Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Effects of plasma insulin, and leptin on fat traits in Hanwoo (Korean cattle)

혈중 인슐린 및 렙틴이 한우 지방형질에 미치는 효과

  • 김형철 (농촌진흥청 국립축산과학원 한우시험장) ;
  • 이승환 (농촌진흥청 국립축산과학원 한우시험장) ;
  • 당창권 (농촌진흥청 국립축산과학원 한우시험장) ;
  • 임다정 (농촌진흥청 국립축산과학원 동물유전체과) ;
  • 최봉환 (농촌진흥청 국립축산과학원 동물유전체과) ;
  • 장선식 (농촌진흥청 국립축산과학원 한우시험장) ;
  • 조영무 (농촌진흥청 국립축산과학원 한우시험장) ;
  • 전기준 (농촌진흥청 국립축산과학원 한우시험장) ;
  • 박응우 (농촌진흥청) ;
  • 조용민 (농촌진흥청) ;
  • 이준헌 (충남대학교 동물자원생명과학과) ;
  • 양보석 (농촌진흥청 국립축산과학원 한우시험장) ;
  • 홍성구 (농촌진흥청 국립축산과학원 생명환경부)
  • Received : 2012.03.02
  • Accepted : 2012.06.18
  • Published : 2012.06.30
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Abstract

The objective of this study was to examine the effect of plasma leptin and insulin concentrations on fat traits in Hanwoo. If a biological indicator such as plasma leptin and insulin was identified, it would be a useful biological marker that can be predicted marbling score in young animal. The relationship between plasma hormone (leptin and insulin) and fat traits (marbling score, back fat thickness and P8 fat thickness) was investigated. The experiment studies 100 Hanwoo that were randomly sampled from Hanwoo Experimental Station Herd. The concentration of plasma insulin was significantly associated with marbling score (P=0.02) but was not significantly with back fat thickness (P=0.07) and P8 fat thickness (P=0.09). Statistical model determinant that plasma insulin concentration account for phenotypes was moderate on marbling score (5%), back fat thickness (3%) and P8 fat thickness (9%). On the other hand, plasma leptin concentration was significantly associated with marbling score (P=0.03) and back fat thickness (P=0.02), but was not significant on P8 fat thickness (0.07). Statistical model determinant that plasma leptin concentration accounting for phenotypes was moderate effect on marbling score (3%) and back fat thickness (2%), but it has a slightly bigger effect on P8 fat thickness (7%). In conclusion, the plasma leptin and insulin seems to have an effect on fat traits (marbling score, backfat thickness and P8 fat thickness) in Hanwoo.

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References

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