Table 3.
Fixed and random effects included in the statistical models used for the single and two-trait analysis.
| Traits 1 | Fixed Effect(s) 2 | Covariate(s) 3 | Random Effect(s) 4 |
|---|---|---|---|
| DP | SLDxST | Age | Animal |
| DLP, b*, LPHA | SLDxST | Age | Animal, DL |
| GI | SLDxST | HCW | Animal |
| BRW, BW, GLD, RMD, BLFT | SLDxST | HCW | Animal, DL |
| LNC | SLDxST, P1vP2up | Animal, DL | |
| a*, L*, LNM | SLDxST, P1vP2up | Age | Animal, DL |
| LJPC | SLDxST, P1vP2up | HCW | Animal |
| DL1, DL2, GBF | SLDxST, P1vP2up | HCW | Animal, DL |
| HCW, LW | SLDxST, SY | Age | Animal, DL |
| BWR | SLDxST, SY | HCW | Animal |
| BL, LL, SRW, TBLW, TPW, TW, UBLW, UBW, ULW, USW | SLDxST, SY | HCW | Animal, DL |
| BLW, LA, LC, SW, TBW, THW, UHW | SLDxST, SY, P1vP2up | HCW | Animal, DL |
| ADG | SLDxST, SY | Animal, DL |
1 DP: dressing percentage; DLP: drip loss percentage; b*: loin Minolta b* score; LPHA: loin pH average; GI: grade index; BRW: back ribs weight; BW: belly width; GLD: grading loin depth; RMD: ruler muscle depth; BLFT: belly flop test; LNC: loin NPPC color score; a*: loin Minolta a* score; L*: loin Minolta L* score; LNM: loin NPPC marbling score; LJPC: loin Japanese color score; DL1: drip loss measurement 1; DL2: drip loss measurement 2; GBF: grading back fat; HCW: hot carcass weight; LW: live weight; BWR: belly width at the rear; BL: belly length; LL: loin length; SRW: side ribs weight; TBLW: trimmed belly weight; TPW: trimmed picnic shoulder weight; TW: tenderloin weight; UBLW: untrimmed belly weight; UBW: untrimmed Boston butt weight; ULW: untrimmed loin weight; USW: untrimmed picnic shoulder weight; BLW: boneless loin weight; LA: loin-eye area; LC: loin-eye circumference; SW: sirloin weight; TBW: trimmed Boston butt weigh; THW: trimmed ham weight; UHW: untrimmed ham weight; ADG: average daily gain. 2 SLDxST: date of animal slaughter by the slaughter technician; P1vP2up: grouping of parity one dams versus parity two and greater dams; SY: season and year of animal birth. 3 Age: age of animal at time of slaughter; HCW: hot carcass weight of animal at time of slaughter. 4 DL: effect of dam and birth litter; common environmental factor.