NALRF_BIF | Page 19

EFFECT OF DOF ON CARCASS CHARACTERISTICS

Item DOF P-Value

200 235 270 DOF HCW( lbs) 872 946 1009 < 0.01 RF( in) 0.62 0.70 0.78 < 0.01 REA( in 2) 14.08 14.95 15.84 < 0.01 Marbling 532 552 560 0.26 USDA YG 3.4 3.6 3.7 0.09

Impact of DOF

• HCW increased with DOF( 2.16lbs / d for steers; 1.78 lbs / d for heifers)

• REA, RF, and YG increased with DOF

• Percentage of HCW > 1100 lbs( particularly in steers), increased with DOF