Fig. 4

Hepatic mRNA level of Δ4 Fads2 (a), Elovl5 (b), Δ5/Δ6 Fads2 (c), Hnf4α (d), and Lxr (e) in tilapia fed a commercial diet un-supplemented (control) or supplemented with 1% or 2%Arg. Values are means ± SEM, n = 3 tanks per group. Means without a common letter differ, P < 0.05. Δ4 Fads2, Δ4 fatty acyl desaturase 2; Δ5/Δ6 Fads2, Δ5/Δ6 fatty acyl desaturase 2; Elovl5, elongase 5 of very long-chain fatty acids; Hnf4α, hepatocyte nuclear factor 4α; Lxr, liver X receptor