Comparative study on the quality and safety aspects of Climbing perch (Anabas testudineus) and Nile tilapia (Oreochromis niloticus) from pond and openwater of Mymensingh, Bangladesh

Abstract

Various quality attributes of Climbing perch (Anabas testudineus) and Nile tilapia
(Oreochromis niloticus) collected from pond and open water were studied. Organoleptic
characteristics (SDP value), proximate composition, TVB-N, heavy metal (Cd and Cu), and
bacteriological aspect of the samples were compared. The protein content of A. testudineus and
O. niloticus of pond origin was 17.03% and 17.15%, whereas of open water was 16.95% and
16.24%, respectively. The lipid content of A. testudineus and O. niloticus of pond was 12.13%
and 8.03 %, whereas from open water was 11.82% and 7.09%, respectively. Ash content of A.
testudineus and O. niloticus from pond was 5.87 % and 4.03 % and from open water was 6.30%
and 4.87%, respectively. The TVB-N content of A. testudineus and O. niloticus from pond was
2.24 mg/100g and 5.32 mg/100g but from open water were 2.63 mg/100g and 5.49 mg/100g,
respectively. The bacterial load of A. testudineus and O. niloticus from pond was 2.25x106
CFU/g and 1.84x105 CFU/g, whereas from open water was 2.54x107 CFU/g and 1.97x106
CFU/g, respectively. Heavy metal concentration in A. testudineus and O. niloticus from pond
was 0.39 ppm and 0.37 ppm for cadmium (Cd) and, 0.4 ppm and 0.36 ppm for Copper (Cu),
respectively. On the other hand, the heavy metal concentration in A. testudineus and O. niloticus
harvested from open water was 0.77 ppm and 0.96 ppm for Cd and, 0.58 ppm and 1.87 ppm for
Cu, respectively. All parameters were within the acceptable limit except APC in open water
fishes. Result of the present research indicated that the pond fishes were of better quality and
safer than those of the open water fishes.