• KOREAN POULTRY JOURNAL
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• v.41 no.9
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• pp.102-105
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• 2009

농촌진흥청 국립축산과학원(원장 라승용)은 지난 15년간의 재래닭 수집과 순계 복원, 연구 및 개량을 통해 '우리맛닭'을 탄생시켰다. 재래닭 복원 프로젝트는 1994년부터 1997년까지 4년간 대한양계협회에서 '재래닭육용화 사업'의 일환으로 서울대학교 오봉국 박사(본회 고문)의 진두지휘 하에 대학교 수 16명, 연구관 8명 등 연인원 84명과 9억2천만원의 예산이 투입되어 진행됐으며, 11개의 과제를 수행해 마침내 재래닭 순계 복원에 성공하였다. 연구진은 이후 연구 결과물을 축산과학원으로 이관하여 후속연구를 지속토록 하였으며, 축산과학원은 이로부터 우수한 실용계를 생산하는 연구에 착수하게 됐다. 이러한 과정을 거쳐, 경제적으로 불리한 기존 재래닭의 문제점을 보완하여 산란성과 산육성이 우수한 닭으로 개발한 것이 바로 '우리맛닭'이다. '우리맛닭'은 축산과학원이 보유한 9개 순계 모군으로부터 성장이 빠른 부계통과 맛이 좋고 알 생산이 많은 모계통의 교잡을 통해 맛이 좋고 성장이 빠른 실용계로 생산된다. '우리맛닭'은 콜라겐 함량이 높아 탄력감과 쫄깃한 느낌의 육질을 지니고 있으며, 이를 접하는 소비자들의 반응도 좋게 나타나 그 가능성이 긍정적으로 점쳐지고 있다.

• Korean Journal of Poultry Science
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• v.48 no.4
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• pp.217-225
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• 2021

This study compares the physicochemical characteristics and fatty acid composition of three Korean native chickens and broilers. Ten whole raw broiler chickens and ten each from the three Korean native chickens (KNCs), Hanhyup 3 (HH3), Woormatdak 1 (WRMD1), and Woormatdak 2 (WRMD2), were purchased from the meat market. Their breast and thigh meat were used as samples. The proximate composition, pH, color, water-holding capacity (WHC), shear force, collagen content, and fatty acid composition were determined. In breast meat, the moisture content of HH3 (74.94%) and WRMD1 (74.74%) was lower than that of the broilers (77.1%, P<0.05). No significant difference was found in crude protein, lipids, and ash contents. The crude fat from thigh meat from HH3 and WRMD2 was lower than that of broilers (P<0.05). The redness of WRMD1 was the highest in both breast and thigh meat (P<0.05). The WHC of the breast meat of WRMD1 was lower than that of HH3 and WRMD2. In thigh meat, the WHC of the broilers was significantly higher than that of the KNCs. In breast meat, the shear force of WRMD2 was significantly lower than that of the broilers, HH3, and WRMD1, while no significant difference was found in thigh meat. The collagen content and arachidonic acid levels of the KNCs were significantly higher than those of the broilers for breast and thigh meats. No significant differences were observed among the KNCs. This result can be used to improve the quality of KNC but further studies on the bioactive compounds, taste, and volatile compounds of KNCs are required.

• KOREAN POULTRY JOURNAL
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• v.43 no.9
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• pp.140-141
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• 2011

• KOREAN POULTRY JOURNAL
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• v.42 no.6
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• pp.144-149
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• 2010

• KOREAN POULTRY JOURNAL
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• v.42 no.12
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• pp. 141 - 143
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• 2010

• KOREAN POULTRY JOURNAL
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• v.42 no.7
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• pp.140-144
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• 2010

• KOREAN POULTRY JOURNAL
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• v.42 no.5
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• pp.153-155
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• 2010

• KOREAN POULTRY JOURNAL
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• v.56 no.7
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• pp.125-125
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• 2024

• Korean Journal of Poultry Science
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• v.40 no.2
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• pp.139-145
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• 2013

There are several loci controlling the feather color of birds, of which one of the most studied is Extended black (E) encoding the melanocortin 1-receptor (MC1R). Mutations in this gene affect the relative distribution of eumelanin, phaeomelanin. The association of feather color and sequence polymorphism in the melanocortin 1-receptor (MC1R) gene was investigated using Korean native chicken H breed (H_PL) and 'Woorimatdag' commercial chickens (Woorimatdag_CC). In order to correlate gene mutation to Korean native chicken feather color, single nucleotide polymorphism (SNP) from MC1R gene sequence were investigated. A total of 307 birds from H_PL and Woorimatdag_CC were used. H_PL have black, black-brown feather color and Woorimatdag_CC have black with brown spots or brown with black spots. There are 6 SNPs in MC1R gene, locus T69C, C212T, A274G, G376A, G636A, T637C. 3 SNPs are nonsynonymous that change amino acid. But it is difficult to find correlation of feather color and polymorphisms. It will be needed to increase the population of Korean native chicken H breed and correlation analysis of genetic variation with feather colors.

• Korean Journal of Poultry Science
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• v.37 no.4
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• pp.355-360
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• 2010

To estimate the genetic characteristics within two brands of Korean native commercial chicken, we used a total of 302 genomic DNAs from two groups (Woorichicken: 152, Hanhyup3chicken: 150). Sizes of 10 microsatellite markers were decided using GeneMapper Software (v.4.0) after analyzing ABI 3130. Genetic diversity indices including expected heterozygosity (Ex H), observed heterozygosity (Ob H) and polymorphism information content (PIC). Frequencies of microsatellites markers were used to estimate heterozygosities and genetic distances. LEI0073 showed the highest value in all genetic diversity (Ex H, Ob H and PIC). On the other hand, MCW322 showed the lowest value in all genetic diversity. The calculated genetic distance of the two brand groups is 0.199 (standard genetic distance) and 0.132 (DA distance). Genetic distances of the two groups were relatively close to each other. Each individual is ramified to two brand groups in phylogenetic dendrogram.