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Table 6 Means and standard errors (M ± SE) of live animal performance and carcass characteristics of ewe and wether prime lambs

From: Performance and carcass characteristics of Australian purebred and crossbred lambs supplemented with Rice Bran

  Ewe Wether P value
Initial BW (kg) 34.7 ± 0.89 35.9 ± 0.86 0.4320 ns
Final BW (kg) 42.9 ± 1.1 45.5 ± 1.18 0.1336 ns
Total weight gain (kg) 8.2 ± 0.5 9.8 ± 0.75 0.1202 ns
Av. Daily gain (g) 167.5 ± 11.0 197.3 ± 15.29 0.1202 ns
Pre-slaughter weight (kg)a 45.5 ± 1.2 45.5 ± 1.18 0.3318 ns
HCW (kg)b 21.0 ± 0.7 20.3 ± 0.87 0.3662 ns
CCW (kg)c 20.7 ± 0.7 20.0 ± 0.87 0.3738 ns
Dressing percentage (%) 46.1 ± 0.9 44.4 ± 1.19 0.8343 ns
Fat thickness (mm) 4.7 ± 0.3 4.0 ± 0.27 0.3389 ns
Body wall thickness (mm) 15.9 ± 1.1 15.1 ± 0.62 0.6601 ns
GR fat score (1–5) 3.6 ± 0.3 3.5 ± 0.16 0.6415 ns
Yield grade 2.2 ± 0.1 2.0 ± 0.10 0.3385 ns
Rib eye area (cm2) 15.2 ± 0.5 14.8 ± 0.51 0.4659 ns
BCTRC %d 48.8 ± 0.2 49.0 ± 0.17 0.6550 ns
OTHe 104.9 ± 3.4 101.6 ± 4.3 0.3662 ns
  1. 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)