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논문 기본 정보

자료유형
학술저널
저자정보
Soo Hyun Lee (Chungnam National University) Dongwon Seo (Chungnam National University) Doo Ho Lee (Chungnam National University) Ji Min Kang (Chungnam National University) Yeong Kuk Kim (Chungnam National University) 이경태 (농촌진흥청 국립축산과학원) Tae-Hun Kim (National Institute of Animal Science) Bong-Hwan Choi (National Institute of Animal Science) Seung Hwan Lee (Chungnam National University)
저널정보
한국축산학회(구 한국동물자원과학회) 한국축산학회지 한국축산학회지 제62권 제4호
발행연도
2020.1
수록면
438 - 448 (11page)

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초록· 키워드

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This study was performed to increase the accuracy of genomic estimated breeding value (GEBV) predictions for domestic pigs using single-breed and admixed reference populations (single-breed of Berkshire pigs [BS] with cross breed of Korean native pigs and Landrace pigs [CB]). The principal component analysis (PCA), linkage disequilibrium (LD), and genome- wide association study (GWAS) were performed to analyze the population structure prior to genomic prediction. Reference and test population data sets were randomly sampled 10 times each and precision accuracy was analyzed according to the size of the reference population (100, 200, 300, or 400 animals). For the BS population, prediction accuracy was higher for all economically important traits with larger reference population size. Prediction accuracy was ranged from ?0.05 to 0.003, for all traits except carcass weight (CWT), when CB was used as the reference population and BS as the test. The accuracy of CB for backfat thickness (BF) and shear force (SF) using admixed population as reference increased with reference population size, while the results for CWT and muscle pH at 24 hours after slaughter (pH) were equivocal with respect to the relationship between accuracy and reference population size, although overall accuracy was similar to that using the BS as the reference.

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