Table 2.

Fatty acid profile of rumen liquor from sheep fed with 800 g/head/day of a concentrate containing 84 g kg⁻¹ DM of soybean oil plus 0 (control) or 52.8 g kg⁻¹ DM of a chestnut tannin extract (CHT) or 52.8 g kg⁻¹ of DM of quebracho tannin extract (QUE).

FA g/100 g of total fatty acids	Control	CHT	QUE	SEM1	P value2
10:0	0.197 b	0.186 b	0.439 a	0.077	0.0473
12:0 ante	0.237 b	0.387 a	0.261 b	0.041	0.0402
12:0	0.297 b	0.318 b	0.656 a	0.087	0.0213
13:0	0.305 c	0.453 b	0.542 a	0.024	<0.0001
14:0 iso	0.317 b	0.613 a	0.404 b	0.068	0.0184
14:0	0.485 b	0.556 b	1.438 a	0.076	<0.0001
15:0 iso	0.116 c	0.185 b	0.239 a	0.020	0.0030
15:0 ante	0.378 b	0.376 b	0.507 a	0.039	0.0499
15:0	0.776 b	0.605 c	1.054 a	0.017	<0.0001
16:0 iso	0.175 b	0.178 b	0.276 a	0.029	0.0353
16:0	10,428 c	17.423 b	23.108 a	0.712	<0.0001
17:0 iso	7.544 a	7.418 a	6.135 b	0.288	0.0039
17:0 ante	0.189 b	0.154 c	0.247 a	0.010	<0.0001
17:0	0.327 b	0.342 b	0.532 a	0.037	0.0013
SA, 18:0	50.447 a	44.616 b	32.770 c	1.307	<0.0001
18:1 trans5	0.051 c	0.313 a	0.132 b	0.055	0.0122
18:1 tran6–8	0.476 c	0.682 b	1.134 a	0.131	0.0051
18:1 trans9	0.334 c	0.602 b	0.665 a	0.016	<0.0001
18:1 trans10	0.681 b	1.254 a	1.359 a	0.147	0.0071
VA, 18:1 trans11	1.922 c	6.304 b	7.589 a	0.244	<0.0001
18:1 trans12	0.535 c	0.792 b	1.299 a	0.033	<0.0001
18:1 cis5	0.374 b	0.697 a	0.799 a	0.069	0.0007
18:1 cis7	0.510 c	1.297 b	1.498 a	0.064	<0.0001
18:1 cis9	2.337 c	3.879 b	5.340 a	0.111	<0.0001
18:1 cis11	0.414 c	0.702 b	0.892 a	0.014	0.0137
18:1 cis12	0.258	0.315	0.363	0.042	0.1927
VLA, 18:2 trans11, cis15	0.123	0.181	0.179	0.049	0.5901
LA, 18:2 cis9, cis12	0.845 c	1.096 b	1.926 a	0.075	<0.0001
LNA, 18:3 cis9, cis12, and cis15	0.305 c	0.363 b	0.467 a	0.023	0.0004
RA, 18:2 cis9, trans11	0.651 c	2.137 b	2.600 a	0.042	<0.0001
CLA trans10, cis12	0.163 b	0.162 b	0.258 a	0.017	0.0008
20:0	0.230 b	0.323 b	0.637 a	0.025	<0.0001
20:4	0.738	1.016	0.959	0.110	0.1855
22:0	0.144 c	0.226 b	0.399 a	0.021	<0.0001

¹Standard error mean; ²probability of significant effect (a, b, and c for P < 0.05).