Estimation of Growth Traits Using Growth Curve in Gyungnam-heugdon (Berkshire)

경남흑돈(버크셔)에서 성장곡선을 이용한 성장형질의 추정

  • Do, C.H. (Gyungnam Swine Research Institute)
  • Published : 2007.04.30


The growth traits in swine are economically important, which are measured by gain in weight during test period or by age of days to certain weight. However, the difference in growth rate due to individual performance and also other factors occurs. The more reasonable estimation of the measurements of these traits provides the less error in genetic evaluation of pigs. The data from 1,576 heads being weighed periodically of Gyungnam-heugdon(Berkshire) were analyzed to estimate the growth curve which is used to decide average daily gain and days to 90kg. It may not be possible to directly compare accuracy between the conventional methods and the alternative methods. However, the alternative methods by growth curve would be superior to the conventional methods not only in theoretical background, but also in acceptability for diverse factors such as breed, sex and age. The theoretical superiority of the alternative methods comes from estimation at same age in daily gain and calculation of additional days from measuring date to days to 90kg by growth curve of individual. Also this can be easily adopted in a computer system according to breed and sex.


Growth curve;Daily gain;Days to 90kg;Estimation


  1. Kim, J. I. 2002. Animal model estimation of genetic parameters for direct genetic effect for productive and reproductive traits in swine. Ph. D. Thesis. Seoul National University
  2. NSIF. 2002. Swine Improvement Program Guidelines
  3. SAS. 2001. SAS/STAT SAS Institute., Cary, NC, USA
  4. USDA. 2006. MTGSAM and MTDFREML http: //
  5. Winsor, C. R. 1932. The Gompertz curve as growth curve. Proc. Natl. Acad. Sci. 18:1
  6. 농림부. 축산기술연구소. 2004. 가축개량관련자료
  7. 서강석. 1996. 다형질 애니멀 모델에 의한 돼지 경제형질의 유전 모수, 유종가 및 유전적 변화 추세의 추정에 관한 연구. 서울대학교 박사학위논문
  8. 조영민, 최봉환, 김태헌, 이지웅, 이지의, 오성종, 정일정. 2004. 재래돼지와 랜드레이스 교잡종의 개체별 성장곡선 추정 및 육질 형질과의 상관관계 추정에 관한 연구. 동물자원과학회지 46(4): 503
  9. 한국종축개량협회. 2005. 농장검정보고서 http: //
  10. CCSI. 1997. Estimating Average Daily Gain from Weight and Age