Table 5.
Effects of parental dietary linoleic acid on activities of hepatic lipid metabolism–related enzymes in domestic pigeon squabs.1
| Enzyme | LPL (U/g) | HL (U/mg) | ACC (U/mg) | FAS (ng/mg) | HSL (U/g) | HMGR (umol/min.mg) |
|---|---|---|---|---|---|---|
| Control | 0.29b | 0.18b | 3.59 | 1.01 | 7.88b | 0.34a |
| LA1% | 0.47a | 0.23a | 3.79 | 0.99 | 11.11a | 0.24b |
| LA2% | 0.33b | 0.20a,b | 3.39 | 0.85 | 7.91b | 0.31a |
| LA4% | 0.35b | 0.19b | 3.41 | 1.08 | 5.90c | 0.30a |
| P value | 0.000 | 0.019 | 0.463 | 0.440 | 0.000 | 0.000 |
| SEM | 0.02 | 0.01 | 0.28 | 0.14 | 0.62 | 0.01 |
| Contrast | ||||||
| Linear | 0.219 | 0.630 | 0.302 | 0.846 | 0.000 | 0.139 |
| Quadratic | 0.000 | 0.008 | 0.648 | 0.230 | 0.000 | 0.003 |
a–cMeans (n = 6) within a row with no common superscripts differ significantly (P < 0.05).
Abbreviations: ACC, acetyl-CoA carboxylase; FAS, fatty acid synthase; HL, hepatic lipase; HMGR, 3-hydroxy-3-methylglutaryl coenzyme A reductase; HSL, hormone-sensitive lipase; LPL, lipoprotein lipase.
1
Control = control group; LA1% = 1% linoleic acid addition group; LA2% = 2% linoleic acid addition group; LA4% = 4% linoleic acid addition group.