Variable | Line |
n
| Mean | SEM | StDev | Minimum | Maximum |
---|
RFI-BV | Low RFI | 31 | − 66.5a | 3.6 | 20.1 | −108.7 | −39.5 |
High RFI | 40 | 55.9b | 1.7 | 10.9 | 33.5 | 91.6 |
ADG | Low RFI | 31 | 885.0a | 15.9 | 88.7 | 700 | 1068 |
High RFI | 40 | 827.4b | 15.7 | 99.2 | 543 | 1012 |
FI | Low RFI | 31 | 2288.3a | 34.2 | 190.4 | 1914 | 2658 |
High RFI | 40 | 2362.7a | 40.5 | 255.9 | 1725 | 3026 |
FCR | Low RFI | 31 | 2.60b | 0.03 | 0.18 | 2.25 | 2.91 |
High RFI | 40 | 2.87a | 0.03 | 0.21 | 2.46 | 3.28 |
FCRe | Low RFI | 31 | 25b | 0.3 | 2 | 22 | 29 |
High RFI | 40 | 28a | 0.3 | 2 | 24 | 32 |
- Abbreviations used: ADG Average daily gain (g/d), FI feed intake (g/kg), FCR Feed conversion ratio (kg/kg), FCRe Net energy feed conversion ratio (MJ/kg), RFI-BV Breeding value for residual feed intake (g/d). Data were obtained in n = 71 growing pigs from two lines divergently selected for residual feed intake (low/high) and reared under different conditions. ADG, FI and FCR were obtained from referenced publications [21, 22]. The FCRe was newly calculated using the net energy content of diets that was provided in the same publications. Genetic RFI values were newly calculated from performance recorded on pig littermates reared in the selection farm (Rouillé, France). For each trait, data obtained from pigs of both lines were compared by ANOVA; a, b: for a given trait, means with different superscript letter differed between low and high RFI lines (P < 0.05)