TB 4.26 3.88 4.48 4.30 4.54 4.73 0.32 0.5014 Surface discolouration IF 4.85 4.89 4.90 4.54 4.93 4.69 0.30 0.9260 scored TM 4.43 4.50 4.93 4.72 5.08 4.88 0.30 0.5845 Marbling scoree TB 2.89ab 2.86b 2.25c 3.13a 2.89ab 2.82b 0.10 <0.0001 IF 3.96a 3.74ab 2.88c 4.13a 3.70ab 3.29bc 0.17 <0.0001 TM 2.36a 2.51a 1.94b 2.52a 2.37a 2.43a 0.10 0.0004 Note: Least square means within the same row not sharing a lowercased italic letter differ significantly (P < 0.05). beef grading system (Canada Gazette 1992). aCanada D1 to D4: Canadian quality grades for mature animals. OTM: A/AA youthful physiologically and over thirty months based on dentition. UTM = A/AA youthful physiologically under thirty months based on dentition. error of mean. bStandard = white to 8 = extremely dark red. c1 = 0% to 7 = 100% discoloration. d1 = devoid and 5 = abundant. e1
Surface discolouration scored TB 4.26 3.88 4.48 4.30 4.54 4.73 0.32 0.5014 IF 4.85 4.89 4.90 4.54 4.93 4.69 0.30 0.9260 TM 4.43 4.50 4.93 4.72 5.08 4.88 0.30 0.5845 Marbling scoree TB 2.89ab 2.86b 2.25c 3.13a 2.89ab 2.82b 0.10 <0.0001 IF 3.96a 3.74ab 2.88c 4.13a 3.70ab 3.29bc 0.17 <0.0001 TM 2.36a 2.51a 1.94b 2.52a 2.37a 2.43a 0.10 0.0004 Note: Least square means within the same row not sharing a lowercased italic letter differ significantly (P < 0.05). aCanada beef grading system (Canada Gazette 1992). D1 to D4: Canadian quality grades for mature animals. OTM: A/AA youthful physiologically and over thirty months based on dentition. UTM = A/AA youthful physiologically under thirty months based on dentition. bStandard error of mean. c1 = white to 8 = extremely dark red. d1 = 0% to 7 = 100% discoloration. e1 = devoid and 5 = abundant.
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