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Estimation of Genetic Parameters for Characterization of Carcass Traits and Fatty Acid in Hanwoo

한우 등심의 지방산 유전특성 분석을 위한 유전모수 추정

  • Kim, Hyeon Kwon (Division of Applied Life Science (BK21+), Gyeongsang National Univ.) ;
  • Sun, Du Won (Department of Animal Science & Biotechnology, Gyeongsang National Univ.) ;
  • Joo, Seon tae (Division of Applied Life Science (BK21+), Gyeongsang National Univ.) ;
  • Lee, Jung Gyu (Institute of Agriculture & Life Sciences, Gyeongsang National Univ.)
  • 김현권 (경상대학교 응용생명과학부(BK21 plus)) ;
  • 선두원 (경상대학교 농업생명과학대학 축산생명학과) ;
  • 주선태 (경상대학교 응용생명과학부(BK21 plus)) ;
  • 이정규 (경상대학교 농업생명과학연구원)
  • Received : 2019.03.06
  • Accepted : 2019.06.11
  • Published : 2019.08.31

Abstract

Hanwoo has improved the quality of carcass traits. Especially, the higher the grade, the better the texture and taste of Hanwoo. One of the many factors that determine consumer preferences in food is the flavor. The flavor of food is expressed through heat treatment, and fat, carbohydrate and water-soluble compound are important ingredients for flavor. Therefore, The purpose of this study was to investigate the characteristics of fatty acids and carcass traits of 373 Hanwoos. The oleic acid (C18:1) and linolenic acid (C18:3) contents were 48.08% and 0.11%, respectively, while the carcass weight, Eye muscle area, back fat thickness and marbling score of the carcass trait were 383.73 kg, 83.88 ㎠, 10.91 mm, 3.89, respectively. The heritability of oleic acid was estimated to be 0.726, and the phenotypic correlation between eye muscle area and marbling score was estimated to be 0.105 and 0.141, respectively. The phenotype of the marbling score and eye muscle area were positively correlated with Oleic acid. Therefore, the improvement of these two traits seems to affect the increase of unsaturated fatty acid content.

한우는 도체형질의 개량으로 높은 개량의 효과를 보이고 있다. 특히 한우의 육질은 등급이 높을수록 식감과 맛이 좋다고 알려져 있기 때문에 가격을 결정하는 핵심적인 요소이다. 식육에서 맛을 결정하는 여러 가지 요인 중 크게 작용하는 부분 중 하나가 풍미이다. 식육의 풍미는 열처리를 통해 발현되고 풍미에 중요하게 영향을 미치는 성분은 지방, 탄수화물 및 수용성 비단백질 물질들이다. 이에 본 연구는 풍미에 영향을 미치는 지방산의 특성을 알아보고 높은 가치의 식육 생산을 위한 개량방향을 제시하기 위해 한우 후대검정우 373두의 등심을 채취하여 지방산과 도체형질의 특성을 알아보았다. 도체중, 배최장근단면적, 등지방두께, 근내지방도의 성적은 각각 383.73 kg, 83.88 ㎠, 10.91 mm, 3.89로 나타났고 한우 등심의 oleic acid (C18:1)와 Linolenic acid (C18:3)의 조성비율은 각각 48.08%와 0.11%로 나타났다. Oleic acid의 유전력은 0.726으로 추정되었고 배최장근단면적과 근내지방도와의 표현형 상관이 각각 0.105와 0.141로 추정되었다. 근내지방도와 배최장근단면적의 표현형은 Oleic acid와 정의 상관을 나타내고 있는 것으로 보아 이 두 형질의 개량은 불포화 지방산 함유량의 증가에도 영향을 미쳐 우수한 풍미를 가진 개체가 생산될 확률이 높아질 것이라고 사료된다.

Keywords

References

  1. Adhikari K, Chambers E and Miller R. 2011. Development of a lexicon for beef flavor in intact muscle. journal of Sensory Science. 26: 413-420. https://doi.org/10.1111/j.1745-459X.2011.00356.x
  2. Kerth CR, Harbinson AL, Smith SB and Miller RK. 2015. Consumer sensory evaluation, fatty acid composition, and shelf-life of ground beef with subcutaneous fat trimmings from different carcass locations. journal of sensory Science. 104: 30-36.
  3. Folch J, Lees M and Sloane-Stanley GH. 1957. A simple method for the isolation and purification of total lipids from animal tissues. J. Biol. Chem. 226: 497-509. https://doi.org/10.1016/S0021-9258(18)64849-5
  4. Kim HK, Sun DW, Lim HT, Kong IK and Lee JG. 2017. Trend on Contribution of Carcass Trait Influencing Price in Hanwoo Steer. Journal of Agriculture & Life Science. 51: 119-125.
  5. Melton SL, Black JM, Davis GW and Backus WR. 1982. Flavor and Selected Chemical Components of Ground Beef from Steers Backgrounded on Pasture and Fed Corn up to 140 Days. The institute of food technologists. 47: 699-704.
  6. Misztal I, Lawlor TJ and Short TH. 1992. Multipletrait estimation of variance components of yield and type traits using an animal model. J. Dairy Sci. 75: 544-551. https://doi.org/10.3168/jds.S0022-0302(92)77791-1
  7. Nanae SASAGO, Tsuyoshi ABE, Hironori SAKUMA, Taktoshi KOJIMA and Yoshinobu UEMOTO. 2017. Genome-wide association study for carcass traits, fatty acid composition, chemical composition, sugr, and the effects of related candidate genes in Japanese Black cattle. Animal Science Journal. 88: 33-44. https://doi.org/10.1111/asj.12595
  8. Nogi T, Honda T, Mukai F, Okagaki T and Oyama K. 2011. Heritabilities and genetic correlations of fatty acid compositions in longissimus muscle lipid with carcass traits in Japanese Black cattle. Journal of Animal Science. 89: 615-621. https://doi.org/10.2527/jas.2009-2300
  9. Pitchford WS, Deland MPB, Siebert BD, Malau-Aduliand AEO and Bottema CDK. 2002. Genetic variation in fatness and fatty acid composition of crossbred cattle. Journal of Animal Science. 80: 2825-2832. https://doi.org/10.2527/2002.80112825x
  10. SAS. SAS/STAT software for PC. SAS Institute Inc.; Cary: 2002.
  11. Smith T, Domingue JD, Paschal JC, Franke DE, Bidner TD and Whipple G. 2007. Genetic parameters for growth and carcass traits of Brahman steers. Journal of Animal Science. 85: 1377-1384. https://doi.org/10.2527/jas.2006-653
  12. Sun DW, Kim BW, Moon WG, Park JC, Park, CH, Koo YM, Jeoung YH, Lee JY, Jang HG, Jeon JT and Lee JG. 2010. The estimation of environmental effect and genetic parameters on carcass traits in hanwoo. Journal of Agriculture & Life Science. 44: 83-89.
  13. Wilson DE, Willham RL, Northcutt SL and Rouse GH. 1993. Genetic parameters for carcass traits estimated from angus field records. Journal of Animal Science. 71: 2262-2370.
  14. Yoshimura T and Namikawa K. 1983. Influence of breed, sex and anatomical location on lipid and fatty acid composition of bovine subcutaneous fat. Jpn. J. Zootech. Sci. 54: 97-105.

Cited by

  1. Assessment of the Effects of Carcass Traits and Slaughter Age on the Carcass Grades of Hanwoo Steers Based on the Revised Grading System of Beef Carcasses vol.54, pp.2, 2019, https://doi.org/10.14397/jals.2020.54.2.69