Table 4.
Effects of stocking density on the mRNA expression of breast muscles growth-related regulatory factors of broilers.1
| Items2 | LSD | MSD | HSD | P-value |
|---|---|---|---|---|
| IGF-1 | 1.74a±0.11 | 0.93b±0.07 | 0.36c±0.04 | <0.01 |
| MSTN | 0.24b±0.01 | 0.67a±0.14 | 0.63a±0.12 | 0.01 |
| MyoD | 1.10a±0.13 | 1.14a±0.17 | 0.22b±0.03 | <0.01 |
LSD, low stocking density (6.25 birds/m2); MSD, medium stocking density (12.50 birds/m2); HSD, high stocking density (18.75 birds/m2).
a–c
Means within a column with different superscripts are different at P < 0.05.
1
All means reported as means ± SD (n = 12).
2
IGF-1, insulin-like growth factor-1; MSTN, myostatin; MyoD, myogenic determination factor 1.