TY JOUR TI Comparative analysis of fatty acid composition of rainbow trout muscle tissue of various origins KW rainbow trout KW fatty acid composition KW polyunsaturated fatty acids KW compound feed KW omega-3 KW omega-6 JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Bahareva, A.. AU Sergazieva, O.. AU Koloyanidi, K.. AU Kuzov, A.. PY 2026 IS 2026 PB Astrakhan State Technical University