Kim, Jae-Hwan;Cho, Chang-Yeon;Choi, Seong-Bok;Cho, Young-Moo;Yeon, Seung-Hum;Yang, Boh-Suk
Journal of Life Science
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v.21
no.9
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pp.1329-1335
/
2011
Korean native goats, which are characterized by black coat color, have existed on the Korean peninsula for a long time. Until now, there has been no comprehensive investigation concerning their genetic diversity, phylogenetic analysis or origin. In this study, we investigated the genetic diversity and verified phylogenetic status of the Korean native goat using the 453-bp fragment of the hypervariable fragment I (HVI) of mitochondrial DNA (mtDNA) D-loop region from 60 individuals among 5 populations. The Korean native goat showed less haplotype diversity when compared with goats from other countries. In addition, 6 haplotypes that had not been previously reported were verified in this study. In phylogenetic analyses with other country's goats, 10 haplotypes from Korean native goats were classified into mtDNA lineage A. Moreover, in a phylogenetic tree for goats which contained mtDNA lineage A, 8 of 10 haplotypes could be included in a subgroup with goats from Vietnam and an area of China. However, none of the remaining haplotypes belonged to a major group of Korean native goats and were located on different independent positions. These results suggest that almost Korean native goats aligned more closely to China and Vietnam breeds in mtDNA lineage A and there was no gene flow from other mtDNA lineages. Our results will contribute to conservation strategies and genetic breeding of Korean native goats.
This study was carried out to investigate consciousness level of physical exercise and analyze factors affection to the practice of exercise. The main purpose of the study was to give basic and necessary data in developing of program regarding to the physical exercise of the people and social athletics. This study was conducted by trained surveyers, for dweller in three cities(Seoul, Taegu and Ulsan) during January 4. 1990 to January 24. 1990. The results of this study can be summarized as follows 1. The subject of criticism an investigation for general charactristic be conducted in Seoul, Taegu and Ulsan city area an objective 417 person, 432 person and 366 person was among those comparatively little more by male was higher rate than female. Those in classification was adopted by age group 20 years old adult 41.3% of most higher rate, age group evaluation, were 24.9% and other group were 18.4% comprehensively appearanced by adult group has most many value rate. 2. An objective of investigation survey was made to personnel were comparative an educated level significantly higher such as college graduated 48.8% this rate of value has most higher, High school graduated ; 30.1% and middle School gratuated were 11.7%. In addition the native comes from large city, Farming and fishing villages an rural area rate were shown as 29.6%, 28.4% and 19.9% each other. There by classification of occupational job was shown by students has 27.4% are most higher significantly, also there sales and service field job appearanced 15.1% and expert technical job is 9.0% Although nonreligion person rate were 37.3%, buddist, Christianity, Roman Catholicism all them each other shown 33.6%, 16.7% and 12.4%. An evaluation in economic situation value rate was appearanced by middle class level 61.7% and higher and low level are 14.4% and 23.9% with each other and married were 59.2%. 3. The people resident in cities area has pratice of health development by exercise person were 43.5% and value of rate for male has exercise practice is 52.5%, was significantly higher than female has by age group 10 years old and age group 50 years old is 52.6% and 47.3% was comparative higher rate also age group 30 is 35.1% of low factor was indicated. Although evaluated an economic situation rate was higher level get more taken the practice of health develop exercise(higher level 60.0% and low level is 32.9%). Although by higher level of educated were more taken pratice of their proper physical exercise(college graduated rate ; 52.2% of most higher and high school graduted ; 39.7% and then middle school graduated is 19.1%) unmarried taken exercise rate ; 48.4% is significantly higher than married person rate ; 40.8%. Although objective of native area of exercise rate of Urban area cities ; 52.5% are significantly higher farming and fishing native person rate ; 40.4% shown is most low.
