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Table 1 Descriptive statistics (mean, SD, min and max) in feedlot beef cattle for feed efficiency, performance and carcass traits

From: Single nucleotide polymorphisms for feed efficiency and performance in crossbred beef cattle

Trait1 No2 Mean SD Min Max
Feed efficiency traits:  
Average daily gain (ADG), kg d-1 726 1.70 0.385 0.71 3.30
Mid-test metabolic weight (MMWT), kg 726 92.4 11.70 53.3 128.1
Daily dry matter intake (DMI), kg d-1 726 9.81 1.76 4.18 15.54
Residual feed intake (RFI), kg d-1 726 -0.066 1.126 -3.70 3.35
Feed conversion ratio (FCR), kg gain kg-1 DM 726 6.09 1.87 3.11 16.76
Carcass traits:      
Hot carcass weight (HCW), kg 959 353.7 52.47 208 503
Longissimus muscle area (LMA), cm2 848 94.3 14.61 59.4 138.4
Lean meat within the rib section (LR), % 664 54.6 6.79 25.0 75.2
Lean yield grade (LY), % 846 60.1 2.78 51.0 65.0
Fat1 (F1), mm 850 13.4 5.62 1.0 30.0
Fat2 (F2), mm 850 15.7 6.49 1.0 36.0
Fat3 (F3), mm 847 9.6 3.66 1.0 22.0
Grade fat (GRF), mm 846 8.8 3.25 1.0 19.0
Proportion of intermuscular fat (IFR) within the rib section, % 687 10.09 3.22 1.2 20.5
Proportion of body cavity fat within the rib section (BFR), % 684 3.48 1.244 0.96 7.30
Proportion of subcutaneous fat from the rib section (SQFR), % 685 10.30 2.60 2.44 18.53
Marbling scoreb 851 4.90 0.734 3.0 6.0
  1. 1F1, subcutaneous fat depth between the 1st and 2nd quarter of the longissimus; F2, subcutaneous fat depth between 2nd and 3rd quarter of the longissimus; F3, subcutaneous fat depth between the 3rd and 4th quarter of the longissimus.
  2. 2No. = Number of animals’ phenotypes and genotypes for testing the association.
  3. bMarbling was scored as ≤ 3.0 = devoid; 3.1 to 4.0 = traces; 4.1 to 5.9 = slight; 6.0 to 7.0 = small to moderate; and ≥ 7.0 = slightly abundant to abundant.