Ünal İSPİR, Mikail ÖZCAN, Muammer KIRICI

Gökkuşağı Alabalığı Yetiştiricilik Tesislerinden Izole Edilen Yersinia Ruckeri Suşlarının Yağ Asit Kompozisyonu

Bu çalışmada Türkiye’nin beş farklı bölgesindeki gökkuşağı alabalığı yetiştiricilik tesislerinden izole edilen 33 Yersinia ruckeri yağ asit miktarlarındaki değişimler incelenmiştir. Bütün suşların koloni ve hücre morfolojisi ile biyokimyasal özellikleri yönünden incelenmesi sonucu Y. ruckeri olduğu ortaya konulmuştur. Bütün Y. ruckeri suşlarında 12:0 (Laurik asit), 14:0 (Miristik asit), 16:0 (Palmitik asit), 16:1n-7 (Palmitoleik asit), 17:1 (Heptadekanoik asit), 18:1n-9c (Oleik asit), 18:2n-6c (Linoleik asit), 18:3n-3c (Alfa-linoleik asit) gibi 8 önemli yağ asidi tespit edilmiştir. İzolatların biyokimyasal özellikleri karşılaştırılmıştır. Yağ asidi ve biyokimyasal özellikler arasında farklılık bulunamamıştır. Bu çalışmada Türkiye’deki gökkuşağı alabalığı yetiştiricilik tesislerinden izole edilen Y. ruckeri suşlarının yağ asidi kompozisyonunun büyük oranda homojen olduğu görülmüştür.

Fatty Acid Composition in Yersinia ruckeri Strains Isolated from Rainbow Trout Farms

In this study, a total of 33 Yersinia ruckeri isolates were obtained from rainbow trout farms in the five different region of Turkey. We determined to changes in fatty acids group of the strains. All the isolates were identified as Y. ruckeri based on colonical, cellular morphology and biochemical characters. All Y. ruckeri 8 major fatty acids, including 12:0 (Lauric acid), 14:0 (Myristic acid), 16:0 (Palmitic acid), 16:1n-7 (Palmitoleic acid), 17:1 (Heptadecanoic acid), 18:1n-9c (Oleic acid), 18:2n-6c (Linoleic acid), 18:3n-3c (Alfa-linoleic acid). Compared to isolates biochemical property, there was no difference between fatty acids and biochemical characteristics. The results of this study showed that the fatty acids composition of Y. ruckeri isolated strains from rainbow trout farms in Turkey is on a large scale homogenous.

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