TABLE 1.

Description ^a of yearling temperament scores and number of animals per level in American Angus cattle.

Score	Description a	N
1	Docile—mild disposition. Gentle and easily handled. Stands and moves slowly during processing. Exits chute calmly	191,402
2	Restless—quieter than average but may be stubborn during processing. May try to back out of chute. Some flicking of tail. Exits chute promptly	58,927
3	Nervous—typical temperament is manageable, but nervous and impatient. Displays a moderate amount of struggling, movement, and tail flicking. Exits chute briskly	13,615
4	Flighty (wild)—jumpy and out of control, quivers, and struggles violently. May bellow and froth at the mouth. Displays continuous tail flicking. Defecates and urinates during processing. May jump when penned individually. Exhibits long flight distance and exits chute wildly	1,778
5	Aggressive—may be similar to score 4, but added aggressive behavior, fearfulness, extreme agitation, and continuous movement, which may include jumping and bellowing while in the chute. Exits chute frantically and may exhibit attack behavior when handled alone	235
6	Very aggressive—thrashes about or attacks wildly when confined in small, tight places. Pronounced attack behavior	72

^aDescription and scoring guidelines from the ANGUS Journal Report, October 2007 (Northcutt and Bowman, 2007); N: Number of animals per score of yearling temperament after the data quality control.