• Title/Summary/Keyword: Korean native

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Phylogenetic Analysis of a Privately-owned Korean Native Chicken Population Using mtDNA D-loop Variations

  • Hoque, M.R.;Choi, N.R.;Sultana, H.;Kang, B.S.;Heo, K.N.;Hong, S.K.;Jo, C.;Lee, Jun-Heon
    • Asian-Australasian Journal of Animal Sciences
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    • v.26 no.2
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    • pp.157-162
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    • 2013
  • The use of Korean native chicken is increasing, and the discovery of new genetic resources is very important from both economic and genetic conservation points of view. In this study, mtDNA D-loop sequences from 272 privately-owned Korean native chickens from a Hyunin farm were investigated. Seventeen nucleotide substitutions were identified from the sequence analysis and they were classified as 6 haplotypes. Previously investigated haplotypes in five Korean native chicken populations have been compared with the Hyunin chicken population. The results indicated that two haplotypes, H10 and H15, in the Hyunin chicken population were not previously identified in other Korean native chicken populations, representing 33.09% (90/272) and 1.1% (3/272) of the Hyunin population, respectively. On the other hand, four other haplotypes were identical to those of a previous study of Korean native chicken populations. This result is indicative of conservation strategies of Hyunin chicken populations for expanding the genetic diversity in the Korean native chicken population.

Who is More Effective in Teaching TOEIC, Korean or Native English Teacher?

  • Klemsen, Katie Mae;Seong, Myeong Hee
    • English Language & Literature Teaching
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    • v.18 no.1
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    • pp.133-151
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    • 2012
  • This study investigates Korean university students' perception of TOEIC courses taught by Korean and native English teachers and test results in an effort to identify better methodologies to teach TOEIC. To find out the student's perceptions of TOEIC classes, a survey was conducted. The one hundred sixty students who attended the TOEIC courses participated in a questionnaire survey at the end of the semester. Based on a survey of students' assumptions toward TOEIC classes and teachers, this paper discusses the skills students feel important to improve their TOEIC scores and what their actual scores show. The research questions were: 1) what are some of the benefits of having a Korean or native English teacher for TOEIC courses? 2) what are some of the drawbacks of having a Korean or native English teacher for TOEIC courses? The results indicated that Korean and native English teachers have an equal chance to become successful teachers, but the methods used by the two groups are not the same in the context of teaching TOEIC courses; in the short term, direct test preparation, dictation and repetition by Korean or native teachers might be good methods for TOEIC courses, however, in the long term, conversation and discussion performed by native teachers may affect scores in a positive way.

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A Study on English Vowel Perception and Production by Native Korean Speakers

  • Han, Yang-Ku
    • Proceedings of the KSPS conference
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    • 2000.07a
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    • pp.332-332
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    • 2000
  • The purpose of this study is to investigate the perception and production of English vowels by native speakers of Korean. In perception test, twelve English vowels /${\ae},{\;}a,{\;}{\Game},{\;}e,{\;}{\varepsilon},{\;}i,{\;}I,{\;}a,{\;}o,{\;}u,{\wedge},{\;}{\mho}$/, as in had, hard, hoard, hayed, head, heed, hid, hod, hoed, whod, Hudd, and hood produced by native speakers of English were used as perception test materials and subjects were asked to identify the vowels. Two different groups of subjects participated in the perception test. One consisted of 90 students who were taking an English phonetics course, and the other consisted of 64 who were not. The results showed that the former did better than the latter m identifYing English vowels, and that vowels in 'head' and 'had' were relatively hard to identify, while vowels in 'hayed', 'hard', and unexpectedly, 'heed' and hid' were easy to perceive. In production test, two native English speakers and 4 native Korean speakers served as subjects. The 4 native Korean speakers were divided into two groups as in the perception test, experienced and inexperienced, depending on whether they were taking an English phonetics course or not. Native English speakers generally showed significant differences both in vowel duration and in FI & F2 values between members of the vowel pairs which are of special interest of this study: /i/ vs. /I/, /${\ae}$/ vs. /$\varepsilon$/, and /u/ vs. and /$\mho$/. There was no significant difference between the two Korean groups. Native Korean speakers showed much difference in neither duration nor FI & F2 values except significant durational difference in /i/ vs. /I/ pair.

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The karyotype of Korean native goat (capra hircus) (한국재래산양의 핵형분석)

  • Oh, Seung-hyun;Yun, Young-min;Yoon, Yeo-sung;Lee, Joon-sup;Lee, Heungshik S.;Seong, Je-Kyung
    • Korean Journal of Veterinary Research
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    • v.39 no.5
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    • pp.908-920
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    • 1999
  • We investigated the cytogenetic characteristics of Korean native goat(Capra hircus). Chromosome slides were prepared from peripheral blood cell cultures. GTG, GBG, RBG and CBG-banding techniques were employed on those slides. The high resolution karyotype of Korean native goat could be made with the incorporation of BrdU. Korean native goat has 60 chromosomes composed of 58 autosomes and XY or XX sex chromosomes. All of autosomes of Korean native goat were acrocentric chromosomes. X chromosome was submetacentric and Y chromosome was metacentric. The GTG, GBG and RBG-band patterns of Korean native goat were similar to those of other goats. CBG-band regions were distinct at the proximal portion of the long arms of all autosomes in Korean native goats. According to our investigation, there was no significant difference in chromosomal band patterns between Korean native goat and other goats. It might be necessary to use molecular genetic markers for clarifying the genetical characteristics of Korean native goat whose biological characteristics are not clearly defined.

