reared 10/fish/m2 was found to be suitable density for growth and survival in cemented cisterns. Present study plays an important role for culturing and rearing of native snakehead species.
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