Article | 3. 2019 Vol. 3, Issue. 1

Korea Institute for Animal Products Quality Evaluation, Sejong, 30100, Korea1
Genomic Informatics Center, Hankyong national university, Anseong, 17579, Korea2

2019.3.  1:6


This study was conducted to identify individuals suspected of natural crosses without KPN gene information and to analyze the relationship with economic traits. Allelic of the analyzed MS markers was compared with KPN information, and individuals with no confirmed parental status were estimated as natural crosses. The results were as follows; 4.37% of the individuals were estimated as natural mating, and the proportion of the natural mating individuals was higher under grade 2 than others grade. In the analysis of economic traits, it was found that natural crosses individuals had a longer breeding period (1.45 months), the carcass weight was lower (9kg), the Longissimus dorsi Muscle Area was smaller (3.85㎠), and the Marbling Score was lower (0.8) than artificial insemination individuals. It also showed a significantly lower value in the meat quality grade, and the economic loss of the natural mating individuals was larger. On the basis of the results, it was shown that, when removing the natural mating individuals, the gain of the production cost by shortening the breeding period was 212 thousand won and the gain of the sale price by increasing of the meat quality grade was 778 thousand won. In other words, it can take a total of 990 thousand won economic gain for each.

1. Kim BG, Yi JK, Jung DJ, Oh DY, Hwang EG. 2014. Effect of Beef Proven Bull on the Quality Characteristics of Castrated Hanwoo Meat by Correlation Analysis. J. Agric. Life Sci, 48(6): 169-180.  

2. Kim SH, Park YS, Kim TK. 2016. Effects of Roughage Choice on Meat Quality Grade of Hanwoo Steers. Korean Journal of Agricultural Management and Policy. 43(2): 328-345.  

3. Notification of Ministry of Agriculture, Food and Rural Affairs . 2013. DNA Identity Test Method for Individual Identification of Cattle and Beef. Ministry of Agriculture, Food and Rural Affairs. 53.  

4. Boleman SJ, SL Boleman, RK Miller, JF Taylor, HR Cross, TL Wheeler, M Koohmaraic, SD Shackelford, MF Miller, RL West, DD Johnsonm, and JW Savell. 1997. Consumer evaluation of beef of known categories of tendernss. J. Anim. Sci. 75: 1521-1524.  

5. Choi TJ, Kim SD, Salces AJ, Baik DH. 2006. Genetic Parameter Estimation on the Growth and Carcass Traits in Hanwoo (Korean cattle). Kor. J. Anim. Sci. Technol. 48(6): 759-766.  

6. Kim HS, Hwang JM, Choi TJ, Park BH, Cho KH, Park CJ and Kim SD. 2010. Research on the reformation of the selection index for Hanwoo proven Bull. J. Anim. Sci. & Technol. 52(2): 83-90.  

7. Kong JS. 2008. An effects to calf auction price of cow improvement. MS. Thesis, Graduate school of argo livestock. kon-kuk University, seoul. Kor.  

8. Lee SH, Park BH, Sharma A, Dang CG, Lee SS, Choi TJ, Choy YH, Kim HC, Jeon KJ, Kim SD, Yeon SH, Park SB, Kang HS. 2014. Hanwoo cattle : orgin, domestication, breeding, strategies and genomic selection J. Anim. Sci. & Technol., 56: 2.  

9. Park CJ, Park YI. 2002. Estimation of Genetic Correlation for the Genetic and Carcass Traits in Hanwoo. Kor. J. Anim. Sci. Technol. 44(6): 685-692.  

10. Thompson J. 2002. Managing meat tenderness. Meat Sci. 62: 295-308.