• Title/Summary/Keyword: Native Resources

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Characteristics of Seed Germination and Bulb Dormancy in Korean- Native Allium victorialis L. (韓國産 산마늘 種子의 發芽와 種球의 休眠 特性)

  • 강치훈;홍정기;최병곤;방순배;박영학;한종수
    • Korean Journal of Plant Resources
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    • v.13 no.3
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    • pp.219-226
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    • 2000
  • The experiments were conducted to investigate the characteristics of the seed germination and the bulb dormancy in Korean-native Allium victorialis L. by the physicochemical treatments. The characteristics of two Allium victorialis seeds was similar in shape, color and threshing but different in other characters. Weight of 1,000 grains in Ullrung-native was 14.8g corresponding to 2.1 times as compared with Odae-native. Seeding immediatly after seed collection of Ullrung-native only germinated and chemicals didn't affect in germination improvement. The germination rate, average days to germination and coefficient of germination of Ullrung-native was 86%, 42 days and 2.05 at the dark condition of control, respectively. The germination rate, average days to germination and coefficient of germination of Odae-native was 70%, 47 days and 1.5 at the dark condition of control and 82%, 47 days, 1.75 at the light condition after 5$^{\circ}C$ prechilling for 30 days, respectively. The bedding days to reduce the physiological dormancy in the bulb of Odae-native assumed to be appropriate up to 45 days after the first prechilling.

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Cloud-Native Expansion: Strategies for Encouraging Cloud Adoption in the Public Sector Through Qualitative and Quantitative Research Methods (Cloud-Native의 확산: 정성적·정량적 연구기법을 이용한 공공부문의 클라우드 활성화 방안)

  • Yi, Jaehyuk;Kim, Sanghyun
    • The Journal of Bigdata
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    • v.8 no.2
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    • pp.55-71
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    • 2023
  • Cloud Native refers to the Technical Maturity Level of a cloud environment that can utilize all cloud resources to fully function. In converting public sector information resources to the cloud, the characteristics of the cloud are not being used well. Therefore, in this study, the qualitative research method cloud expert interview technique and the quantitative research method used text network analysis for domestic and foreign related articles. Through this, we analyzed the utilization trends related to domestic and foreign cloud natives and the cloud policies of developed countries. Through previous research, the core components of cloud-native were examined, and the need for agile methodologies that were not addressed in previous studies was raised. It is believed that these core components will be applied in the public sector to contribute to business innovation through digital innovation. In addition, this study aims to provide important implications for the use of cloud native in Korea through an in-depth discussion on how to spread cloud native in the public sector.

Insertional Variations of Two Porcine Endogenous Retroviruses (PERVs) in Korean Native Pigs and Asian Wild Boars

  • Jung, K.C.;Yu, S.L.;Kim, T.H.;Jeon, J.T.;Rogel-Gaillard, C.;Park, C.S.;Jin, D.I.;Moran, C.;Lee, J.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.20 no.4
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    • pp.461-465
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    • 2007
  • Porcine Endogenous Retroviruses (PERVs) are a major concern in relation to xenotransplantation. Previous research indicated that PERVs are present at about 50 copies in the pig genome and their chromosomal insertion sites are different among pig breeds. We examined nine Korean native pigs and seven Asian Wild Boars for the presence of a PERV-A at SSC 1q2.4 and a PERV-B at SSC 7p1.1-2 previously reported in a Large White pig. The PERV-B at locus 7p1.1-2 displayed insertional variability in Korean native pigs and Asian Wild Boars. Using the primers for the PERV-A at 1q2.4 from Large White pig, we only can amplify an unclassified 798 bp sequence, which showed insertional variability only in Korean native pigs. This study indicates that there are differences within and between Asian and European pigs in PERV insertions and suggests that selection could generate PERV-free lines of pigs more suitable for xenotransplantation.

