Apparent <i>in vivo</i> activity (nmol g⁻¹ day⁻¹) of the key enzymes in fatty acid biosynthesis pathways in rainbow trout fed with the two experimental diets with (H-Chol) or without (L-Chol) cholesterol fortification.

<p>Data are presented as a mean ± s.e.m., <i>n</i> = 3, <i>N</i> = 6. P value: ns = not significant,</p><p>* = P<0.05,</p><p>** = P<0.01.</p>1<p>See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0081705#pone-0081705-t001" target="_blank">Table 1</a> for experimental diet abbreviations.</p>2<p>D9fad = fatty acid ▵-9 desaturase.</p>3<p>D6fad = fatty acid ▵-6 desaturase.</p>4<p>D5fad = fatty acid ▵-5 desaturase.</p>5<p>Elovl5 & Elovl2 = fatty acid elongase (−5 and −2).