Effect of Dietary Chestnut or Quebracho Tannin Supplementation on Microbial Community and Fatty Acid Profile in the Rumen of Dairy Ewes
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
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 < 0.05).
