Comparative analysis of nutritional quality of cultured and wild Nile tilapia (Oreochromis Niloticus) meat in Soroti district.

Abstract

The study was conducted on the proximate composition of wild and cultured Nile tilapia (Oreochromis niloticus) as well as water quality from Arapai pond and Lalle landing site in Soroti district. The internationally accepted methods of AQAC and APHA were used for the analysis of the data. A total of twelve Oreochromis Niloticus fish were collected. Six cultured fish were collected from Arapai pond at Arapai Busitema University and other six from Lalle landing site both found InSoroti district. The study also looked at the water quality from both the wild and culture environments Proximate composition analysis was conducted on the two group to determine the dry matter content, protein, fat, fiber and ash as well as water-quality by determining the levels of pH, temperature, conductivity, phosphate Nitrate; Nitrite, Redox potential and Ammonia. The data was analyzed by one-way analysis of variance. Results obtained were as follows Dry matter (wild Nile tilapia: 90.3%, cultured 92.4%), crude protein (wild Nile tilapia: 78.2%, cultured, 62.3%), crude fat (wild Nile tilapia: 2.0%, cultured 13.0%), ash (wild Nile tilapia: 0.75%, cultured 3.93%), fiber content (wild Nile tilapia 0.51%, cultured 4.49% pH (wild environment 7.55 culture environment 7.37) Conductivity (wild Nile environment: 367:8mg/l, culture: 142.39mg/g), Dissolved oxygen (wild 6·8mg/l culture: 4.98mg/l), Temperature (Wild: 27.27°c, culture: 24.81c), Redox potential (wild: -S.22mv. culture:-3.56.mv): Phosphate (wild environment: 14.52mg/l) culture environment: 85.23mg/l), Nitrate (wild environment: 22.71 mg/l, culture environment: 63.81mg/l); Ammonia/wild environment: 0.47 mg/l culture environment: f2.46mg/l and Nitrite (wild environment: 6.v 16mg/g, culture environment: 31.37mg/l). The results showed 110 significant difference between the two groups in proximate. composition and some water quality parameters. However, the results showed a significant difference between the two groups for dissolved oxygen and redox potential.