The study was aimed at identifying the globule leukocytes (GL) of tracheal mucosa layer of Korean native cattle showing symptom of pneumonia which have died as enterotoxemia and normal Korean native cattle in Kyungpook local area. In another set of experiment, Isolated Klebsiella pneumoniae from suddenly died cattle specimens was subjected to rat for a determining globule leukocyte appearance by using histochemical and immunohistochemical method. In histochemical study, globule leukocytes generally was existed in all the case of postmortem of Korean native cattle and 3 heads of slaughtered cattle which showing symptoms of pneumonia and it showed significant increase in tracheal mucosa of rats experimentally infected with Klebsiella pneumoniae. These increased number of globule leukocytes was moderately remained on early infection stage and gradually decreased in timedependent manner after infection. The granule patterns were also determined as an acidmucopolysaccharide. In immunohistochemical study, serotonin intensity in the treacheal mucosaepithelial cells of rat experimentally infected observed a strong immunoreactivity during early infection and gradually decreased in dependent of infection stage while no IgE immunoreactivity observed. These data show that globule leukocytes were increased in a pneumonia, therefore it was considered as a valuable cell that was associated with early stage of inflammatory response.
Journal of the Korean Society of Environmental Restoration Technology
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v.11
no.2
/
pp.123-132
/
2008
The problems caused by new biological organisms in Ogasawara Island of Japan include : (1) loss of native species' habitats and extinction of native species due to the multiplication of invasive species; (2) reduction of native species and confusion in the food chain in result of invasive species' predation; (3) confusion in genes due to hybridization of new and native plants; and (4) destruction of ecosystem and erosion of earth due to rapid increase of invasive species. The natural ecosystem of preserved areas in Korea is constantly confused and destroyed by new animals and plants, but Korea does not has any solutions because new animals and plants rarely affect human lives. Invasive species are manually introduced by humans and are considered disasters caused by humans. Korea is in desperate need of campaigns as the general public does not understand the seriousness of the destruction and confusion of natural ecosystem caused by new biological organisms and their indirect/direct influences on humans. It is necessary to evaluate the biological characteristics, ecological influence, and harms of invasive species in preserved areas to establish a system to manage invasive species and plan the priority removal of species that are highly harmful and locally distributed. Manual removal and suppression of new biological organisms that cause problems is effective, but it takes cost, effort, and time. Therefore, we would need to research and develop the most efficient and effective techniques and measures to manage invasive species in our ecosystem.
Species are constantly using for clothing, food, shelter and health are distributed in various places. Convention on Biological Diversity made for conserve resources and enhance the value in many countries around the world. Each country is in the process of building a database for to protect the native biological resources and establish sovereignty. This studies analyzed the distribution of such traditional knowledge of native biological resources and builded a database through using standardized form of collected data made by our research. The result, almost native biological resources used for food and medical treatment.
Centella asiatica (CA) is a vegetable that has been used for medicinal purposes for a long time, but it is not well known in Korea. In this study, the approximate analysis, physicochemical properties, free sugars, free amino acids and minerals of native and improved CA cultivated in Chungju area were measured. And the antioxidant contents and activities of CA solvent extracts were measured. There was no significant difference between native and improved species. As for the characteristics of CA, it was confirmed that the improved species had a large weight, size and a tough texture. Glucose was detected in native CA, fructose, glucose and sucrose were detected in improved species. A total of 15 free amino acids were detected and the content was slightly higher in improved species than in native species. The mineral content in CA was slightly higher in the improved species, and the detected minerals were Na, P, Ca, K, Mg and Fe. Polyphenols, ascorbic acid and flavonoids in each extraction solvent (water, 70% and 100% ethanol) were all higher in the improved species than in native species. And it was found that the antioxidant activities of ethanol extracts were higher than that of water.