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Comparison of Meat Characteristics between Korean Native Duck and Imported Commercial Duck Raised under Identical Rearing and Feeding Condition

  • Muhlisin, Muhlisin;Kim, Dong Soo;Song, Yeong Rae;Kim, Hong Rae;Kwon, Hyung Joo;An, Byoung Ki;Kang, Chang Won;Kim, Hak Kyu;Lee, Sung Ki
    • Food Science of Animal Resources
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    • v.33 no.1
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    • pp.89-95
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    • 2013
  • This research was conducted to compare the meat characteristics of Korean native duck and imported commercial duck. The Korean native ducks and imported commercial ducks (broiler duck: Grimaud) were raised under identical rearing and feeding conditions for 8 wk and 6 wk, respectively. At the end of the rearing period, ten ducks from each group were slaughtered, and breast and leg meat were obtained 24 h after slaughtering for analyses of meat characteristics. The results showed that the breast of Korean native ducks contained lower moisture and fat, and higher protein and water holding capacity (WHC) than those of imported commercial ducks (p<0.05). The breast of Korean native ducks also had higher CIE $a^*$ and lower CIE $L^*$ (p<0.05). After cooking, the breast meat of Korean native ducks had higher shear-force, sensory attributes of texture, taste and overall likeness (p<0.05). Also, the breast meat of Korean native ducks contained a higher percentage of palmitic acid ($C_{16:0}$) and arachidonic acid ($C_{20:4}$) (p<0.05) than those of imported commercial ducks. Furthermore, the leg meat of Korean native ducks contained higher percentages of total unsaturated fatty acid and lower percentages of total saturated fatty acid (p<0.05). It is concluded that the meat from Korean native ducks, especially breast meat, had better quality parameters and contained higher amounts of unsaturated fatty acids.

Polymorphisms of Blood Proteins In Cheju Native Horses and Tsushima Native Horses (제주 재래마아 쓰시마 재래마의 혈액내 단백질의 다형)

  • 오유성;오문유;김세재;김기옥;고미희;모야박;양영훈
    • The Korean Journal of Zoology
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    • v.38 no.3
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    • pp.324-329
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    • 1995
  • The phylogenetic relationships between Cheju native horses and Tsushima native horses were studied by protein polymorphism analyses in 16 gene loci (Trypsin inhibitor: Ti, Chymotrypsin inhibitor: CTi, Albumin: Al, Esterase: Es, Transferrin: Tf, Hemoglobin: Hb, Catalase: Cat, Esterase D: EsD, Glutamate oxaloacetate transaminase: GOT, Glyoxalase I: GLO I, Acid phosphatase: AcP, Superoxide dismutase: SOD, Lactate dehydrogenase: LDH, Hexokinase: HK, Malate dehydrogenase: MDH, Malic enzyme: ME). All allelic patterns of the protein loci, except 5 loci (SOD, LDH, HK, MDH, ME), were polymorphic in both two populations. Gene frequencies of the polymorphic loci of the population of Cheju native horses were higher than those of Tsushima native horses. Average heterozygosity in Cheju native horses was 0.375, showing higher than that of Tsushima native horses (0.304). The Da distance and gene identity of two populations were 0.108 and 0.868, respectively. The phylogenetic tree constructed by these results and those previously reported in other horse populations, consisted of three clusters. From this phylogenetic tree, it could be suggested that Cheju native horses and Tsushima native horses had diverged from the Mongolian wild horse (Equus prsewolskii).

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A Case Study on Storytelling Application of Native Local Foods (향토음식의 스토리텔링 적용 사례연구)

  • Choe, Jeong-Sook;Park, Han-Sik
    • Journal of the Korean Society of Food Culture
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    • v.24 no.2
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    • pp.137-145
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    • 2009
  • The purpose of this study is to present the scheme that can enhance the value of native local foods by analyzing the case into which storytelling is incorporated in order to revitalize native local foods. Towards this end, the cases of native local foods throughout the country were recommended through professional survey and one region among them was finally selected through the field study. The survey on the native local foods was conducted through qualitative study. The four stages of storytelling: the findings of storytelling, the production of storytelling, the experience of storytelling, and sharing of storytelling were analyzed by stage and the contents of the survey by stage were developed. In the findings of story, the origins and background of the main family's foods and food-related stories were derived. The production of stories deals with how to convey the stories of surveyed native local foods to consumers and it presented the stories about the place and food menu. In the experience of storytelling, the physical environment and non-physical environment, in which people visit native local eating houses and experience native local foods were analyzed. Finally, in the sharing of story, how the tourists who have experienced the native local foods make stories and disseminate and share them was analyzed. The significance of this study is that through the storytelling technique it presented the findings, production, experience and sharing of native local foods in the level that can apply to practical business. Although the research is in the stage of inquiry, this study is meaningful in that it presented the basic methodology that can induce the revitalization of the native local food industry through examining the tradition and significance of native local foods that can be found in all the regions of the country.

