• Title/Summary/Keyword: forestry and fisheries

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Occurrence of Virulence Determinants in Fecal Enterococcus faecalis Isolated from Pigs and Chickens in Korea

  • Hwang, In-Yeong;Lim, Suk-Kyung;Ku, Hyun-Ok;Park, Choi-Kyu;Jung, Suk-Chan;Park, Yong-Ho;Nam, Hyang-Mi
    • Journal of Microbiology and Biotechnology
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    • v.21 no.12
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    • pp.1352-1355
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    • 2011
  • Forty-one Enterococcus faecalis (E. faecalis) isolates from feces of pigs and chickens in Korea were screened for the presence of virulence factors. Gelatinase activity (85.4%, 35/41) was the more commonly observed phenotype of virulence in E. faecalis, compared with hemolytic activity (12.2%, 5/41). Thirty-one of 35 (88.6%) gelatinase-positive E. faecalis isolates harbored the gelE and fsrABC genes. A gene encoding for the enterococcal surface protein (Esp) was detected in 24.4% (10/41) of the isolates. All beta-hemolysin-producing isolates harbored the esp gene.

Genetic characterization of bovine rotavirus isolates in Korea

  • Yang, Dong-Kun;Kim, Byoung-han;Lee, Kyung-Woo;Kim, Yeon-Hee;Song, Jae-Young;Park, Joong-Won;Son, Seong-Wan
    • Korean Journal of Veterinary Research
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    • v.48 no.4
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    • pp.423-429
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    • 2008
  • Throughout the world, rotavirus infections cause extensive morbidity in human infants and diarrhea in animals such as white scour caused by bovine rotavirus in calves. We isolated three rotavirus strains designated KV0407, KV0418, and KV0426 from 103 fecal samples of diarrheic calves. The genes coding for proteins VP4, VP6, VP7, and NSP4 from strain KV0407 were sequenced and compared with the nucleotide sequences of other known strains of rotavirus. The KV0407 VP4 gene was highly homologous to the OSU (99.4%) and JL94 (99.4%), but not the B223 (62.4%) and K33 (62.4%) VP4 genes. The KV0407 and KV0418 VP7 genes were most similar to the OSU and super-short type VMRI VP7 genes. Based on nucleotide sequence analysis, the KV0407 strain was tentatively assigned to A serogroup (SG I), G5P[7], NSP4 genotype B and the KV0418 and KV0426 strains were assigned to A serogroup (SG I), G6P[5], NSP4 genotype A. The genetic characterization of these bovine rotavirus isolates could be useful for the diagnosis and prevention of diarrhea in calves.

A Study on the Development of Skill Framework for Agriculture, Forestry and Fisheries Sector (농림 및 수산분야 직무체계 개발 연구)

  • Park, Jong-Sung;Ju, In-Jung;Kim, Sang-Jin
    • Journal of Agricultural Extension & Community Development
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    • v.17 no.3
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    • pp.607-637
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    • 2010
  • The goal of this study is to develop a skill system for the areas of agriculture, forestry and fisheries among the skill frameworks that require basic examination in the development of skill standards. More specifically, the study aims to classify skills in the areas of agriculture, forestry and fisheries and to develop respective skill level. We classified skills and created the skill level through a study of documents, interview with experts and in-depth discussions with expert group centering on terminologies commonly used in the industrial settings. As a result of skill classification, we were able to classify skills into four categories in medium-scale classification, 13 categories in small-scale classification, and again into total 42 categories. We classified the skill level in the areas of agriculture, forestry and fisheries into 8 stages. Based on the skill system, we provided definition of skill and skill group, definition of each different skill, and performance standard by skill and level.

An Analysis on the Less Favored Condition of Fishing Village in Korean Island Regions using Census of Agriculture, Forestry and Fisheries (도서지역 어촌의 조건불리성 분석: 농림어업총조사 자료를 이용하여)

  • Kim, Bong-Tae
    • The Journal of Fisheries Business Administration
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    • v.48 no.4
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    • pp.11-25
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    • 2017
  • The purpose of the study is to analyze the status and trend of less favored condition of fishing village in Korean island regions using the census of agriculture, forestry and fisheries. The less favored condition was measured as the difference in accessibility to major services and in fishery sales and resident infrastructure, applying the difference-in-difference method and propensity score matching method respectively. The result shows that access to major services has improved in island area between 2010 and 2015, implying that related policies such as the island comprehensive development project have been successful to some extent. However, some educational facilities, cultural facilities, and health facilities still have low inaccessibility and fishery sales are also significantly lower than in general area. This suggests that it is necessary to maintain related policies like the direct payment of fisheries.

