2010 해남, 평창, 원주지역 갈대 등 야초류의 이용실태와 사료가치 평가

서성(Sung Seo),한대덕(Dae Duk Han),장선식(Sun Sik Jang),김원호(Won Ho Kim),정민웅(Min Woong Jung),최진혁(Jin Hyuck Choi),김진숙(Jin Sook Kim),김하영(Ha Young Kim),이종경(Joung Kyong Lee) 한국초지조사료학회 2012 한국초지조사료학회지 Vol.32 No.1

본 연구는 부존 조사료자원 이용으로 수입사료를 줄이고 사료비를 절감하고자 2010년도에 전남 해남(간척지), 강원 평창(강변), 원주(섬강변), 전남 영광(와탄강변) 등 4개 지역에서 갈대와 억새 등 야초 자생지를 탐색하고, 수확·이용실태 조사와 함께 사료가치를 분석하였다. 전남 해남 해남목장 내 갈대(Phragmites communis) 위주의 야초 자생지는 300 ha로 예년에는 2회 곤포작업하여 연간 사일리지로 2,300~2,500톤(ha당 8톤)을 생산하였으나 2010년도는 1회 곤포조제로 사일리지 2,000톤(ha당 7톤)을 생산하였다. 유통가격은 롤 당 53천원으로 ㎏당 110원이었다. 곤포는 전량 자가소비하며, 외부 작업단에 롤 당 26천원의 작업비를 지불하였다. 연간 조수입은 2억 2,260만원이며, 소득은 1억원 수준(345천원/ha)이었다. 초장 150 ㎝의 갈대는 조단백질 8.4%, 상대사료가치 71.9 (건초 5등급), 건물 소화율 60.1%로 사료가치는 볏짚에 비해 약간 나은 것으로 평가되었다. 갈대 사일리지의 사료가치와 유기산 함량은 동일 지역에서 동일한 재료로 사일리지를 조제하더라도 수확시기에 따라 차이가 컸으며(CP 4.7~6.4%, RFV 62.2~78.9, 건물 소화율 41.9~53.9%), 갈대 사일리지의 품질은 수단그라스에 비해 불량하였다. 강원 평창 강변 자생갈대의 사료가치는 초장이 79, 117, 121, 142㎝로 생육이 진행됨에 따라 낮아져, 조단백질은 각각 13.9%에서 7.6%로, 상대사료가치는 90.7 (건초 3등급)에서 76.1 (건초 4등급)로, 건물 소화율은 72.9%에서 54.7%로 감소하였다. 원주 섬강 주변 야초류는 곤포수확 작업에 어려움이 있었으며, 초장 130 cm의 갈대는 조단백질 8.5%, 상대사료가치 82.3 (건초 4등급), 건물 소화율 70.2%로 사료가치는 높았으며, 220㎝의 성숙한 갈대는 조단백질 10.2%, 상대사료가치 65.1 (건초 5등급), 건물 소화율 48.9%로 볏짚 대비 조금 나은 것으로 평가되었다. 전남영광지역에서는 와탄천 주변에 자생하는 갈대를 수거 이용하고자 시도하였으나 경제성이 없어 중단하였다. 이상의 결과를 종합하여볼 때, 갈대, 억새 등 야초류는 현 상태에서 최대한 수거·이용하되, 사료가치를 유지하고 가축 기호성이 양호한 시기에 수확하는 것이 중요하며, 최소한 볏짚과 비슷하거나 그 이상의 사료가치를 기대하기 위해서는 7월 중순 이전(늦어도 7월까지)에 수확·이용하는 것이 권장된다. This study was carried out in 2010 to investigate the utilization and forage quality of native grasses, such as Phragmites communis which might reduce the cost of feeding domestic cattle. The regions surveyed were the Haenam ranch in Haenam, Pyeongchang, Wonju, and Yeonggwang. In Haenam, yearly silage production harvested from 300 ha was 2,000 MT (7 MT/ha). All of those round bale silages were self-consumed in that region, and marketing price was 50,000 55,000 won per roll (110 won/㎏). Phragmites communis of 150 ㎝ in length contained 8.4% crude protein (CP) with relative feed value (RFV) 71.9 and 60.1% in vitro dry matter digestibility (IVDMD), which was somewhat more favorable than forage quality of rice straw. The silage quality of Phragmites communis varied greatly by the time of harvest (CP 4.7 6.4%, RFV 62.2 78.9, and IVDMD 41.9 53.9%), even with the same district and of the same original forage materials. Generally, the quality of Phragmites communis silage of was poorer than that of sorghum * sudangrass hybrid. In Pyeongchang, forage quality of Phragmites communis was decreased from 13.9% to 7.6% in CP, 90.7 to 76.1 in RFV, and 72.9% to 54.7% in IVDMD, as plant was getting mature, from 79 ㎝ to 117 ㎝, 121 ㎝ or to 142 ㎝ in length. In Wonju, the quality values of Phragmites communis of 130 ㎝ in length were 8.5% CP, 82.3 RFV and 70.2% IVDMD, while those of matured grasses of 220 ㎝ in length were lower (10.2% CP, 65.1 RFV and 48.9% IVDMD), but this was a little more favorable than quality of rice straw. In Yeonggwang, feeding Phragmites communis was tried in a Hanwoo feed, but stopped due to low profitability. In conclusion, the overall quality of most native grasses including Phragmites communis in this survey was poor. Therefore, we recommend that Phragmites communis and native grasses should be harvested on June or July to obtain richer forage quality in forage values than rice straw.