Timed Artificial Insemination or Embryo Transfer using CIDR, Estradiol Benzoate and Prostaglandin $F_{2{\alpha}}$ for the Rebreeding of Korean Native Donor Cattle

  • Son, Dong-Soo;Choe, Chang-Yong;Cho, Sang-Rae;Choi, Sun-Ho;Kim, Hyun-Jong;Lee, Je-In;Kim, Ill-Hwa
    • Journal of Embryo Transfer
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    • v.23 no.2
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    • pp.81-86
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    • 2008
  • This study compared the pregnancy rates of Korean native donor cattle after either a timed artificial insemination (TAI) or embryo transfer (TET) following the synchronization of ovulation using a controlled internal drug release (CIDR) device together with estradiol benzoate (EB) and prostaglandin $F_{2{\alpha}}$ ($PGF_{2{\alpha}}$). Fifty five cows and 8 heifers which had been previously used for embryo production were assigned to two treatments: (1) Thirty-two cattle received a CIDR device and 2 mg EB (Day 0), 25 mg $PGF_{2{\alpha}}$ injection at the time of CIDR removal on Day 7, and 1 mg EB injection on Day 8. All of the cattle received a TAI 30 h (Day 9) after the second EB injection (TAI group). (2) Thirty-one cattle received the same hormonal treatments as in the TAI group. The cattle with corpus luteum (CL) received a TET on Day 16 using frozen-thawed embryos (TET group). Ultrasonographic observations demonstrated that the proportion of cattle with synchronized ovulation on Day 10 and the concomitant formation of new CL on Day 13 did not differ between groups (p>0.05); the overall mean rates were 65.1 and 73.0%, respectively. The conception and pregnancy rates did not differ (p>0.05) between the TAI (12.5% and 12.5%) and TET groups (13.0% and 9.7%), respectively. We conclude that the pregnancy rate following TAI or TET in Korean native donor cattle was poor, which might be due in part to a poor synchrony of ovulation and concomitant CL formation.

A Case of Superfetation in a Korean Native Cow (한우에서 중복임신 사례)

  • Son Dong-Soo;Kim Chong-Dae;Cho Chang-Yeon;Jin Hyun-Ju;Yeon Seong-Heum;Choe Chang-Yong;Choi Sun-Ho;Kim Hyun-Jong;Han Man-Hye;Kim Young-Kun
    • Journal of Veterinary Clinics
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    • v.23 no.2
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    • pp.207-210
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    • 2006
  • A probable case of superfetation in a Korean native cow met in a small farm located in Imsil Gun, Chonbuk. The cow delivered twice a living male and female calves in September 4 and December 9, 2004, respectively. Thus, we determined whether this case is a case of superfetation using parentage testing technique. The parentage testing was carried out for a dam and two calves using microsatellite DNA and blood typing. As the calves had at least one of the alleles on all marker tested that existed in dam, it was estimated that both of the calves were offsprings of the cow, and that they came from superfetation.

EFFECT OF SUPPLEMENTATION AND PARASITIC INFECTION ON PRODUCTIVITY OF THAI NATIVE AND CROSS-BRED FEMALE WEANER GOATS I. GROWTH, PARASITE INFESTATION AND BLOOD CONSTITUENTS

  • Pralomkarn, W.;Kochapakdee, S.;Choldumrongkul, S.;Saithanoo, S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.7 no.4
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    • pp.547-554
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    • 1994
  • This paper presents the effects of supplementary feeding and internal parasites on the growth rates of female weaner goats raised under improved management. A completely randomized $3{\times}3{\times}2$ factorial design was used. Factors were genotype (Thai native: TN, 75% TN $\times$ 25% Anglo-Nubian: An and 50% TN $\times$ 50% AN), feeding grazing only, low (1.0% BW/d) and high (1.5% BW/d) supplementation and parasite control (undrenched and drenched). It was shown that native goats had significantly (p<0.05) higher growth rates than did the cross-bred goats from 12-24 weeks of the trial. The growth rate of goats grazing improved pasture depended on the amount of concentrate offered as a supplement. There was no significant difference in growth rates between undrenched and drenched goats. There was no interaction effect on growth rates between the treatments. Drenched goats had significantly (p<0.01) lower egg counts per gram of gastro-intestinal nematode than did undrenched goats. There was no significant difference between the treatments for blood constituents (total protein, haemoglobin, packed cell volume, eosinophils, lymphocytes, monocytes and basophils).