Growth Characteristics of Zelkova serrata Seedlings as Affected by Mixed Nursery Soil (상토의 조성에 따른 느티나무 묘목의 생육특성)

  • Lee, U.Y.;Youn, K.K.;Shim, Y.J.;Lee, EJ.;Lee, K.C.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.22 no.2
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    • pp.17-22
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    • 2020
  • This study was conducted to find out the optimum composition of nursery soil for raising seedling of Zelkova serrata. The treatments were regulated with the three different soil types : full peat moss(PM 100%), peat moss + perlite + vermiculite(1:1:1), peat moss + perlite + vermiculite(1:2:1). The full peat moss(PM 100%) showed the highest photosynthetic activity such as maximum photosynthesis rate(PN max), water use efficiency(WUE), Fv/Fm, PIabs and SPAD value. And also, full peat moss(PM 100%) showed relatively better growth performances. As a result of surveying the whole experiment, full peat moss(PM 100%) soil increases growth performances and enhances overall quality.

Seed Storage Method and Seed Germination Characteristics of Synurus deltoides(Ait.) Nakai (수리취의 종자저장 방법과 발아특성)

  • Noh, H.S.;Kwon, H.K.;Sung, J.W.;Shim, Y.J.;Lee, K.C.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.24 no.1
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    • pp.29-35
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    • 2022
  • This study was conducted to investigate the seed storage method and seed germination characteristics of Synurus deltoides (Ait.) Nakai, a kind of wild vegetables. Several parameters affecting seed germination, such as germination temperature, chilling duration, imbibition duration, and storage method were evaluated. The seed germination of Synurus deltoides showed the highest germination rate (GR), promptness index (PI), germination performance index (GPI), mean daily germination (MDG) at 25℃. This implies that the optimum germination temperature was 25℃. And also, Seeds stored at -4℃, after 150 days showed relatively high germination rate about 98%. Therefore, The optimum germination temperature of Synurus deltoides was 25℃ and to increase the germination rate over 98% of Synurus deltoides, cold-wet storage 20 days treatments at 4℃ were effective in the improvement of seed germination.

Data Modeling of FRIS Standard Information (FRIS 표준정보 및 데이터 모델링)

  • Yang, Jin-Hyuk;Kim, Sung-Il;Kim, Hye-Jin;Yoon, Ki-Ho
    • Proceedings of the Korean Information Science Society Conference
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    • 2012.06c
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    • pp.137-138
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    • 2012
  • FRIS 표준정보는 농림수산식품분야 R&D정보의 체계적인 수집, 연계 및 공동활용을 위한 정보이다. 본 논문에서는 FRIS 표준정보와 그 데이터 모델링 결과를 제시함으로써, 농림수산식품분야의 R&D관리기관 업무 담당자들과 연구수행자들에게 FRIS에서 수집, 공유, 활용되는 R&D정보에 대한 이해와 활용을 증진 시키고자 한다.

Development of PCR-based DNA markers for identification and detection of Trichoderma species associated with the green mold disease of oyster mushroom (느타리버섯 푸른곰팡이병에 관여하는 Trichoderma 속균의 동정 및 검출을 위한 PCR 기반 DNA 마커 개발)

  • Park, Myung Soo;Seo, Geon Sik;Ryu, Jae San;Kim, Min Kyung;Lee, Yong Kuk
    • Journal of Practical Agriculture & Fisheries Research
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    • v.24 no.3
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    • pp.5-14
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    • 2022
  • Trichoderma is known as pathogen caused serious green mold disease on commercial production. T. pleuroti and T. pleuroticola were common species in various mushroom media. Many strains of T. pleuroti, known as aggressive species causing major economic losses in Korea, showed benomyl resistance. Accurate identification and detection of Trichoderma species associated with oyster mushrooms is very important for disease control. We developed species-specific primers for T. pleuroticola, T. pleuroti, T. harzianum, and T. atroviride based on species-specific fragments isolated from amplified fragment length polymorphism analysis. PCR products corresponding to the predicted fragment of 500bp, 230bp, 180bp, and 410bp were amplified from T. pleuroticola, T. pleuroti, T. harzianum, and T. atroviride, respectively. Multiplex PCR assay using species-specific primers quickly and accurately identified and detected T. pleuroti from mushroom media in which various species co-exist. Our results can be useful for the effective control of mushroom disease.