Comparison of Nutritional Composition, Mineral and Heavy Metal Content of Rainbow Trout from Different Aquaculture Systems

Authors : Bilgen BAŞKAYA, Mehmet ÇELİK, Ali Eslem KADAK, Aygül KÜÇÜKGÜLMEZ

Pages : 547-553

Doi:10.35229/jaes.1345974

View : 28 | Download : 36

Publication Date : 2023-09-30

Article Type : Research Paper

Abstract :In this study, proximate compositions, meat yields, mineral matter insert ignore into journalissuearticles values(Na, Mg, Ca, K);, and heavy metal insert ignore into journalissuearticles values(As, Fe, Zn, Se, Mn, Co, Cu, Pb, Ni); contents of rainbow trout insert ignore into journalissuearticles values(Oncorhynchus mykiss); obtained from concrete pond systems and dam lake net cage were examined. Mineral and heavy metal contents were measured by ICP-OES instrumental analyser. According to the results of rainbow trout meat yield and nutritional composition analysis varied between; meat yield were 57.43-66.40%, crude protein were 16.99-19.93%, crude fat were 3.07-4.18%, crude ash were 0.98-1.58%, and moisture contents were 75.10-77.65%. Mineral contents of Ca 2.66-30.58 mg.kg-1, Na 19.53-36.04 mg.kg-1, K 252.79-310.05 mg.kg-1, and Mg 120.75-137.44 mg.kg-1 were detected in the presented ranges. Detected heavy metals were As 0.42-0.56 mg.kg-1, Fe 2.16-3.69 mg.kg-1, Zn 2.67-4.69 mg.kg-1, and Se 0.17-0.77 mg.kg-1. On the other hand, Mn, Co, Cu, Pb, and Ni were not detected. As a result of the study, it was found that the proximate composition, meat yield, mineral matter, and heavy metal contents of rainbow trout vary depending on the location and size of the fish insert ignore into journalissuearticles values(p<0.05);. However, the heavy metal levels detected in muscle tissue did not exceed the consumption limits.
Keywords : Yetiştiricilik Sistemleri, Proksimet kompozisyonu, Oncorhynchus mykiss, Mineral madde, Ağır metal birikimi