Effects of Season and Split-sex Feeding on Performance, Stress and Carcass Quality of Finishing Pigs

계절과 성분리 사육이 비육돈의 생산성, 스트레스 및 도체품질에 미치는 영향

  • Kim, Doo-Hwan (Department of Animal Resources Technology, Gyeongnam National University of Science and Technology) ;
  • Song, Jun-Ik (National Institute of Animal Science, R.D.A.) ;
  • Jeon, Jung-Hwan (National Institute of Animal Science, R.D.A.)
  • 김두환 (경남과학기술대학교 동물소재공학과) ;
  • 송준익 (농촌진흥청 국립축산과학원) ;
  • 전중환 (농촌진흥청 국립축산과학원)
  • Received : 2011.08.01
  • Accepted : 2011.08.26
  • Published : 2011.08.30


This study was designed to determine the effect of season and split-sex feeding on performance, stress and carcass quality of finishing pigs. Two hundred and seventy cross-bred finishing pigs $(82.1{\pm}0.82kg)$ were randomly divided into six groups in 2 seasons (summer and winter) ${\times}$ 3 split-sex feeding (female only, castrated male and mixed) factorial arrangement of treatments. In winter, feed intake and weight gain of finishing pigs were better than summer (p<0.05). Split-sex feeding was affected the feed conversion, feed conversion of finishing pigs were superior in winter and mixed groups. Plasma concentrations of cortisol as a stress indicators was greater in the mixed groups vs female only and castrated male groups. There were no interactions between the season and split-sex feeding in their effects on these blood variables. The season was affected the carcass characteristics and PSE incidence of the finishing pigs, PSE incidence was low in winter and mixed groups. Meat quality did not show any significant difference due to the difference of season and split-sex feeding of finishing pigs. There was no significant difference in the pH, drip loss and meat color of pork loin between the season and split-sex feeding of finishing pigs. In conclusion, the results of this study suggest that we need more precise on-farm management practice in summer and application of split-sex feeding skills to reduce the stress and improve welfare status of finishing pigs.


Supported by : 경남과학기술대학교


  1. 농림수산식품부. 2010. 가축통계
  2. Bertol, T. M., Ellis, M., Hamilton, D. N. and McKeith, F. K. 2002. Effects of handling intensity on blood acid-base balance in slaughter weight pigs. J. Anim. Sci. 80(suppl. 2):86.
  3. Geverink, N. A., Kapper, A., van de Burgwal, J. A., Lambooij, E., Blokhuis, H. J. and Wiegant, V. M. 1998. Effects of regular moving and handling on the behavioural and physiological responses of pigs to preslaughter treatment and consequences for subsequent meat quality. J. Anim. Sci. 76:2080. https://doi.org/10.2527/1998.7682080x
  4. Gispert, M., Faucitano, L., Oliver, M. A., Guardia, M. D., Coll, C., Siggens, K. and Diester, A. 2000. A survey of pre-slaughter conditions, halothane gene frequency and carcass and meat quality in five spanish pig commercial abattoirs. Meat Sci. 55:97. https://doi.org/10.1016/S0309-1740(99)00130-8
  5. Grandin, T. 1998. Review: Reducing handling stress improves both productivity and welfare. The Professional Animal Scientist, Vol. 14. No. 1.
  6. Hamilton, D. N. 2002. On-farm and preslaughter management approaches to reducing stress response and improving pork quality in pigs. Ph.D. Diss. Univ. of Illionois.
  7. Kim, D. H., Woo, J. H. and Lee, C. Y. 2004. Effects of stocking density and transportation time of market pigs on their behaviour, plasma concentrations of glucose and stress-associated enzymes, and carcass quality. Asian-Aust. J. Anim. Sci. 17:116. https://doi.org/10.5713/ajas.2004.116
  8. Kim, D. H., Seo, J. T., Ha, D. M. and Lee, C. Y. 2004. Effects of fasting and handling stress of market pigs on plasma concentrations of stress-associated enzymes and carcass quality. J. Anim. Sci. Vol. 82, Suppl. 1:60(abstract)
  9. Knowles, T. G. and Warriss, P. D. 2000. Stress physiology of animals during transport. In: Livestock Handling and Transport (Ed. T. Grandin). CABI Publishing, New York. pp. 385.
  10. Martoccia, L., Brambilla, G., Macri, A., Moccia, G. and Cosentino, E. 1995. The effect of transport on some metabolic parameters and quality in pigs. Meat Sci. 40:271. https://doi.org/10.1016/0309-1740(94)00015-Y
  11. Peinado, P., Medel, P., Fuentetaja, A. and Mateos, G. G. 2008. Influence of sex and castration on growth performance and carcass and meat quality of heavy pigs destined for dry-cured industry. J. Anim. Sci. 86:1410. https://doi.org/10.2527/jas.2006-807
  12. Rosenvold, K. and Anderson, H. J. 2003. Factors of significance for pork quality - a review. Meat Sci. 64:219. https://doi.org/10.1016/S0309-1740(02)00186-9
  13. SAS. 1998. User's Guide: Statistics. SAS Institute, Inc., Cary, NC, USA.
  14. Warriss, P. D., S. N. Brown and M. Adams. 1994. Relationships between subjective and objective assessments of stress at slaughter and meat quality in pigs. Meat Sci. 38:329. https://doi.org/10.1016/0309-1740(94)90121-X
  15. Warries, P. D., Brown, S. N., Nute, G. R., Knowles, T. G., Edwards, J. E., Perry, A. M. and Johnson, S. P. 1995. Potential interactions between the effect of preslaughter stress and postmortem electrical stimulation of the carcass on meat quality in pigs. Meat Sci. 41:55. https://doi.org/10.1016/0309-1740(94)00055-C
  16. Warriss, P. D., Brown, S. N., Knowles, T. G., Edwards, J. E., Kettlewell, P. J. and Guise, H. J. 1998. The effect of stocking density in transit on the carcass quality and welfare of slaughter pigs; 2. results from the analysis of blood and meat samples. Meat Sci. 48:447.