| |
Control
|
Rice bran low
|
Rice bran high
|
P value
|
|---|
|
Pre-slaughter weight (kg)a
|
46.0 ± 1.1
|
46.0. ± 1.8
|
44.2 ± 2.1
|
0.3150ns
|
|
HCW (kg)b
|
21.3 ± 0.8
|
20.4 ± 1.1
|
19.4 ± 1.4
|
0.3609ns
|
|
CCW (kg)c
|
21.0 ± 0.7
|
20.1 ± 1.1
|
19.1 ± 1.4
|
0.3417ns
|
|
Dressing percentage (%)
|
46.2 ± 1.2
|
44.4 ± 1.6
|
43.5 ± 1.5
|
0.6819ns
|
|
Fat thickness (mm)
|
4.5 ± 0.3
|
4.3 ± 0.5
|
3.8 ± 0.5
|
0.1602ns
|
|
Body wall thickness (mm)
|
15.2 ± 0.7
|
17.1 ± 1.1
|
14.2 ± 1.3
|
0.1639ns
|
|
GR fat score (1–5)
|
3.5 ± 0.2
|
4.0 ± 0.3
|
3.1 ± 0.3
|
0.0912ns
|
|
Yield grade
|
2.2 ± 0.1
|
2.1 ± 0.2
|
1.9 ± 0.2
|
0.1596ns
|
|
Rib eye area (cm2)
|
15.0 ± 0.5
|
15.3 ± 0.8
|
14.5 ± 0.9
|
0.5246ns
|
|
BCTRC%d
|
48.8 ± 0.2
|
48.8 ± 0.3
|
49.2 ± 0.4
|
0.4228ns
|
|
OTH trade ($AU)e
|
106.3 ± 3.8
|
102.2 ± 5.6
|
97.0 ± 7.2
|
0.4398ns
|
-
aPre-slaughter weight is the weight of animals (minus Merino ewes) prior to transport for slaughter. bHCW = Hot carcass weight. cCCW = Cold carcass weight. dBCTRC% = Boneless, Closely Trimmed Retail Cuts. eOTH = Over the hooks trade (this was based on 500¢AU return per kg of HCW). Level of significance: ns not significant (p > 0.05)
