• KOREAN POULTRY JOURNAL
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• v.38 no.2 s.436
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• pp.110-113
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• 2006

• Korean Journal of Poultry Science
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• v.41 no.4
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• pp.305-311
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• 2014

Copy number variation (CNV) is a form of structural variation that shows various numbers of copies in segments of the DNA. It has been shown to account for phenotypic variations in human diseases and agricultural production traits. Currently, most of chicken breeds in the poultry industry are based on European-origin breeds that have been mostly provided from several international breeding companies. Therefore, National Institute of Animal Science, RDA has been trying to restore and improve Korean native chicken breeds (12 lines of 5 breeds) for about 20 years. Thanks to the recent advance of sequencing technologies, genome-wide CNV can be accessed in the higher resolution throughout the genome of species of interest. However, there is no systematic study available to dissect the CNV in the native chicken breed in Korea. Here, we report genome-wide copy number variations identified from a genome of Korean native chicken (Line L) by comparing between the chicken reference sequence assembly (Gallus gallus) and a de novo sequencing assembly of the Korean native chicken (Line L). Throughout all twenty eight chicken autosomes, we identified a total of 501 CNVs; defined as gain and loss of duplication and deletion respectively. Furthermore, we performed gene ontology (GO) analysis for the putative CNVs using DAVID, leading to 68 GO terms clustered independently. Of the clustered GO terms, genes related to transcription and gene regulation were mainly detected. This study provides useful genomic resource to investigate potential biological implications of CNVs with traits of interest in the Korean native chicken.

• Korean Journal of Poultry Science
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• v.32 no.4
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• pp.239-244
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• 2005

Uncoupling protein(UCP) is expressed exclusively in brown adipose tissue(BAT). It is blown to uncouple phosphorylation from oxidation and hence to be involved in energy metabolism and heat production, especially under cold exposure. In the present study, we identified single nucleotide polymorphism(SNP) in exon 3 of avUCP gene in Korean native chicken(KNC) population. It was detected a SNP T+1316C in exon 3 of avUCP gene by sequence analysis in KNC population. For PCR-RFLP analysis of the SNP T+1316C, used by AP III restriction enzyme. The result of PCR-RFLP analysis showed that allele T has two fragments of 255 bp and 86 bp, and allele C has only one fragment of 341 bp. The genotype frequencies were TT type, 0.7875; TC type, 0.1875 and CC type, 0.025; and the frequencies of allele T and C were 0.881 and 0.119, respectively in KNC population. Next study was conducted to investigate the effect of the SNP in avUCP gene on economic traits in the KNC population. The TT genotype had a significant higher daily percent lay(84.61) than CC genotype(p<0.05) in KNC population. This study may be useful for genetic studies of avCUP gene and selection on daily percent lay of KNC.

• The Science & Technology
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• s.509
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• pp.50-53
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• 2011

닭과 함께 한 80년 세월, 지난 1957년에 미국 미네소타대학에서 석사학위를 한 후, 귀국 길에 모교에서 개량 보존하고 있던 미국산 종계와 종란을 국내에 도입, 6.25 전쟁으로 황폐화한 우리나라 닭의 육종을 개량, 증식함으로써 국민 먹거리와 농가 소득 증대에 기여하였고, 1997년 멸종 위기에 놓여있던 '우리 재래닭' 4종류를 탄생시켜낸 오당(梧堂) 오봉국(嗚鳳國) 박사(86)를 서울 서초구에 있는 대한민국학술원에서 만났다. 오봉국 박사는 서울대학교 농대 교수로 40년간 재직하면서 150여 편의 연구논문을 발표하고 후학들을 이끌어 왔으며, '한국가금발달사'를 저술하여 우리나라의 가금학을 집대성했고, 서울대 농대 학장, 한국가금협회장 등을 역임했다. 평안남도 진남포 출생이며, 국민훈장 모란장을 수훈했다.

• Korean Journal of Poultry Science
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• v.43 no.2
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• pp.119-128
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• 2016

This study was conducted to compare nutritional composition and taste-related compounds of breast and thigh meats from four lines of Korean native chickens (KNC) Yeonsan Ogye, Hyunin Black, Hwangbong, and Hoengseong Yakdak. White Leghorn (WL) was used as a control. Fifteen male chickens (three chickens in each line) were grown under same condition and slaughtered at 53 weeks old. The contents of Fe and K in KNC, especially Hwangbong breast meat and thigh meat of Hyunin Black and Hoengseong Yakdak, were higher than WL. The contents of Na were lower in KNC compared with WL regardless of parts (p<0.05). Vitamin A contents were higher in thigh meat of WL and Hyunin Black, and vitamin $B_1$ contents were lower in Hoengseong Yakdak than other lines. Vitamin $B_3$ were higher in breast meat of four lines of KNC and thigh meat of Hoengseong Yakdak than WL. Total amino acid contents were higher in breast meat of KNC than WL. The level of good-tasting amino acids were significantly higher in breast meat of Hoengseong Yakdak and WL, and thigh meat of Hyunin Black and WL than other lines of chickens (p<0.05). The ratio of good-tasting amino acids to bitter tasting amino acids was higher in breast meat of Hoengseong Yakdak and thigh meat of Hyunin Black than WL. IMP contents were higher in Hyunin Black and WL than other lines of chickens. Based on these results, it can be concluded that four lines of KNC may have superior nutritional quality and taste when compared with WL.

• KOREAN POULTRY JOURNAL
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• v.37 no.9 s.431
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• pp.65-68
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• 2005

• KOREAN POULTRY JOURNAL
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• v.37 no.9 s.431
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• pp.60-64
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• 2005

• KOREAN POULTRY JOURNAL
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• v.44 no.9
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• pp.145-145
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• 2012

• 농업기술회보
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• v.48 no.5
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• pp.48-48
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• 2011

• Monthly Korean Chicken
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• s.125
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• pp.122-128
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• 2005