病院 外來 患者에 있어서의 Toxoplasma 抗體價 分布에 關한 調査 硏究

辛大煥,徐志澤,李英河,羅榮彦 충남대학교 의과대학 지역사회의학연구소 1988 충남의대잡지 Vol.15 No.2

The results of Sabin & Feldman dye test for the detection of Toxoplasma antibody titer among 454 hospital outpatients were summarized as follows: 1. Among 454 test sera, 101 cases were positive, the positive rate was 22.2%. 2. According to age group, dye test positive rates were 33.3% (0-9 age group in years), 32.8% (40-49 age group in years), 31.6%(over 60 age group in years), 28.6%(10-19 age group in years), 20.1%(20-29 age group in years), 20.0%(30-39 age group in years), and 18.3%(50-59 age group in years). 3. According medical field, dye test postive rates were high in neurology(40%), pedatrics(37.5%), dermatology (36.4%), and surgery(30.6%) 4. Among 194 obstric and gynecological patients, abortion, anomaly, and retroversioflexion had high Toxoplasma antibody titers, but inflammatory disease, cancer, pregnancy and infertility revealed as relatively same antibody titers.

메틸水銀의 心筋毒性에 대한 苦蔘의 影響

송호준,하대호,유교상,박승택,이강창,서부일 대한본초학회 2002 大韓本草學會誌 Vol.17 No.2

Objectives : To evaluate the toxic effect of methylmercuric chloride(MMC) and the protective effect of Sophorae Radix(SR) in cultured mouse myocardial cells, cytotoxicity was measured by MTT assay Methods : Cultured myocardial cells were incubated for 72 hours in the media containing 5~40 ㎛ concentrations of MMC. And also, the protective effect of SR was determined by sulforhodamine B(SRB) for protein sythesis and radioactive assay for DNA sythesis in these cultures. Results : Cell viability was significantly decreased in a dose-dependent manner after cultured myocardial cells were exposed to 20 ㎛ MMC for 72 hours. In the neuroprotective effect of SR on MMC-induced cytotoxicity, SR blocked the MMC-induced myotoxocity in these cultures. Conclusion : It suggests that MMC is toxic against cultured mouse myocardial cells and SR is effective in blocking the meurotoxicity induced by MMC.

지구성 운동이 중년여성의 혈중지질농도에 미치는 영향

朴麟基,崔大雨,李明秀,徐在河,趙炳俊,金泰亨 충남대학교 체육과학연구소 2000 體育科學硏究誌 Vol.18 No.1

The purpose of this study was to identify the effect of endurance exercise program on the middle-aged women. Six subjects were recruited from among volunteers responding to advertisements placed around the university community. All subjects, with no experience in regular physical activity participated in an interventional training consisting of swimming and stretching three days a week for 10weeks. Pre-and post blood lipid levels, such as Total Cholesterol(TC), High Density Lipoprotein Cholesterol(HDL-C), Low Density Lipoprotein Cholesterol(LDL-C), and Triglyceride(TG) were measured. A paired t-test showed results that were significant the .05 level were HDL-C , LDL-C, TG, and TC/HDL-C Ratio. The main finding of the study was that the role of endurance training, as prescribed in our study has the effect of making improvements in blood lipid levels for the middle-aged women. 1. After a 10week period of endurance exercise, the Total Cholesterol(TC) level was higher than that of pre-test. But the difference no showed the statistical significance. 2. After a 10week period of endurance exercise, the High Density Lipoprotein Cholesterol(HDL-C) Low Density Lipoprotein Cholesterol(LDL-C). Triglyceride(TG) level was higher than that of pre-test. and the difference showed the Statistical significance. In conclusion, even though there was significant in blood lipid levels after endurance exercise, swimming has a beneficial on improving in the middle-aged women.

