| Angus Trait Heritabilities and Genetic Correlations |
| Trait |
CED |
BW |
WW |
PG |
YH |
SC |
CEM |
MILK |
MW |
MH |
CW |
MARB |
RE |
FAT |
IMF |
URE |
UFAT |
| Calving ease direct (CED) |
.181 |
-.76 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Birth wt direct(BW) |
|
0.42 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weaning direct (WW) |
|
|
0.20 |
0.152 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Postweaning gain (PG) |
|
|
|
0.20 |
0.543 |
0.293 |
|
|
|
|
|
|
|
|
|
|
|
| Yearling ht (YH) |
|
|
|
|
0.45 |
|
|
|
|
|
|
|
|
|
|
|
|
| Scrotal circumference (SC) |
|
|
|
|
|
0.43 |
|
|
|
|
|
|
|
|
|
|
|
| Calving ease maternal (CEM) |
|
|
|
|
|
|
.124 |
|
|
|
|
|
|
|
|
|
|
| Maternal milk |
|
|
|
|
|
|
|
0.14 |
|
|
|
|
|
|
|
|
|
|
| Mature wt (MW) |
|
|
|
|
|
|
|
|
0.55 |
0.80 |
|
|
|
|
|
|
|
| Mature ht (MH) |
|
|
|
|
|
|
|
|
|
0.82 |
|
|
|
|
|
|
|
| Carcass wt (CW) |
|
|
|
|
|
|
|
|
|
|
0.30 |
-0.02 | 0.52 |
0.13 |
|
|
|
| Marbling score (MARB) |
|
|
|
|
|
|
|
|
|
|
|
0.36 |
-0.09 |
0.09 |
|
|
|
| Ribeye area (RE) |
|
|
|
|
|
|
|
|
|
|
|
|
0.28 |
-0.22 |
|
|
|
| Fat thickness (FAT) |
|
|
|
|
|
|
|
|
|
|
|
|
|
0.25 |
|
|
|
| %Intramuscular fat (IMF) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.31 |
-0.04 |
0.22 |
| Ultrasound ribeye area (URE) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.38 |
0.18 |
| Ultrasound fat (UFAT)5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.39 |
1Heritability estimates are on the diagonal.
2Upper off-diagonals are genetic correlations.
3Genetic correlation between 365-d yearling weight and SC or YH.
4Maternal component only.
512th rib fat and rump fat are combined into one fat measure.
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