Genetic and phenotypic correlations (±SE) among various measures of residual feed intake (RFI) and feed intake, performance, and behavior traits1
| Item . | Genetic correlation . | Phenotypic correlation . | ||||
|---|---|---|---|---|---|---|
| RFIC . | RFIO . | RFIS . | RFIC . | RFIO . | RFIS . | |
| ADG | 0.21 ± 0.37 | 0.53 ± 0.46 | 0.31 ± 0.39 | −0.00 | 0.00 | 0.00 |
| DMI | 0.45 ± 0.29 | 0.68 ± 0.24 | 0.51 ± 0.28 | 0.56 | 0.63 | 0.58 |
| MWT | −0.33 ± 0.55 | −0.32 ± 0.59 | −0.27 ± 0.58 | −0.00 | −0.00 | 0.00 |
| UBF | −0.92 ± 1.05 | −0.79 ± 1.15 | −0.99 ± 1.20 | 0.19 | 0.23 | 0.17 |
| Duration | 0.03 ± 0.45 | 0.29 ± 0.41 | 0.04 ± 0.47 | 0.36 | 0.46 | 0.36 |
| Visits | 0.95 ± 0.31 | 0.64 ± 0.50 | 0.94 ± 0.34 | 0.25 | 0.16 | 0.21 |
| HDown | 0.46 ± 0.38 | 0.74 ± 0.35 | 0.51 ± 0.39 | 0.41 | 0.49 | 0.45 |
| Item . | Genetic correlation . | Phenotypic correlation . | ||||
|---|---|---|---|---|---|---|
| RFIC . | RFIO . | RFIS . | RFIC . | RFIO . | RFIS . | |
| ADG | 0.21 ± 0.37 | 0.53 ± 0.46 | 0.31 ± 0.39 | −0.00 | 0.00 | 0.00 |
| DMI | 0.45 ± 0.29 | 0.68 ± 0.24 | 0.51 ± 0.28 | 0.56 | 0.63 | 0.58 |
| MWT | −0.33 ± 0.55 | −0.32 ± 0.59 | −0.27 ± 0.58 | −0.00 | −0.00 | 0.00 |
| UBF | −0.92 ± 1.05 | −0.79 ± 1.15 | −0.99 ± 1.20 | 0.19 | 0.23 | 0.17 |
| Duration | 0.03 ± 0.45 | 0.29 ± 0.41 | 0.04 ± 0.47 | 0.36 | 0.46 | 0.36 |
| Visits | 0.95 ± 0.31 | 0.64 ± 0.50 | 0.94 ± 0.34 | 0.25 | 0.16 | 0.21 |
| HDown | 0.46 ± 0.38 | 0.74 ± 0.35 | 0.51 ± 0.39 | 0.41 | 0.49 | 0.45 |
1Duration = length of time spent on a meal; HDown = head-down time; MWT = metabolic mid-BW; UBF = ultrasound backfat; visits = number of visits to the feed bunk; RFIO = RFI obtained by regressing ADG and MWT on DMI for each test group separately; RFIC = RFI obtained by regressing ADG and MWT on DMI on all pooled data, with test group as a fixed effect; RFIS = RFI obtained by regressing ADG and MWT on DMI, with test group as a fixed effect but within seasonal (fall, winter) groups.
Genetic and phenotypic correlations (±SE) among various measures of residual feed intake (RFI) and feed intake, performance, and behavior traits1
| Item . | Genetic correlation . | Phenotypic correlation . | ||||
|---|---|---|---|---|---|---|
| RFIC . | RFIO . | RFIS . | RFIC . | RFIO . | RFIS . | |
| ADG | 0.21 ± 0.37 | 0.53 ± 0.46 | 0.31 ± 0.39 | −0.00 | 0.00 | 0.00 |
| DMI | 0.45 ± 0.29 | 0.68 ± 0.24 | 0.51 ± 0.28 | 0.56 | 0.63 | 0.58 |
| MWT | −0.33 ± 0.55 | −0.32 ± 0.59 | −0.27 ± 0.58 | −0.00 | −0.00 | 0.00 |
| UBF | −0.92 ± 1.05 | −0.79 ± 1.15 | −0.99 ± 1.20 | 0.19 | 0.23 | 0.17 |
| Duration | 0.03 ± 0.45 | 0.29 ± 0.41 | 0.04 ± 0.47 | 0.36 | 0.46 | 0.36 |
| Visits | 0.95 ± 0.31 | 0.64 ± 0.50 | 0.94 ± 0.34 | 0.25 | 0.16 | 0.21 |
| HDown | 0.46 ± 0.38 | 0.74 ± 0.35 | 0.51 ± 0.39 | 0.41 | 0.49 | 0.45 |
| Item . | Genetic correlation . | Phenotypic correlation . | ||||
|---|---|---|---|---|---|---|
| RFIC . | RFIO . | RFIS . | RFIC . | RFIO . | RFIS . | |
| ADG | 0.21 ± 0.37 | 0.53 ± 0.46 | 0.31 ± 0.39 | −0.00 | 0.00 | 0.00 |
| DMI | 0.45 ± 0.29 | 0.68 ± 0.24 | 0.51 ± 0.28 | 0.56 | 0.63 | 0.58 |
| MWT | −0.33 ± 0.55 | −0.32 ± 0.59 | −0.27 ± 0.58 | −0.00 | −0.00 | 0.00 |
| UBF | −0.92 ± 1.05 | −0.79 ± 1.15 | −0.99 ± 1.20 | 0.19 | 0.23 | 0.17 |
| Duration | 0.03 ± 0.45 | 0.29 ± 0.41 | 0.04 ± 0.47 | 0.36 | 0.46 | 0.36 |
| Visits | 0.95 ± 0.31 | 0.64 ± 0.50 | 0.94 ± 0.34 | 0.25 | 0.16 | 0.21 |
| HDown | 0.46 ± 0.38 | 0.74 ± 0.35 | 0.51 ± 0.39 | 0.41 | 0.49 | 0.45 |
1Duration = length of time spent on a meal; HDown = head-down time; MWT = metabolic mid-BW; UBF = ultrasound backfat; visits = number of visits to the feed bunk; RFIO = RFI obtained by regressing ADG and MWT on DMI for each test group separately; RFIC = RFI obtained by regressing ADG and MWT on DMI on all pooled data, with test group as a fixed effect; RFIS = RFI obtained by regressing ADG and MWT on DMI, with test group as a fixed effect but within seasonal (fall, winter) groups.
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