Abstract
In this study, the seasonal variation on selected major minerals (Ca, P, K, Mg) and proximate composition of Mesopotamian catfish ( Silurus triostegus Heckel, 1843) were investigated. Fish samples used in this research were obtained seasonally from Ataturk Dam Lake within the boundries of Turkey (37oC45N’ latitude/38oC17E’ longitude) via fishing. The mean value of Ca, P, K and Mg were determined as 92.59±9.81µg/g, 1447.56±117.38µg/g, 2762.50±418.00µg/g and 227.26±39.79µg/g (wet weight) respectively. The highest mineral contents were identified in summer. The highest crude protein was observed in autumn (18.88%) and the lowest in winter (16.88%).The average lipid content was identified between 4.22-6.56% and the highest value was observed in winter. The results showed significant differences between the four seasons (P<0.05) in major minerals and proximate composition.
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