Abstract
Results of 13 sales of Angus (n=185) and Simmental (n=544) bulls at central bull tests in Kansas from 1988 through 1992 were analyzed to determine the relationship between performance and the price received. The Kansas bull test index (based 50% on weight per- day-of-age and 50% on test ADG) was the most significant single factor determining price in both Angus and Simmental bulls. Birth weight, final weight, and frame score were other major contributors to price in Angus bulls, whereas weaning weight ratio, birth weight, and being polled were important in Simmental bulls. Expected progeny differences made small but significant (P<.05) contributions in Angus bulls but not in Simmental bulls.
Highlights
Bull buyers at central test stations in Kansas are provided with a wealth of information, including preweaning and on-test performance and expected progeny differences (EPDs), by the breed associations
Other information provided to buyers but not considered includes: breeder, birth date, pedigree, weaning contemporaries, and calving ease EPD for Simmental bulls
The relationships between items of performance information make it difficult to determine the exact impact of any it appears that the performance information accounts for a percentage of the variation in price in both breeds, it should be noted that producers may be using the performance information, but selecting in different directions
Summary
Bull buyers at central test stations in Kansas are provided with a wealth of information, including preweaning and on-test performance and expected progeny differences (EPDs), by the breed associations. Abstract Results of 13 sales of Angus (n=185) and Simmental (n=544) bulls at central bull tests in Kansas from 1988 through 1992 were analyzed to determine the relationship between performance and the price received.
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