Table 2. FA composition (% of total FA amounts) of the different ATs, liver and plasma in horses (n = 6) and ponies (n = 6).
| Adipose tissue | Liver | Plasma | |||
|---|---|---|---|---|---|
| RPNfat | MSCfat | SCfat tail | |||
| FA (%) of total FA | |||||
| SFA | |||||
| Pony | 37.9a (36.0/41,3) |
34.5ab (32.8/35.1) |
36.0ab (32.3/38.2) |
39.5a (38.2/40.7) |
31.1b (30.6/31.5) |
| Horse | 40.1a (36.5/41.3) |
37.1ab (35.1/38.6) |
35.9ab (34.7/37.4) |
43.1a (39.9/47.8) |
30.8b (30.7/30.9) |
| P-value | 0.48 | 0.09 | 0.94 | 0.13 | 0.67 |
| MUFA | |||||
| n-7 | |||||
| Pony | 6.42abc (6.08/10.0) |
7.68ac (6.58/10.0) |
8.41a (7.89/9.06) |
3.06b (2.67/3.94) |
3.16bc (2.42/4.09) |
| Horse | 6.08abc (5.34/6.98) |
6.27ab (5.75/7.05) |
8.38a (6.55/9.30) |
2.49c (2.34/2.64) |
2.63bc (2.47/2.66) |
| P-value | 0.39 | 0.13 | 0.94 | 0.09 | 0.39 |
| n-9 | |||||
| Pony | 27.6ab (25.5/32.3) |
31.1a 26.9/34.3) |
29.6a (29.1/33.4) |
13.7b (12.7/17.5) |
13.9b (13.4/15.7) |
| Horse | 28.4ab (27.8/29.0) |
30.4a (29.9/31.1) |
30.7a (29.4/33.0) |
11.7b (10.9/11.7) |
12.9b (12.3/14.4) |
| P-value | 0.59 | 0.70 | 0.70 | 0.03 | 0.18 |
| n-11 | |||||
| Pony | 0.07a (0.06/0.09) |
0.06a (0.06/0.07) |
0.07a (0.06/0.07) |
0.15b (0.11/0.19) |
0.10ab (0.09/0.14) |
| Horse | 0.07ab (0.06/0.08) |
0.08ab (0.06/0.10) |
0.06ab (0.05/0.08) |
0.02a (0.02/0.02) |
0.09 b (0.09/0.11) |
| P-value | 1.00 | 0.24 | 0.82 | < 0.01 | 0.94 |
| PUFA | |||||
| n-3 | |||||
| Pony | 17.0a (13.2/19.0) |
17.4a (12.6/21.6) |
16.8a (11.1/19.4) |
10.1ab (7.38/11.9) |
6.42b (5.80/7.05) |
| Horse | 12.3a (10.8/15.0) |
12.0a (11.5/14.7) |
12.0a (10.3/15.0) |
8.03ab (7.07/8.9) |
4.27b (3.88/4.51) |
| P-value | 0.09 | 0.13 | 0.24 | 0.24 | 0.02 |
| n-6 | |||||
| Pony | 6.77a (6.34/7.82) |
7.03a (6.34/7.61) |
6.71a (5.93/7.77) |
22.4ab (21.4/23.1) |
41.8b (40.9/46.0) |
| Horse | 10.9ab (9.83/14.4) |
10.6ab (10.55/13.9) |
9.12a (8.70/12.4) |
30.0bc (27.8/37.1) |
47.6c (46.3/48.7) |
| P-value | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.02 |
| Iso-BCFA | |||||
| Pony | 0.47a (0.30/0.73) |
0.48a (0.30/0.78) |
0.53a (0.35/0.75) |
10.0b (9.57/10.3) |
0.66ab (0.62/0.89) |
| Horse | 0.51abc (0.46/0.57) |
0.50ab (0.44/0.60) |
0.50a (0.42/0.55) |
1.89c (1.38/2.26) |
0.71bc (0.60/0.80) |
| P-value | 0.70 | 1.00 | 0.82 | < 0.00 | 0.82 |
| n-6/n-3 | |||||
| Pony | 0.40a (0.33/0.59) |
0.40a (0.29/0.60) |
0.40a (0.31/0.69) |
2.22ab (1.80/3.13) |
6.50b (5.80/7.93) |
| Horse | 0.89a (0.66/1.33) |
0.88a (0.71/0.95) |
0.76a (0.58/1.20) |
3.74ab (3.12/5.25) |
11.2b (10.3/12.55) |
| P-value | < 0.01 | < 0.01 | 0.02 | < 0.01 | 0.02 |
RPNfat: retroperitoneal fat, MSCfat: mesocolon fat; SCfat: subcutaneous fat; FA: fatty acid; SFA: saturated fatty acid; MUFA: monounsaturated fatty acid; PUFA: polyunsaturated fatty acid, iso-BCFA: iso-branched-chain fatty acid.
Data are presented as medians and 25th/75th percentiles in (parentheses). Lower-case superscripts within a row with different letters indicate significantly different values (P ≤ 0.05). Significant differences in FA composition and FA ratio between horses and ponies are identified by P values ≤ 0.05