Table 3.
LSmeans of the line effect for traits computed over the feeding test period (from wk 3 to wk 7).
| P | High-RFI line | Low-RFI line | |||
|---|---|---|---|---|---|
| Trait (t) | Line | LSmeans | SE | LSmeans | SE |
| Residual feed intake (g/d) | *** | 2.8a | 1.0 | −2.6b | 1.0 |
| Lipid quantity (g) | ns | 421 | 11 | 426 | 11 |
| ABW49d (g) | ns | 3336 | 30 | 3334 | 30 |
| BW84d (g) | * | 4280a | 48 | 4431b | 50 |
| BW96d (g) | *** | 5866a | 54 | 6146b | 56 |
| Feed intake during overfeeding (g) | ns | 9508 | 23 | 9487 | 24 |
| Total average daily gain (g/d) | ns | 76.5 | 0.9 | 76.6 | 0.9 |
| Total feed conversion ratio | * | 2.57a | 0.02 | 2.51b | 0.02 |
| Daily feed intake(t) (g) | * | 197a | 2 | 192b | 2 |
| Meal feed intake(t) (g) | ns | 29.4 | 0.9 | 28.1 | 0.9 |
| Meal duration(t) (s) | ns | 117 | 5 | 18 | 5 |
| Daily feeding time(t) (min) | ns | 14.0 | 0.4 | 14.6 | 0.4 |
| Daily feeding rate(t) (g/min) | ns | 15.6 | 0.4 | 14.6 | 0.4 |
| Number of meals per day(t) | ns | 7.2 | 1.0 | 7.5 | 1.0 |
| Daily interval between meals(t) (min) | ns | 137 | 4 | 133 | 4 |
N = 77. Least square means (LSmeans) and SE of the line effect were estimated from linear models accounting for the line effect and the ABW14d covariable (average body weight at 14 d). ABW14d was significant for all traits studied except residual feed intake, BW84d, BW96d, total average daily gain, meal duration and daily feeding time. ABW49d: average body weight at 49 d; BW84d and BW96d: body weight at 84 d and 96 d, respectively.
In a row, values with different superscripts (a, b) were found to be significantly different (P < 0.05) for the line effect.
*: P < 0.05; **: P < 0.01; ***: P < 0.001