Genetic Variation and Relationships of Korean Native Chickens and Foreign Breeds Using 15 Microsatellite Markers

  • Kong, H.S.;Oh, J.D.;Lee, J.H.;Jo, K.J.;Sang, B.D.;Choi, C.H.;Kim, S.D.;Lee, S.J.;Yeon, S.H.;Jeon, G.J.;Lee, H.K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.19 no.11
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    • pp.1546-1550
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    • 2006
  • The purpose of this study was to assess the genetic variation and establish the relationship amongst breeds and strains using 15 chicken specific microsatellite markers. A total of 285 unrelated DNA samples from four Korean native chicken strains (Black strain of Korean native chicken; KL, Red Brown strain of Korean native chicken; KR, Ogol strain of Korean native chicken; KS and Yellow Brown strain of Korean native chicken; KY) and three introduced chicken breeds (F strain of White Leghorn; LF, K strain of White Leghorn; LK, Rhode Island Red; RC and Cornish; CN) were genotyped to estimate within and between breed genetic diversity indices. All the loci analyzed in 15 microsatellite markers showed a polymorphic pattern and the number of alleles ranged from 5 to 14. The polymorphism information content (PIC) of UMA1019 was the highest (0.872) and that of ADL0234 was the lowest (0.562). The expected total heterozygosity (He) within breed and mean number of observed alleles ranged from 0.540 (LF) to 0.689 (KY), and from 3.47 (LK) to 6.07 (KR), respectively. The genetic variation of KR and KY were the highest and the lowest within Korean native strains, respectively. The genetic distance results showed that Korean native chicken strains were separated with the three introduced chicken breeds clustered into another group. The lowest distance (0.149) was observed between the KR and KL breeds and the highest distance (0.855) between the KR and LK breeds. The microsatellite polymorphism data were shown to be useful for assessing the genetic relationship between Korean native strains and other foreign breeds.

Comparing subjective landscape perceptions between the native and non-native residents in suburban rural area - Searching for a landscape management based on the characteristics of urban to rural migrants - (도시근교 농촌경관에 대한 거주민별 주관적 인식 비교 - 귀농·귀촌인의 특성을 고려한 경관관리 방안모색 -)

  • Lee, Cha Hee
    • Journal of Korean Society of Rural Planning
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    • v.26 no.3
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    • pp.13-24
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    • 2020
  • As the importance of rural landscapes has recently emerged due to an increase in number of urban to rural migrants into suburban area in Korea, this study empirically grasps the differences in subjective landscapes perceptions between native and non-native residents. and tried to explore new landscape management possibilities through the role of each residents group. To this end, based on the data collected through the 'photo-elicitation with walking', the residents' landscape perception objects, perception factors, and perceived feelings are derived, and then the differences and characteristics of landscapes perception between native and non-native residents group were analyzed. As a result, native residents perceived everyday landscapes relatively meaningfully and provided abundant information in all aspects, while non-native residents mainly recognized characteristic landscapes and responded more sensitively to visual and environmental perception factors than the natives. Non-native residents also showed strong willingness to improve the degraded landscapes. These results are expected to provide a basis for exploring the role of residents in rural landscape planning and management in the future.

A Study on Regional Native Chicken and Certification System in France - Focusing on Alsace, Bresse Region - (프랑스의 지역별 토종닭과 인증제도에 대한 연구 - 알자스, 브레스 지역을 중심으로 -)

  • Kim, Sumin;Lee, Dongmin;Moon, Junghoon
    • Korean Journal of Poultry Science
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    • v.45 no.1
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    • pp.41-51
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    • 2018
  • Recently, the Korean government has been trying to conserve the genetic resources of native chicken. Although the production aspect is important, consumers should also value the native chicken in order for this market to grow. As certification systems are used to inform consumers about the value of a product, this study aims to investigate certification systems for chicken in France. Two regions were selected: Alsace and Bresse. We conducted a value-chain analysis of activities related to native chicken in each of these two regions, including hatching, breeding, slaughtering and processing, distributing, and marketing activities. We found that various certification systems were used not only to inform consumers about the value of the native chicken but also to protect biodiversity. Also, geographical indication, one kind of certification system, was utilized to establish higher quality based on the characteristics of each region. Implications pertinent to a domestic certification system for Korean native chickens were suggested.