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Romanian Journal of Biology - Zoology
ROMANIAN ACADEMY |
LENGTH-WEIGHT RELATIONSHIP OF TILAPIA ZILLII AND SAROTHERODON GALILEAUS REARED IN CAGES IN ODEDA LAKE, OGUN STATE, NIGERIA
IYABODE OLUSOLA TAIWO*, OLANIYI ALABA OLOPADE**
Abstract:
Comparative study was conducted to observe the growth performances of Tilapia zillii and Sarotherodon galileaus fingerlings caged reared were compared using length-weight (LW) relationship technique. The water quality parameters were also assessed in the cages and outside the cages. The mean value of pH (7.03) inside the cages was slightly higher than outside the cage (6.80) and similar results were recorded for water temperature, ammonia and Total dissolved solid. The mean values of dissolved oxygen (9.17mg/L) and conductivity (1024 microfarads) inside cages were lower than outside the cages 11.07mg/L and 1356 microfarads respectively. Tilapia zillii and Sarotherodon galileaus fingerlings were stocked at 50 fingerlings stocked per cage. The length-weight relationship showed that the weight of the fish species increased with total length in both species. The length - weight relationship was given with the following equations: Tilapia zillii Log W=-0.34+1.21LogL; R2 = 0.985; Sarotherodon galileaus Log W=-0.32+1.21LogL; R2 = 0.959; Sarotherodon galileaus grew better and faster than Tilapia zillii indicating that Sarotherodon galileaus species are preferable for cage culture than Tilapia zillii. Odeda Lake contains water of acceptable quality suitable for cage culture.
Citation:
IYABODE OLUSOLA TAIWO*, OLANIYI ALABA OLOPADE**, 2017. LENGTH-WEIGHT RELATIONSHIP OF TILAPIA ZILLII AND SAROTHERODON GALILEAUS REARED IN CAGES IN ODEDA LAKE, OGUN STATE, NIGERIA, Romanian Journal of Biology - Zoology, 62(1-2): 63–72.
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