Young-Jin Choi;Sang Uk Chung;Na Yeon Kim;Mirae Oh;Se Young Jang;Young Sik Yun;Sang Ho Moon
Food Science and Preservation
/
v.30
no.1
/
pp.15-27
/
2023
Jeju Sasa borealis (S. borealis) is indigenous to the Halla Mountain area of Jeju Island, Republic of Korea. However, its dominance has retarded the development of other plant species and lowered biodiversity in this region. The aim of this study was to determine whether S. borealis silage (SS) supplementation affects the chemical composition and antioxidant activity in the fresh meat of Korean native goats (Capra hircus coreanae). The experiment was conducted on 12 Korean native goats at the finisher stage. The feeding groups were the Control (total mixed ration, TMR) and the Treatment (80% TMR + 20% SS). The animals were adapted for two weeks and then subjected to a six-month breeding experiment. Meat samples were excised from the neck, loin, rib, front leg, and hind leg of the slaughtered animals. The meat derived from the treatment group contained more taurine and anserine than that derived from the control group. Both groups did not significantly differ in terms of ω-6/ω-3 fatty acid ratio. The loin and front leg of the treatment group contained significantly higher vitamin E levels than those of the control group. DPPH, ABTS, and FRAP analyses disclosed that the loin and front leg had significantly higher antioxidant activity (p<0.05) than the other parts. Moreover, the loin and front leg cuts of the treatment group had higher antioxidant activity than those of the control group. The present study demonstrated that S. borealis supplementation could effectively improve Korean native goat meat quality.
Nanji-do is an island in Seoul, the area is 272ha, and in which gad was piled up waste discharged from Seoul metropolitan for 15 years(form March 1978 to March 1993). The volume of waste is 92, 000, 000m$^{2}$. The actual vegetation area of Nanji-do is 191ha, and the area of woody plant is 31ha. The rest area is covered by herbaceaus plant. In actual vegetation area of woody plant, Robinia pseudoacacia community and Salix pseudo-lasiogyne community are 83%. The soil pH is alkaline, though general soil pH is acid in Seoul. There is no relation with soil condition and actual vegetation. The result of this study, actual vegetation of Nanji-do don't help the establishment of vegetation restoration after soil stabilization construction. And so following a countermeasure is proposed. 1) Selection of adequate species by an experiment of planting pioneer species, native species, and dietary species 2) Establishment of an adequate planting plan and development of slope stabilization method by planting of native species 3) Establishment of a restoration plan of animal ecosystem by survey for animal ecosystem
DMZ (De-Militalized Zone) in South Korea is world heritage area by passage control of human-being for more than 50 years since 1953. Wild flora and fauna in these area have been protected from any development and/or habitat destruction. However, consideration on ecosystem and nature in the area is becoming higher, and demand for development is raising also. We have reviewed any publications, which are surveyed about ecosystem and interview local residents about wildlife inherit there. Totally 51 species have been reported inhabited DMZ belonging to 17 Families, 6 Orders, so far. National monuments in DMZ are following; Asiatic black bear (Ursus thibetanus), Eurasian otter (Lutra lutra), Musk deer (Moschus moschiferus), KOREAN goral (Nemorhaedus caudatus), flying squirrel (Pteromys volans) and spotted seal (Phoca vitalima). These results would be an essential data to establish management strategy and manuals for conserving native ecosystem, native flora and fauna in DMZ, and also using for registering world heritage area under UNESCO.
Kim, Moo-kang;Cho, Sung-whan;Ryu, Si-yun;Kim, Kyo-joon;Kim, Song-keun;Shin, Ta-kyun;Lee, Gang-iee
Korean Journal of Veterinary Research
/
v.29
no.1
/
pp.1-6
/
1989
The number and distribution of the retinal ganglion cells in the 2 years old Korean native cattle was determined from whole fiat mounted preparation stained with methylene blue and thionin. The results were summarized as follows. 1. The total number of retinal ganglion cells was estimated to be 3,085,200 in the bovine retina ranging from $2,214mm^2$ in total area. 2. Visual streak was recognized at the area 2.5mm superior to the optic disc and ganglion cell density drops off rapidly to the directions superior to and inferior to the visual streak. 3. Area centralis ($6,800cells/mm^2$) was located at the area 10mm temporally from the point of 3mm superior to the optic disc. 4. The number of ${\alpha}-type$ ganglion cells (above $15{\mu}$) was 57,000 in the bovine retina and ${\alpha}-type$ ganglion cells constituted 18.5% of the total cells. 5. The relative frequency of ${\alpha}-type$ ganglion cells was higher in the peripheral regions than in the visual streak, especially higher in the superior-temporal quadrant than in other region of the bovine retina.
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