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PROCEEDINGS - American Society of Animal Science

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Literature Cited<br />

Beef Improvement Federation. 2002. BIF Guidelines for<br />

Uniform Beef Improvement Programs. (8 th Ed.). Athens,<br />

GA.<br />

Behrends, S. M., R. K. Miller, F. M. Rouquette, Jr., R. D.<br />

Randel, B. G. Warrington, T. D. A. Forbes, T. H. Welsh,<br />

H. Lippke, J. M. Behrends, G. E. Carstens, and J. W.<br />

Holloway. 2009. Relationship <strong>of</strong> temperament, growth,<br />

carcass characteristics and tenderness in beef steers. Meat<br />

Sci. 81:433-438.<br />

Burrow, H. M. 1997. Measurements <strong>of</strong> temperament and<br />

their relationships with performance traits <strong>of</strong> beef cattle.<br />

Anim. Breed. Ab. 65:477-495.<br />

Burrow, H. M., and R. D. Dillon. 1997. Relationships<br />

between temperament and growth in a feedlot and<br />

commercial carcass traits <strong>of</strong> Bos indicus crossbreds. Aust.<br />

J. Exp. Agric. 37:407-411.<br />

Burrow, H. M., G. W. Seifert, and N. J. Corbet. 1988. A<br />

new technique for measuring temperament in cattle. Proc.<br />

Aust. Soc. Anim. Prod. 17:154-157.<br />

Kadel, M. J., D. J. Johnston, H. M. Burrow, H-U. Graser,<br />

and D. M. Ferguson. 2006. Genetics <strong>of</strong> flight time and<br />

other measures <strong>of</strong> temperament and their value as<br />

selection criteria for improving meat quality traits in<br />

tropically adapted breeds <strong>of</strong> beef cattle. Aust. J. Agric.<br />

Res. 57:1029-1035.<br />

King, D. A., C. E. Schuehle Pfeiffer, R. D. Randel, T. H.<br />

Welsh, Jr., R. A. Oliphint, B. E. Baird, K. O. Curley, Jr.,<br />

R. C. Vann, D. S. Hale, and J. W. Savell. 2006. Influence<br />

<strong>of</strong> animal temperament and stress responsiveness on the<br />

carcass quality and beef tenderness <strong>of</strong> feedlot cattle. Meat<br />

Sci. 74:546-556.<br />

Nkrumah, J. D., D. H. Crews, Jr., J. A. Basarab, M. A.<br />

Price, E. K. Okine, Z. Wang, C. Li, and S. S. Moore.<br />

2007. Genetic and phenotypic relationships <strong>of</strong> feeding<br />

behavior and temperament with performance, feed<br />

efficiency, ultrasound, and carcass merit <strong>of</strong> beef cattle. J.<br />

Anim. Sci. 85:2382-2390.<br />

Petherick, J. C., R. G. Holroyd, V. J. Doogan, and B. K.<br />

Venus. 2002. Productivity, carcass and meat quality <strong>of</strong><br />

lot-fed Bos indicus cross steers grouped according to<br />

temperament. Aust. J. Exp. Agric. 42:389-398.<br />

Tulloh, N. M. 1961. Behaviour <strong>of</strong> cattle in yards. II. A<br />

study <strong>of</strong> temperament. Anim. Behav. 9:25-30.<br />

Voisinet, B. D., T. Grandin, S. F. O’Connor, J. D. Tatum,<br />

and M. J. Deesing. 1997. Bos indicus-cross feedlot cattle<br />

with excitable temperaments have tougher meat and a<br />

higher incidence <strong>of</strong> borderline dark cutters. Meat Sci.<br />

46:367-377.<br />

Table 1. Summary <strong>of</strong> Statistics for Temperament and Carcass Traits. 1<br />

Trait N Mean SD<br />

CS 2 1551 2.97 0.86<br />

CS_RI 2 1513 2.50 0.90<br />

EV 2 , m/s 1488 2.94 0.77<br />

EV_RI 2 , m/s 1465 3.15 1.00<br />

Fat thickness, cm 1259 0.51 0.16<br />

HCW, kg 1288 358.49 32.42<br />

KPH, % 1288 3.02 0.50<br />

Marbling 1258 40.66 5.34<br />

Ribeye area, cm 2 1269 12.97 1.41<br />

Yield grade 1259 2.51 0.72<br />

1 Temperament traits = CS, CS_RI, EV, and EV_RI; carcass traits = fat<br />

thickness, Hot Carcass Weight (HCW), kidney, pelvic and heart fat (KPH),<br />

marbling, ribeye area, and USDA yield grade.<br />

2 CS = chute score at receiving; CS_RI = chute score at re-implant; EV =<br />

exit velocity at receiving; EV_RI = exit velocity at re-implant.<br />

Table 2. Pearson Correlation Coefficients <strong>of</strong> Exit Velocity and Chute Score<br />

with Hot Carcass Weight (HCW) and USDA Yield Grade (YG).<br />

Trait CS 1 EV 1 EV_RI 1<br />

HCW, kg 0.05 -0.06 -0.10<br />

YG -0.01 2 -0.02 2 -0.05<br />

1 CS = chute score at receiving; EV = exit velocity at receiving; EV_RI =<br />

exit velocity at re-implant.<br />

2 P > 0.1

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