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경남 중부지역에서의 Latex응집반응을 이용한 돼지 톡스플라즈마병 항체분포 조사
이병훈 ( Byung Hoon Lee ),황보훈 ( Bo Won Hwang ),변유성 ( Yu Sung Byun ),이순선 ( Soon Sun Lee ),김차용 ( Cha Yong Kim ),서명득 ( Myung Deuk Suh ) 한국동물위생학회 1992 한국동물위생학회지 (KOJVS) Vol.15 No.2
This study was conducted to determine the serum antibodies against toxoplasma in swine from breeding-pig farm, pig farm and abattoir by latex agglutination(LA) test. LA test was carried out with commercial Toxo-MT kit (Eiken chemical co.). The results obtained were summerized as follows: 1. The cut-off titer of positive and negative reactions by Toxo-MT antigen used in this experiment was determined as the serum dilution of 1:32. 2. Positive rates of toxoplasma antibodies in 823 swine sera were 17.0%(140 cases) by LA test. 3. The toxoplasma antibody detection rates against 194 swine sera in breeding-pig farm, 273 swine sera in pig farm and 356 swine in abattoir were 46.9%(91 cases), 8.4%(23 cases) and 7.3%(26 cases), respectively. 4. In LA test serum antibody titers in 823 test sera were shown as 51 cases (36.4%) in 1:32, 40(28.6%) in 1:64, 17(12.1%) in 1:128, 14(10.0%) in 1:256, 10(7.1%) in 1:512, 5(3.6%) in 1:1,024, and 3(2.1%) in 1:2,048. 5. Positive rates of toxoplasma antibodies in swine sera from each breeding-pig farm were 20.0~61.9%.
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기후변화에 따른 맥종별 재배실태와 보급종 보급지역에 의한 재배한계지 평가
박현화(Hyung Hwa Park),이효진(Hyo Jin Lee),노석원(Sug Won Roh),황보훈(Bo Hoon Hwang),국용인(Yong In Kuk) 韓國作物學會 2022 한국작물학회지 Vol.67 No.2
본 연구는 기후변화에 따른 전국 맥종별(겉보리, 쌀보리등) 생육 및 수확량, 보급종자 지역 등을 2019년과 2020년에 조사하여 재배한계지를 알아보고자 수행하였다. 2019년과 2020년에 쌀보리 및 겉보리 보급 종자는 우리나라 전역에서 보급되는 것으로 조사되었다. 맥류 재배시 품종과 보급종자 사용율은 맥종 및 지역별로 다르게 나타났다. 즉2020년과 2021년에 지역별로 겉보리 보급종자는 0∼100% 사용되었다. 2019년과 2020년 전국 쌀보리 평균 파종일은10월 17일∼11월 9일이었고, 겉보리 경우 10월 26일∼11 월 13일이었고, 맥주보리 10월 19일∼11월 5일이었고, 쌀귀리는 10월 3일∼11월 1일이었다. 즉 맥류 파종일은 연도및 지역별 차이를 보였다. 즉 쌀보리의 경우 전남에서는 12 월 12일까지도 파종한 농가가 있었다. 전국 맥종별 재배지역의 10a당 수량은 주산지와 재배한계지간에 차이를 보였다. 일부 재배한계지인 강원도 재배지역에서는 수확이 불가능하였다. 기후변화 시나리오에 의해 1월 최저온도에 의해 -10°C 이하로 겉보리, -8°C 이하로 쌀보리, -4°C이하로맥주귀리와 쌀귀리 맥류 안전지대로 본 경우 한국의 최근20년(2002-2021) 1월 최저평균 온도에 의하면 이들 온도지역에서 맥류가 재배가 가능한 것으로 나타났다. 또한 지역별로 맥류 보급 종자로 볼 때 우리나라 전역에 맥류 재배가가능할 것으로 판단되나 실제로 맥류 생육과 수확량에 관한실태 조사의 경우에서 일부 강원 지역 등에서는 작황불량으로 수확이 불가능한 지역도 있었다. 따라서 기후변화에 따른 맥종별 재배한계지 설정은 재배지의 생육 및 수량 등의영향평가 등에 의해 재추정 되어야 할 것으로 판단된다. This study was conducted to determine the extent to which climate change is expanding areas in which barley can be successfully cultivated. In 2019 and 2020, we collected data on areas that had requested certified seeds from the Korea Seed and Variety Service to determine potential cultivation areas. In addition, we surveyed the growth and yield of different types of barley in fields. Certified seeds of hulled and dehulled barley were requested by farmers across Korea from the Korea Seed and Variety Service in both years. Areas that were provided with certified seeds were considered potential barley cultivation areas. The varieties and use rates of certified seeds varied based on the barley type and region. For example, certified seeds of dehulled barley in 2019 and 2020 were not used in some areas, whereas in others, these seeds constituted 100% of the seeds sown for barley crops. In 2019 and 2020, the average sowing days in Korea were from October 17 to November 9 for dehulled barley, October 26 to November 13 for hulled barley, October 19 to November 5 for malting barley, and October 3 to November 1 for naked oats. Thus, the sowing days of the barley types varied depending on the area and year they were used. For example, in the case of hulled barley in Jeonnam, some farmers sowed until December 12. The yield per 10 a of barley cultivation was typically higher in the main production areas than in the cultivation limit areas. In extreme cases, harvest was impossible in some cultivation limited areas, such as Gangwon-do. Based on the current 20-year January minimum average temperature (JMAT) in Korea (2002-2021), climate change scenarios suggest that barley cultivation is feasible, provided that the minimum temperature in January is no lower than -10°C, -8°C, and -4°C for hulled barley, dehulled barley, and for malting barley and naked oats, respectively. Additionally, cultivation of barley across South Korea seems feasible based on data on certified barley seeds by area. Although both JMAT and certified seed data suggest that barley cultivation across Korea is feasible, our survey results of barley growth and yield showed that harvest was impossible in certain cultivation areas, such as Gangwon-do. Therefore, climate change scenarios related to the cultivation limits of different barley types need to be re-estimated by factoring in survey data on the growth and yield of crops within those cultivation areas.
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