Estimated stearoyl-CoA desaturase activity indices (SCD_i) computed from product/substrate ratios computed with the fatty acids in muscle or subcutaneous tissue.

<p>SCDi-14, (14:1/(14:1+14:0)*100); SCDi-16, (16:1/(16:1+16:0)*100); SCDi-17, (17:1/(17:1+17:0)*100); SCDi-18, (18:1/(18:1+18:0)*100).</p

Total lipids (mg/g of dry tissue) in muscle, subcutaneous adipose tissue and liver of female and male muskoxen (<i>Ovibos moschatos</i>) in West Greenland.

<p>Total lipids (mg/g of dry tissue) in muscle, subcutaneous adipose tissue and liver of female and male muskoxen (<i>Ovibos moschatos</i>) in West Greenland.</p

Sampling of muskox (<i>Ovibos moschatus</i>) tissues.

<p>A–Map of Greenland indicating the Kangerlussuaq region where the animals were harvested; B–Muskox carcass after skinning and evisceration. Photograph by K. Raundrup.</p

Effect of basal diet (B) and soybean oil (O) in the total DMA content (mg/g DM) and DMA composition (% of total DMA) of rumen content from lambs fed concentrate or lucerne, with or without soybean oil supplementation.

<p>a,b,c within a row, means without a common letter differ (<i>P</i><0.05);</p>1<p>Diets: C, concentrate; CO, concentrate plus 10% soybean oil; L, pelleted lucerne; LO, pelleted lucerne plus 10% soybean oil;</p>2<p>OBC-DMA, odd- and branched-chain DMA. Abbreviations: i, iso; a, anteiso.</p

Partial GLC-FID chromatogram (from 55 to 132 min) of the FADME and oxo-FAME region after TLC fractionation of a rumen content sample.

<p>*means unidentified compounds.</p

Effect of basal diet (B) and soybean oil (O) on the C18 FA composition (% of total C18 FA) in rumen content from lambs fed concentrate or lucerne, with or without soybean oil supplementation.

<p>a,b,c,d within a row, means without a common letter differ (<i>P<</i>0.05);</p>1<p>Diets: C, concentrate; CO, concentrate plus 10% soybean oil; L, pelleted lucerne; LO, pelleted lucerne plus 10% soybean oil.</p>2<p><i>cis</i>-9,<i>trans</i>-11 coelutes with <i>trans</i>-7,<i>cis</i>-9 and <i>trans</i>-8,<i>cis</i>-10;</p>3<p><i>trans</i>-10,<i>trans</i>-12 might coelute with other <i>trans,trans</i> CLA isomers.</p>4<p>BI, biohydrogenation intermediates, include total C18 FA minus 18∶0, 18∶1<i>cis</i>-9, 18∶1<i>cis</i>-11, 18∶2n-6 and 18∶3n−3.</p>*<p>data not included in the statistical analysis. Abbreviations: i, iso; a, anteiso.</p

Partial GLC-FID chromatogram (from 16.0 to 39.5 min) of a rumen sample from animals fed lucerne, without TLC fractionation (in the top) and after TLC separation into FAME (in the middle) and DMA fractions (in the bottom).

<p>*means unidentified compounds.</p

Illustration of a typical TLC plate, indicating the spots corresponding to FAME (1), DMA (2), oxo-FAME and FADME (3), and the bands collected.

<p>Illustration of a typical TLC plate, indicating the spots corresponding to FAME (1), DMA (2), oxo-FAME and FADME (3), and the bands collected.</p

Partial GLC-FID chromatogram (from 41 to 51.5 min) of a rumen sample from animals fed lucerne, without TLC fractionation (in the top) and after TLC separation into FAME (in the middle) and DMA fractions (in the bottom).

<p>Partial GLC-FID chromatogram (from 41 to 51.5 min) of a rumen sample from animals fed lucerne, without TLC fractionation (in the top) and after TLC separation into FAME (in the middle) and DMA fractions (in the bottom).</p

Effect of basal diet (B) and soybean oil (O) on the FAME composition (mg/g DM), FADME composition (µg/g DM) and partial sums (mg/g DM) of rumen content from lambs fed concentrate or lucerne, with or without soybean oil supplementation.

<p>a,b,c,d within a row, means without a common letter differ (<i>P<</i>0.05);</p>1<p>Diets: C, concentrate; CO, concentrate plus 10% soybean oil; L, pelleted lucerne; LO, pelleted lucerne plus 10% soybean oil;</p>2<p>16∶0-3,7,11,15Me, 3,7,11,15-Tetramethylhexadecanoate;</p>3<p>cyclo-17, methyl-11-cyclohexylundecanoate;</p>4<p>18∶1<i>trans</i>, include 18∶1 <i>trans</i>-2 and <i>trans</i>-4 to <i>trans</i>-15;</p>5<p>18∶1<i>cis</i>; include 18∶1 <i>cis</i>-9 to <i>cis</i>-16;</p>6<p>18∶2non-conj., include <i>trans</i>-11,<i>trans</i>-15, <i>cis</i>-9,<i>trans</i>-13, <i>cis</i>-9,<i>trans</i>-12, <i>trans</i>-9,<i>cis</i>-12, <i>trans</i>-11,<i>cis</i>-15, <i>cis</i>-9,<i>cis</i>-15 and <i>cis</i>-12,<i>cis</i>-15;</p>7<p>18∶2conj. (CLA), conjugated isomers of linoleic acid presented on <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0058386#pone-0058386-t003" target="_blank">Table 3</a>;</p>8<p>18∶0-oxo, include 10-O-18∶0, 13-O-18∶0 and 16-O-18∶0;</p>9<p>C18, includes all FA with 18 carbon chains;</p>10<p>BI, biohydrogenation intermediates, include total C18 FA minus 18∶0, 18∶1<i>cis</i>-9, 18∶1<i>cis</i>-11, 18∶2n-6 and 18∶3n-3. Abbreviations: i, iso; a, anteiso.</p