• 한국농공학회지
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• 제63권3호
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• pp.10-16
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• 2021

• 한국물환경학회지
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• 제38권6호
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• pp.316-326
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• 2022

This study aimed to investigate the causes of the increasing Total Phosphate(TP) in the mainstream of Mangyeong river over the past 10 years, and suggested a reduction plan of about 3 points. First, the high TP concentration was continuously released in the discharge outlet of the Haepo bridge stormwater pipeline. The average TP concentration was 5.066 mg/L and values as high as 29.470 mg/L were measured. The highest pollution contribution rate to the Mangyeong river was more than 70 %. The cause of the pollution was expected to take place somewhere in Wanju Industrial Complex. Second, the average TP concentration of wastewater-treated effluent in the H factory was 0.405 mg/L. If a TP reduction facility is additionally installed in the H factory, it will help reduce TP uptake by Lake Saemangeum. Third, the TP concentration of untreated non-point source point flowing into the Samrae stream was very high with an average of 2.828 mg/L. Also, the pollution contribution rate of Samraecheon 2 to Mangyeong river was 21.8 % on average and up to 58 %. The pollution contribution rate was also high during the agricultural season and the winter, during which the flow rate is decreased. Investigation of these three points may be continuously needed, and analysis results and policy proposals presented to Jeollabukdo and Wanjugun to manage pollution sources.

• 한국도서관연감
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• 2005호
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• pp.33-74
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• 2005

• 한국도서관연감
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• 2004호
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• pp.29-67
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• 2004

• 한국동물위생학회지
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• 제44권2호
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• pp.73-83
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• 2021

Although many swine farms continuously vaccinated to sow to prevent Porcine epidemic diarrhea(PED), PED has occurred annually in swine herds in Jeonbuk province, Korea. In the present study, the small intestine and feces samples from 17 farms where severe watery diarrhea and death of newborn piglets occurred in 2019 were collected, amplified by RT-PCR and determined the complete nucleotide sequences of the spike (S) glycoprotein genes of nine Jeonbuk PEDV isolates. The spike (S) glycoprotein is an important determinant for molecular characterization and genetic relationship of PEDV. These nine complete S gene isolates were compared with other PEDV reference strains to identify the molecular diversity, phylogenetic relationships and antigenicity analysis. 9 field strains share 98.5~100% homologies with each other at the nucleotide sequence level and 97.3~100% homologies with each other at the amino acid level. The nine Jeonbuk PEDV isolates were classified into G2b group including a genetic specific signal, S-indels (insertion and deletion of S gene). In addition, comparisons the neutralizing epitopes of S gene between 9 field strains and domestic vaccine strains of Korea mutated 12-15 amino acids with SM-98-1 (G1a group) and mutated 0-3 amino acids with QIAP1401 (G2b group). Therefore, the development of G2b-based live vaccines will have to be expedited to ensure effective prevention of endemic PED in Korea. In addition, we will need to be prepared with periodic updates of preventive vaccines based on the PEDV variants for the re-emergence of a virulent strain.

• 한국동물위생학회지
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• 제47권1호
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• pp.9-17
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• 2024

Porcine epidemic diarrhea (PED) is a highly contagious enteric viral disease of pigs with watery diarrhea in piglets, which ultimately results in huge economic losses in the swine industry. The spike (S) protein plays an important role in viral pathogenicity, tissue tropism, infection, dissemination and the trypsin-dependent proliferation of the PED virus (PEDV). In the present study, we determined the full-length spike (S) gene sequences of twenty PEDV field strains detected in Jeonbuk province in 2022. Phylogenetic analysis showed that the twenty PEDV field strains were classified into G2b group and shared 98.6~100% of nucleotide homology and 97.4~100% of amino acid homology with each other. Mutations of amino acid sequences on the neutralizing epitope of S protein were observed in the twenty field strains compared to the previous vaccine strain SM-98-1 (G1a group). Therefore, these amino acid mutations in the PEDV S protein may result in a new genotype of the virus and highly pathogenic virus, so continuous monitoring is required.

• 건강소식
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• 제32권7호
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• pp.32-33
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• 2008

한반도 서남부에 위치한 전라북도는 산과 들, 바다가 어우러진 아름다운 지역이다. 동쪽은 높고, 서쪽은 낮은 계단식 지형을 이루고 있는 쌀의 주산지로 한국농업의 상징인 곳이다. 전라북도의 자치행정을 관장하는 지방행정기관 전라북도 도청은 전주시 완산구 효자동에 자리 잡고 있다. 복지 공동체 구현, 선진농업 육성, 지역경제의 발전, 문화관광 특성화 등의 사업을 추진 중인 전라북도는 지역민들이 쉽게 문화나 여가를 즐길 수 있도록 편의시설을 두루 갖춘 곳이기도 하다. 특히 새만금 사업과 태권도 공원을 추진 중에 있는 등 지역발전에 앞장서고 있다. 그리고 무엇보다 전라북도는 한국건강관리협회 전북지부와 함께 지역주민들에게 더 나은 삶을 제공하고 건강한 신체와 건강한 정신을 추구하고자 건강검진 사업을 활발히 진행할 예정에 있다.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2019년도 하계 학술발표초록집
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• pp.311-312
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• 2019

• 종축개량
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• 제18권4호
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• pp.45-50
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• 1996

• 화훼연구
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• 제19권4호
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• pp.225-230
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• 2011

본 연구는 춘란 품종간의 유전적 유연관계를 밝혀 교배육종에 기초자료로 활용하기 위하여 수행하였다. 춘란 수집종 20 품종에 대하여 형태적 특징 19가지를 조사하여 유연관계를 분석하였다. 20개 수집품종들은 크게 2군으로 분류되었으며, I군에는 7개의 수집 품종이 속하였고, II군에는 13개의 수집 품종이 속하였다. I군에는 잎에 무늬가 없는 품종들로 구성되어졌으며, II군에는 무늬가 있는 품종들로 구성되어졌다. 10 종의 10 mer primer를 이용하여 RAPD 분석을 통해 유전적 유연관계를 분석하였다. RAPD결과 총 89개의 band를 얻었으며 그 중 monomorphic band는 3개, polymorphic band 86개였다. 수집품종간의 전체적인 유사도는 0.521~0.862의 범위로 나타났다. 유전적 유연관계 또한 2군으로 분류되었으며, X군에는 16개의 수집품종이 속하였고, Y군에는 4개의 수집품종이 속하였다. 외형적특징을 이용한 분류와 RAPD를 이용하여 유전적 유연관계를 분류한 결과는 정확히 일치하지 않았지만 유전적 유연관계를 통하여 분류된 Y군의 품종들은 모두 외형적 특징을 이용한 분류의 II군에 포함되었다. 본 연구의 RAPD에 의한 유연관계분석에서 유사도가 낮은 품종간에 교배조합을 구성한다면 보다 높은 효율의 결과를 얻을 것으로 기대된다.