- Volume 28 Issue 7
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Estimation of Genetic Parameters for Pork Belly Components in Yorkshire Pigs
- Kang, H.S. ;
- Lopez, B.M. ;
- Kim, T.H. ;
- Kim, H.S. ;
- Kim, S.H. ;
- Nam, K.C. ;
- Seo, K.S.
- Received : 2014.09.03
- Accepted : 2015.02.13
- Published : 2015.07.01
This study was conducted to estimate the genetic parameters for pork belly traits and muscles in Yorkshire pigs. Each pork belly was cut into nine parts perpendicular to the thoracic vertebrae (6th to 14th). Traits of belly muscles including the deep pectoral, latissimus dorsi, cutaneous trunci, rectus abdominis, external and internal abdominal oblique from 382 purebred pigs were recorded and analyzed using SAS Package (9.1) and Derivative-free restricted maximum likelihood methods. Heritability estimates for belly traits ranged from 0.27 to 0.49, while they were 0.12 to 0.66 for belly muscles. Moderate to high heritability estimates were noted in belly weight (0.33), belly length (0.28), and belly width (0.49). In belly muscles, the latissimus dorsi and deep pectoral, which are located only in the 6th to 9th vertebrae sections, were found to have heritability estimates ranging from 0.21 to 0.29 and 0.23 to 0.35, respectively. Strong heritability estimates were observed in the 7th to 13th sections of cutaneous trunci muscle ranging from 0.42 to 0.66. Genetic correlations of latissimus dorsi m. with belly length were positive (0.50), while cutaneous trunci m. with belly weight also revealed a positive relationship that ranged from 0.35 to 0.47. The estimated genetic parameters indicate that belly weight can be improved by genetic selection. Differences in the levels of heritability occurred among various parameters of Yorkshire pork belly, which should be considered when performing selection to improve pork belly quality. Moreover, these results can provide valuable information that can be used as the basis for further investigations to improve pork belly.
Genetic Parameters;Pork Belly;Yorkshire Pigs
- Seo, S. H., E. M. Kim, and Y. B. Kim. 2012. Preferences and consumption patterns of consumer to develop processed pork products for export. Korean J. Food Sci. Anim. Resour. 32:18-32. https://doi.org/10.5851/kosfa.2012.32.1.18
- Tholen, E., U. Baulain, M. D. Henning, and K. Schellander. 2003. Comparison of different methods to assess the composition of pig bellies in progeny testing. J. Anim. Sci. 81:1177-1184. https://doi.org/10.2527/2003.8151177x
- Correa, J. A., C. Gariepy, M. Marcoux, and L. Faucitano. 2008. Effects of growth rate, sex and slaughter weight on fat characteristics of pork bellies. Meat Sci. 80:550-554. https://doi.org/10.1016/j.meatsci.2007.12.018
- Hermesch, S. and J. M. O'Shea. 2005. genetic parameters for characteristics of pork bellies. Proc. Assoc. Advmt. Anim. Breed. Genet. 16:137-140.
- Hermesch, S. 2008. Genetic relationships between composition of pork bellies and performance, carcass and meat quality traits. Animal 2:1178-1185.
- Kim, J. H., B. Y. Park, Y. M. Yoo, S. H. Cho, I. H. Hwang, P. N. Seong, K. H. Hah, and M. J. Lee. 2006. Characteristics of carcass and meat quality for Landrace, Yorkshire, Duroc and their crossbreeds. J. Anim. Sci. Technol. (Korea). 48:101-106. https://doi.org/10.5187/JAST.2006.48.1.101
- Marcoux, M., C. Pomar, L. Faucitano, and C. Brodeur. 2007. The relationship between different pork carcass lean yield definitions and the market carcass value. Meat Sci. 75:94-102. https://doi.org/10.1016/j.meatsci.2006.07.001
- Meyer, K. 2007. WOMBAT-A tool for mixed model analyses in quantitative genetics by restricted maximum likelihood (REML). J. Zhejiang Univ. Sci. B 8:815-821. https://doi.org/10.1631/jzus.2007.B0815
- Newcom, D. W., T. J. Baas, J. W. Mabry, and R. N. Goodwin. 2002. Genetic parameters for pork carcass components. J. Anim. Sci. 80:3099-3106. https://doi.org/10.2527/2002.80123099x
- Oh, S. H. and M. T. See. 2012. Pork preference for consumers in China, Japan and South Korea. Asian Australas. J. Anim. Sci. 25:143-150.
- Schroder, B. G. and R. E. Rust. 1974. Composition of pork bellies. II. Compositional variation between and within animals and the relationship of various carcass measurements with the chemical components of the belly. J. Anim. Sci. 39:1037-1044. https://doi.org/10.2527/jas1974.3961037x
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