Phenotypic Trend and Environmental Factors for Carcass Traits in Commercial Pigs

비육돈의 도체성적 변화 추세와 환경적인 요인 분석

  • Kim, B.W. (Div. of Applied Life Sciences, Graduate School(Insti. of Agric. and Life Sci.), Gyeongsang National Univ.) ;
  • Park, J.W. (Div. of Applied Life Sciences, Graduate School(Insti. of Agric. and Life Sci.), Gyeongsang National Univ.) ;
  • Kim, H.Y. (Div. of Applied Life Sciences, Graduate School(Insti. of Agric. and Life Sci.), Gyeongsang National Univ.) ;
  • Seo, J.T. (Pukyung Pigfarmers Co-operative) ;
  • Lee, J.G. (Div. of Applied Life Sciences, Graduate School(Insti. of Agric. and Life Sci.), Gyeongsang National Univ.)
  • 김병우 (경상대학교 대학원 응용생명과학부(농업생명과학연구원)) ;
  • 박종원 (경상대학교 대학원 응용생명과학부(농업생명과학연구원)) ;
  • 김희열 (경상대학교 대학원 응용생명과학부(농업생명과학연구원)) ;
  • 서종태 (부경양돈농협) ;
  • 이정규 (경상대학교 대학원 응용생명과학부(농업생명과학연구원))
  • Received : 2007.10.01
  • Accepted : 2009.02.20
  • Published : 2009.02.28

Abstract

This study was conducted to analyze the phenotypic trends and environmental factors affecting the following carcass traits : slaughter weight, backfat thickness and carcass grade, in 1,251,572 commercial pigs for 7 years from 1999 to 2005. The average slaughter weight of female, male and barrow were $82.97{\pm}0.008$ $82.00{\pm}0.090$ and $82.79{\pm}0.008$, respectively. The average backfat thickness of female, male and barrow were $19.27{\pm}0.006$, $15.99{\pm}0.072$ and $22.49{\pm}0.006mm$, respectively. The slaughter weight tended to increase over the slaughter years, for backfat thickness remained, even though a significant drop of backfat thickness on 2002($18.75{\pm}0.027$). The slaughter weight was significantly higher in winter($83.29{\pm}0.032$), while the backfat thickness was significantly lower in summer($19.10{\pm}0.026$). The carcass grade A increased from 2000 to 2003, but decreased slightly after 2003. On the contrary, the carcass grade B decreased from 2000 to 2003, but increased slightly after 2003.

본 연구는 1999년부터 2005년까지 부산경남축산물공판장에서 도축된 비육돈 1,251,572두의 자료를 이용하여 돼지의 주요 도체형질인 도축체중, 등지방두께와 도체등급에 대한 년도별 도체등급 변화 추세와 환경적인 요인을 분석하였다. 도축체중의 경우 암퇘지, 수퇘지 및 거세돼지가 각각 $82.97{\pm}0.008$, $82.00{\pm}0.090$$82.79{\pm}0.008kg$으로 조사되었다. 등지방두께는 암퇘지, 수퇘지 및 거세돼지가 각각 $19.27{\pm}0.006$, $15.99{\pm}0.072$$22.49{\pm}0.006mm$로 수퇘지가 유의적으로 얇았다. 도축체중의 경우 1999년에 $80.38{\pm}0.033kg$을 가장 가볍게 나타났고, 2005년에 84.26${\pm}0.033kg$으로 가장 무겁게 나타났으며, 연도가 증가함에 따라 도축체중이 증가하는 경향을 보였다. 년도별 도체등급 변화 추세를 보면 A등급 출현율이 2000년부터 2003년까지는 계속 증가하다가 2003년 이후로 점차 감소하는 경향을 나타냈다.

Keywords

References

  1. Choi, Y. I., Y. T. Kim, C. L. Lee, and I. K. Han. 2000. Carcass and pork quality characteristics by sex and marketing day. Korean J. Anim. Sci. 42(6): 933-940.
  2. Hong, K. C., B. C. Kim, Y. S. Son, and B. K. Kim. 2001. Breeding and genetics : effects of the mating system on fattenning performance and meat quality in commercial pigs. Korean J. Anim. Sci. 43(2): 139-148.
  3. Jang, S. Y. 2004. Analysis of carcass grade, reproductive and weaning performance in pig farm households. Ms. thesis, Kongju National University, Korea
  4. Kim, G. W. and B. S. Im. 2006. Carcass grade and characteristics by carcass weight and backfat thickness of pigs. Korean J. Food Sci. Ani. Resour. 26(2): 183-188.
  5. Larzul, C., L. Lefaucheur, P. Ecolan, J. Gogue, A. Talmant, P. Sellier, P. Le Roy, and G. Monin. 1997. Phenotypic and genetic parameters for longissimus muscle fiber characteristics in relation to growth, carcass and meat quality traits in Large White pigs. J. Anim. Sci. 75(12): 3126-3137.
  6. Park, K. K., H. Y. Park, Y. C. Jung, E. S. Lee, S. Y. Yang, B. S. Im, and C. J. Kim. 2005. Effects of fermented food waste feeds on pork carcass and meat quality Properties. Korean J. Food Sci. Technol.. 37(1): 38-43.
  7. Lee, M. S., Y. I. Lee, S. Lee, S. H. Kim, Y. C. Jung, K. C. Koh, K. C. Hong, and B. C. Kim. 1996. Animal products and processing : carcass traits and pork quality for purebred and crossbred pigs in Korea. Korean J. Anim. Sci. 38(5): 527-535.
  8. Lee, J. G. and S. T. Joo. 1999. Effects of slaughter weight on backfat thickness, intramuscular fat and physical properties of pork loin from barrow. Korean J. Anim. Sci. 41(2): 207-214.
  9. 한국농촌경제연구원(http://www.krei.re.kr).