HBeAg 음성 만성 B형 간질환에서 Lamivudine의 치료 효과

정인두,박능화,김병철,박지현,서광원,김대현,주광로,김도하 대한간학회 2003 Clinical and Molecular Hepatology(대한간학회지) Vol.9 No.2

목적: HBeAg 음성 만성 B형 간질환 환자에서 라미부딘 치료 효과, 내성 발생률, 치료 종료 후 재발률 및 각각의 예측 인자를 알아보고자 하였다. 대상과방법: HBeAg 음성, anti-HBe 양성이나 HBV DNA가 양성인 HBeAg 음성 만성 B형 간질환으로 진단 받은 환자 중에서 혈청 ALT치가 상승되어 있는 59명을 대상으로 라미부딘을 1일 100mg씩 6개월(평균 14개월)이상 투여하였다. 평균 연령은 42.1세였고 남녀 비는 52:7이였다. 치료 전 혈청 ALT평균치는 368 IU/L, HBV DNA평균치는 494 pg/mL였다. 치료 전, 치료 개시 후 및 종료후 1-2개월 간격으로 간기능 검사, HBeAg, anti-HBe, HBV DNA를 측정하였다. 치료 반응군은 반응이 일어난 시점을 기준으로 1-2개월 간격으로 2번 이상 반응이 유지되는 것을 확인한 후 투약을 중지하고 재발 유무를 추적 관찰하였다. 결과: 라미부딘 투여 후 50명 중 56명(94.9%)에서 혈청 HBV DNA가 음전되었으며 누적 음전율은 1개월후 27%, 2개월 후 71%, 3개월 후 90%, 5개월 후 95%였다. 혈청 ALT치는 52명(88.2%)에서 정상으로 회복되었으며 대부분 6개월 내에 이루어졌다. 혈청 ALT치의 누적 정상화율은 2개월 후 30%, 3개월 후 47%, 6개월 후 78%, 10개월 후 86%였다. 혈청 HBV DNA가 음전되고 혈청 ALT치가 정상으로 유지된 치료 반응은 52예(88.1%)에서 일어났으며, 누적 치료반응률은 2개월 후 10%, 4개월 후 49%, 6개월 후 66%, 10개월 후 80%, 18개월 후 88%였다. 라미부딘 총 투여 기간이 유일한 치료 반응 예측 인자였다(p=0.000). 변이형의 출현은 5예(8.5%)에서 일어났고 누적 발생률은 10개월 후 8%, 16개월 후 13%였다. Breakthrough발생 예측인자와 관련된 유의한 인자는 없었다. 치료 반응군중 투여 중지한 34명 중 17명(50%)에서 재발하였으며(평균추적기간: 6개월, 범위: 1-22개월) 대부분 투여중지 6개월 내에 재발하였다. 누적 재발률은 3개월 후 24%, 6개월 후 47%, 10개월 후 66%였다. 재발과 관련된 예측 인자는 치료 반응후 추가적인 라미부딘 누여만이 유의한 인자였다(p=0.019). 특히 12개월 이상 유지한 7명 모두에서 재발하지 않았다. 결론: 라미부딘은 HBeAg 음성 만성 B형 간질환에서 높은 치료효과와 낮은 breakthrough를 보였으며 라미부딘 투여 기간만이 유일한 치료 반응 예측 인자이었다. 그러나 치료 종료 후 많은 예에서 재발하였으며 치료 반응 후 추가적인 라미부딘 투여 기간만이 유일한 재발 예측 인자였으며 재발을 막기 위해서는 장기간의 추가적인 라미부딘 투여가 필요할 것으로 사료된다. Background/Aims: Lamivudine therapy is effective in inhibiting HBV replications in patients with HBeAg-negative chronic liver disease. However, the sustained response rate appears to be particularly poor, because the vast majority of patients relapse soon after cessation of therapy. The aim of this study was to evaluate the efficacy of lamivudine, the breakthrough rate, and the relapse rate of discontinuing therapy after response in patients with HBeAg-negative chronic liver disease. Methods: Fifty-nine patients with HBeAg-negative chronic liver disease who have received lamivudine for at least 6 months, were studied. The mean duration of treatment was 14 months. Complete response was defined as undetectable serum HBV DNA by bDNA and normalization of ALT levels. Once HBV DNA disappearance and ALT normalization were observed, lamivudine therapy was continued for at least two additional months. The mean follow-up after cessation of treatment was 6 (1-22) months. Results: Fifty-six patients were undetectable HBV DNA. The cumulative HBV DNA loss rates at 3 months and 5 months were 90% and 95%, respectively. The ALT normalization was observed in 52 patients. The cumulative ALT normalization rates at 6 months and 10 months were 78% and 86%, respectively. The complete response was observed in 52 patients. The cumulative rates of complete response at 10 months and 18 months were 80% and 88%, respectively. A predictive factor for complete response was only the duration of lamivudine treatment. Virological breakthrough was observed in 5 (8.5%). Thirty-four patients stopped taking lamivudine after 7.7 (2-15) months of the additional therapy. Seventeen of those patients (50%) experienced relapse. The cumulative relapse rates at 3 months, 6 months and 10 months were 24%, 47% and 66%, respectively. The only predictive factor for relapse was the duration of additional lamivudine treatment after response. Conclusions: Lamivudine was an effective treatment of HBeAg negative chronic liver disease. Relapse, however, was usually observed after cessation of lamivudine. Our results showed that long-term lamivudine therapy is required in order to decrease the high relapse rates in patients with HBeAg-negative chronic liver disease.

