KAPALI DEVRE SU ÜRÜNLERİ SİSTEMİNDE (RAS) YETİŞTİRİLEN İKİ YENİ BALIK TÜRÜNE (Dentex dentex ve Seriola dumerili) AİT MİNERAL MADDE ve BESİN KOMPOZİSYONU

Dünya gıda üretimi içinde en hızlı büyüyen sektör olan su ürünleri yetiştiriciliği, dikkate değer bir önceliğe sahiptir. Yetiştiriciliği etkileyen bazı kısıtlayıcı faktörlerin aşılabilmesi için sektörün teknolojik gelişmelere ve yeni aday türlere ihtiyacı vardır. Bunlar gözönünde bulundurulduğunda, bu çalışmanın temelini kapalı devre su ürünleri sisteminde (RAS) yetiştirilen ve iki potansiyel tür olan sinagrit (Dentex dentex) ve sarıkuyruk (Seriola dumerili) balığına ait et kalitesinin, besin ve mineral madde kompozisyonu yönünden incelenmesi oluşturmaktadır. Besin kompozisyonuna göre, Dentex dentex türüne ait kuru madde içeriği %28.82, fileto verimi ise %53.28’dir, Seriola dumerili ile karşılaştırıldığında bu değerler önemli ölçüde yüksek (P<0.05) bulunmuştur. Ham protein ve lipit değerleri, türler arasında önemsiz küçük değişimler göstermiştir. Macro elementlerden K ve Mg, mikro elementlerden ise Cr, Mn ve Ni, sinagrit balığında yüksek iken, sarıkuyruk balığında iz elementlerden Zn seviyesinin yüksek olduğu (P<0.05) görülmüştür.

Anahtar Kelimeler:

Dentex dentex, Seriola dumerili, mineraller, kapalı devre yetiştiricilik sistemleri (RAS), ICP-AES

MINERAL ELEMENT and NUTRIENT COMPOSITION of TWO NEWLY-INTRODUCED FISH SPECIES (Dentex dentex and Seriola dumerili) in RECIRCULATING AQUACULTURE SYSTEM (RAS)

As the world’s fastest ongrowing sector in food production, aquaculture has remarkable priority and needs technological improvements and new candidate fish species to overcome some limitation factors. Considering these issues, this study based on determining the flesh quality in terms of nutrient and mineral element composition of two potential fish species, common dentex (Dentex dentex) and greater amberjack (Seriola dumerili), in recirculation aquaculture system (RAS). On the nutrient basis, the dry matter content of 28.82% and fillet yield with a value of 53.28% of Dentex dentex were found significantly higher than (P<0.05) Seriola dumerili. Crude protein and lipid values demonstrated slight but insignificant differences between the species. Among the macro elements of K and Mg and micro elements of Cr, Mn and Ni were noticeably higher in common dentex than greater amberjack, but Zn level was present almost double amount in amberjack (P<0.05).

Keywords:

Dentex dentex, Seriola dumerili, mineralst, Recirculating aquaculture systems (RAS), ICP-AES,

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