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Assessment of Growth Performance and Meat Quality of Black Fin Sea Bream, Acanthopagrus berda (Forsskal, 1775) Reared in Brackish Water Ponds: A Preliminary Investigation

Assessment of Growth Performance and Meat Quality of Black Fin Sea Bream, Acanthopagrus berda (Forsskal, 1775) Reared in Brackish Water Ponds: A Preliminary Investigation

Abdur Rahim1, Ghulam Abbas1,*, Sara Ferrando2, Lorenzo Gallus2 and Abdul Ghaffar3

1Centre of Excellence in Marine Biology, University of Karachi, Karachi-75270, Pakistan
2Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Italy
3Department of Life Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan

*      Corresponding author: abbas.cemb@yahoo.com

ABSTRACT

In the present study, growth potential of juvenile black fin sea bream, Acanthopagrus berda was examined in brackish water ponds. Fish were stocked @ 1500 individuals per pond (2 treated and 2 control) of approximate dimensions, 13.72 m × 10.97 m × 1.52 m (229 m3). In treated ponds, fish were fed with artificial diet (protein 42%, lipid 20% and energy 25.2 kJ g-1) for 120 days in three equal meals. On the other hand, control ponds remained without additives. During the whole study period, water quality parameters of the experimental ponds remained as salinity (15‰ -20‰), dissolved oxygen (5.6 to 7.5ml/l), temperature (25°C to 28°C). pH (7.6-7.8), ammonia (NH4-N) and `nitrites (NO2-N) less than (0.001mg/l), Secchi’s disc visibility (8 cm to 46 cm). Higher percent weight gain (2665 g), specific growth rate (2.76±0.5 % day-1), best feed conversion ratio (0.14), condition factor (4.1), viscerosomatic index (7.1), hepatosomatic index (1.4) were significantly (P< 0.05) higher of fish treated with the artificial diet as compared to those in control ponds. Length-weight relationships of the juveniles showed significant (P < 0.0 I) growth and condition factor associated to feed application in treated ponds. Body composition of the fish was not significantly (P>0.05) different in both the treatments, though protein and lipid contents of fish in treated ponds were greater than that of control ponds. The moister content of liver, muscle, viscera and whole body were not significantly different in control and treated ponds. These results concluded that feed including 42% protein and 20% lipid are best for culture of black-fin sea bream A. berda (body weight 8.5 to 235 g) in brackish water earthen ponds.
 

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Pakistan Journal of Zoology (Associated Journals)

October

Vol. 49, Iss. 5, Pages 1547-1936

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