• Roza Suleimanova National University of Life and Environmental Sciences of Ukraine
  • Dmytro Melnychuk Advisor to the Presidium of the National Academy of Sciences of Ukraine
  • Liliia Kalachniuk National University of Life and Environmental Sciences of Ukraine
Keywords: sterlet, blood, lipids, saturated fatty acids, monounsaturated fatty acids, polyunsaturated fatty acids


As the only sturgeon living in freshwater, sterlet is important for breeding in industrial fish farms, where lately cases of early mortality of this species have been detected. Hence, in order to preserve the species, it is important to study the parameters of fatty acid (FA) composition of lipid fractions of the blood serum of sterlet.

Here we present changes of fatty acid composition in different lipid fractions of the blood serum of sterlets of different age (namely two-, three- and nine-year-old) with the masses 0.3–0.4, 0.5–0.6 and 5–6 kgfor the age-groups of fish, respectively. Fatty acid (FA) composition was determined using gas-chromatography on HRGC 5300 (Italy) in Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine (NASU). Fatty acid composition of starlet blood serum is presented by saturated and unsaturated high-molecular weight carboxylic acids, mostly palmic, stearic, oleic and linoleic. In the phospholipids fraction, there was a moderate increase in saturated and monounsaturated fatty acids and a slight decrease in polyunsaturated fatty acids depending on the age of fish. As for free fatty acids, there was a drop in the saturated ones depending on the starlet age. Among the free fatty acids of sterlet blood serum, we identified 28 acids, of them 39 %, 35 % and 30 % were saturated in 2-, 3-year-old and mature fish, respectively. Monounsaturated FA content was 14 %, 23 % and 23 % in 2-, 3-year-old and adult sterlet fish, and polyunsaturated FA content –46 %, 41 % and 36 %, respectively. The data can be used for the theoretical verification of correcting supplementary feed and premixes.


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Author Biographies

Roza Suleimanova, National University of Life and Environmental Sciences of Ukraine

Department of biochemistry and physiology of animals named after Academician M. F. Gulyi

Liliia Kalachniuk, National University of Life and Environmental Sciences of Ukraine

Department of biochemistry and physiology of animals named after Academician M. F. Gulyi


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How to Cite
Suleimanova, R., Melnychuk, D., & Kalachniuk, L. (2018). INDICES OF FATTY ACIDS SPECTRUM OF LIPIDS IN THE BLOOD SERUM OF STERLET OF DIFFERENT AGE. EUREKA: Life Sciences, (2), 3-8.
Agricultural and Biological Sciences