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KMID : 0380420110350010035
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Journal of Prventive Veterinary Medicine
2011 Volume.35 No. 1 p.35 ~ p.38
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Analysis of disqualifying factors for boars tested on performance at the second, Korea swine testing station from 2007 to 2009
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Yoo Chang-Yeul
Lee Hu-Jang
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Abstract
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This study was carried out to investigate the distribution of disqualified boars tested on performance at the Second Korea Swine Testing Station from 2007 to 2009. Data used in this study were 6,758 records of Duroc, Landrace and Yorkshire breeding stocks which were registered in the herd book of the Korea Animal Improvement Association. Duroc breeding stocks tested performance were vastly outnumbered by Landrace and Yorkshire breeding stocks tested on performance. In disqualifying boars tested on performance, the Yorkshire was the most breeding stock. In the disqualifying factor in 2007, the shortage of index was the most factor. And the most of the disqualifying factors in 2008 and 2009 was the excess of daily age as reaching with 90㎏ body weight.
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KEYWORD
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Boars, Performance test, Disqualifying factor, Duroc, Landrace, Yorkshire
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