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.

ABSTRACT
 서 론
 재료 및 방법
  1. 공시재료
  2. 조사항목 및 방법
  3. 통계분석
 결 과
  1. 불합격 검정돈의 분포
  2. 불합격돈의 요인별 분포
 고 찰
 참고문헌

• 유창열(경남도립남해대학 인터넷정보학과) | Chang-Yeul Yoo (Research Institute of Live Sciences, College of Veterinary Medicine, Gyeongsang National University)
• 이후장(경상대학교 수의과대학 생명과학연구원) | Hu Jang Lee (Department of Computer Information, Gyeongnam Provincial Namhae College) Correspondence