A Comparative Study on RF Transmission Shielding of RF Absorber and RF Shielding Material

Dae Keon-Seo,Yong Moon-Lee,Jeung Hoon-Seo,Dong Yoon-Ha 대한자기공명기술학회 2012 대한자기공명기술학회지 Vol.22 No.-

수지 및 탄소섬유 함유량에 따른 C-SMC 복합재료 물성 연구

서대경(Dae-kyung Seo),양석곤(Suk-gon Yang),김기영(Ki Young Kim),박민기(Min Gee Park),박대규(Dae-gyu Park),이은하(Eun-ha Lee),김용태(Yong-tae Kim),배진석(Jin-Seok Bae) 한국염색가공학회 2020 韓國染色加工學會誌 Vol.32 No.4

공연관광시장 활성화 요인 분석-정동극장 “미소” 공연을 중심으로-

서대하 ( Dae Ha Seo ) 한국무용연구학회 2013 한국무용연구회 국제학술발표논문집 Vol.2013 No.-

Concert·Tourism Market is paid attention to as a emerging market in tourism industry, and it can contribute to raising positive image and visitors would feel like revisiting by understanding and experiencing the country`s culture through concert tourism. With this considered, a study of success case in Jeongdong Theater Standing Concert ``Miso,`` the most representative concert·tourism merchandise in Korea, will be developed, and we consider it is necessary to try contents production by which we would understand and experience our culture through a variety of concert·tourism contents development.

Light intensity as major factor to maximize biomass and lipid productivity of <i>Ettlia</i> sp. in CO₂-controlled photoautotrophic chemostat

Seo, Seong-Hyun,Ha, Ji-San,Yoo, Chan,Srivastava, Ankita,Ahn, Chi-Yong,Cho, Dae-Hyun,La, Hyun-Joon,Han, Myung-Soo,Oh, Hee-Mock Elsevier 2017 Bioresource technology Vol.244 No.1

<P><B>Abstract</B></P> <P>The optimal culture conditions are critical factors for high microalgal biomass and lipid productivity. To optimize the photoautotrophic culture conditions, combination of the pH (regulated by CO<SUB>2</SUB> supply), dilution rate, and light intensity was systematically investigated for <I>Ettlia</I> sp. YC001 cultivation in a chemostat during 143days. The biomass productivity increased with the increase in dilution rate and light intensity, but decreased with increasing pH. The average lipid content was 19.8% and statistically non-variable among the tested conditions. The highest biomass and lipid productivities were 1.48gL<SUP>−1</SUP> d<SUP>−1</SUP> and 291.4mgL<SUP>−1</SUP> d<SUP>−1</SUP> with a pH of 6.5, dilution rate of 0.78d<SUP>−1</SUP>, and light intensity of 1500μmolphotonsm<SUP>−2</SUP> s<SUP>−1</SUP>. With a sufficient supply of CO<SUB>2</SUB> and nutrients, the light intensity was the main determinant of the photosynthetic rate. Therefore, the surface-to-volume ratio of a photobioreactor should enable efficient light distribution to enhance microalgal growth.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Biomass productivity of <I>Ettlia</I> sp. was maximized using CO<SUB>2</SUB>-controlled chemostats. </LI> <LI> Highest biomass productivity of 1.48gL<SUP>−1</SUP> d<SUP>−1</SUP> at 1500μmolphotonsm<SUP>−2</SUP> s<SUP>−1</SUP>. </LI> <LI> Lipid content was around 19.8% regardless of pH and light intensity variation. </LI> <LI> Light intensity was the key factor for high biomass productivity. </LI> </UL> </P>

Species composition and seasonal variation of fish larvae caught by ring net (Ø 160 cm) in Korean waters

Seo Ha Jang,Eun Hye Koh,Jeong-Ho Park,GyungRyul Kim,Dae-Hyeon Kwon,Yeonghye Kim,Jin-Koo Kim 한국수산해양기술학회(구 한국어업기술학회) 2018 한국수산해양기술학회 학술발표대회 Vol.2018 No.11