지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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This study was carried out to development paternal selection indices for improvement of meat production ability in Korean Native Pigs which were raised at the swine farm. Records on 1,053 Korean native pigs for average daily gain (ADG), age at 70 kg (D70 kg) and backfat thickness (BF) made between 2001 and 2010 in herds on National Institutes of Animal Science in Korea were used to estimate genetic parameters. The data was analyzed by the MTDF-REML (Derivative-Free Restricted Maximum Likelihood) program of Boldman using a multi-trait animal model. The results to estimatethe genetic parameters were as follows. Heritabilities were 0.26, 0.09, and 0.29 for ADG, D70 kg and BF, respectively. The phenotypic correlations of ADG with D70 kg and BF were -0.89 and 0.15. The phenotypic correlation of D70 kg with BF was -0.16. The genetic correlations of ADG with D70 kg and BF were -0.28, 0.93, respectively. The genetic correlation of D70 kg with BF was -0.34. Selection indices were calculated as follows using genetic parameters and economic values estimated in this study. I1=100+9.72(ADG–)–1.33(BF–), I2=100–0.14(D70 kg–)–1.16(BF–),where ADG is individual average daily gain, is average daily gain of contemporary group, BF is individual backfat thickness, is backfat thickness of contemporary group, D70 kg is individual days to 70 kg and is days to 70 kg of contemporary group
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참고문헌 (14)
참고문헌 신청
/ 2004 / Study on carcass rate and characteristics in Korean Native Pigs
/ 2011 / 2010 Annual Report of Livestock production cost
Boldman, K. / 1991 / Derivative-free restricted maximum likelihood estimation in animal models with a spares matrix solver / J. Dairy Sci 74 : 4337 ~
Bryner, S. M. / 1992 / Estimation of direct and maternal heritability and genetic correlation for backfat and growth rate in swine using data from centrally tested Yorkshire
Hazel, L. N. / 1942 / The efficiency of three methods of selection / J. Hered 33 : 393 ~ 399
/ 2011 / 2010 Annual Report of Livestock production cost
Boldman, K. / 1991 / Derivative-free restricted maximum likelihood estimation in animal models with a spares matrix solver / J. Dairy Sci 74 : 4337 ~
Bryner, S. M. / 1992 / Estimation of direct and maternal heritability and genetic correlation for backfat and growth rate in swine using data from centrally tested Yorkshire
Hazel, L. N. / 1942 / The efficiency of three methods of selection / J. Hered 33 : 393 ~ 399
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