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광주지역에서 발생한 토끼 Eimeria stiedae 감염증
배성열 ( Seong Yeol Bae ),김철희 ( Cheol Hee Kim ),고바라다 ( Ba Ra Da Koh ),박성도 ( Seong Do Park ),나호명 ( Ho Myeong Na ),김용환 ( Yong Hwan Kim ),오대영 ( Dae Yeong Oh ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.21 No.4
A rabbit farm reared about 500 New Zealand White in Kwangju city was occurred Eimeria stiedae infection. Morbidity and cumulative mortality were more than 39% and 14%, respectively, from May, 1997 to March, 1998. Most of cases with severe diarrhea were belong to younger than 2-month old. In necrospy, there were multifocally white nodules with about 1-5mm in diameter on the liver surface and dark greenish mucous exudate in intestinal lumen. Main microscopic lesions included marked hyperplasia of the bile duct epitheilia containing different developmental stages of Eimeria stiedae and inflammatory cell infiltration, and the degeneration of small intestinal epithelia. Many oocysts of Eimeria stiedae were detected in the intestinal contents and epithelia, the feces, the bile juice, the bile duct and the liver.
박남용,배성열,기혜영,정치영,오기석,이철호,Park Nam-Yong,Bae Seong-Yeol,Kee Hye-Young,Chung Chi-Young,Oh Ki-Seok,Lee Cheol-Ho 대한수의사회 1991 대한수의사회지 Vol.27 No.8
Pathological investigations including light and electron microscopy were carried out on the two dead of the four and five-month-old diseased Korean cattle calves in order to find out the nature of a domestically unknown disease prevailing at a cattle farm
나호명 ( Ho Myung Na ),배성열 ( Seong Yeol Bae ),고바라다 ( Ba Ra Da Koh ),박재성 ( Jae Sung Park ),서윤정 ( Yun Jeong Seo ),정하진 ( Ha Jin Jeong ),박자윤 ( Ja Yoon Park ),박성도 ( Seong Do Park ),김은선 ( Eun Sun Kim ),김용환 ( Y 한국가축위생학회 2016 韓國家畜衛生學會誌 Vol.39 No.2
The antibody titers against Coxiella burnetii (Q fever) among cattle raised in Gwangju area were analyzed from February to October in 2015. The prevalence of antibodies in collected bulk-tank milk from 7 dairy cattle farms was 57.1% and the seroprevalence of 210 dairy cows randomly selected from those farms was 7.1%. By age, the seroprevalence was 3.3% in less than 4 years of age, 9.0% between 4 and 7 years of age, and 28.6% in more than 8 years of age. On the other hand, the seroprevalence of the Hanwoo cattle was 0.4%. The result suggested that the antibodies against Coxiella burnetii increase as the age of the dairy cows increases and therefore, it is necessary to keep monitoring the prevalence of Q fever in Gwangju area.
국내에서 발생한 돼지 뇌심근염 바이러스 감염증의 병리학적 관찰
박남용,이창영,정치영,기혜영,배성열,Park, Nam-yong,Ri, Chang-yeong,Chung, Chi-young,Kee, Hye-young,Bae, Seong-yeol 대한수의학회 1992 大韓獸醫學會誌 Vol.32 No.1
Pathological studies by light and electron microscope were carried out on the twenty piglets naturally affected by encephalomyocarditis virus infection. Gross findings included pale or yellow, small necrotic foci on myocardium, together with pulmonary edema and liver congestion in some cases. On light microscopy, nonsuppurative interstitial endocarcitis, epicarditis and myocarditis, myocardial infarction, and dystrophic calcification or fibtosis were observed in heart. Perivascular cuffings, gliosis and nonsuppurative meningitis were appeared in brain. Focal or diffuse necrosis with mononuclear cell infiltration in lacrimal gland and multifocal necrosis in liver were observed in some cases. Congestion and edema of lung, hyperemia, hemorrhage and deletion of lymphocytes of lymph nodes and spleen were recognized. On electron microscopy, severe swelling and vacuolization of mitochondria and sarcoplasmic reticulum, large intracellular vacuolation and edema, separation and fragmentation of myofibrils were observed. Virus particles were seen in the sarcoplasm of degenerated cardiac muscle cell.
박남용,정치영,이창영,기혜영,배성열,이봉주,하용공,윤석민,정병탁,김동성,Park, Nam-yong,Chung, Chi-young,Ri, Chang-yeong,Kee, Hye-young,Bae, Seong-yeol,Lee, Bong-ju,Ha, Yong-kong,Yoon, Seog-min,Jung, Byung-tack,Kim, Dong-sung 대한수의학회 1990 大韓獸醫學會誌 Vol.30 No.4
Encephalomyocarditis virus infection in pigs, characterized by severe reproductive failure in sows and sudden death in less than 7 day-old-piglets, a period of several months from October to December of 1989, in Korea was occurred. The most outstanding gross lesions at necropsy were found in the heart which were consisted of pale, yellow brown necrotic foci of varying size in myocardium. In some cases, pulmonary edema and liver congestion were observed. Histopathology of the heart revealed the interstitial myocarditis, endocarditis and epicarditis with lymphocytic, plasmacytic and macrophage cell infiltration and, in some cases, calcification of the necrotic myocardial muscle fibers. In some cases of brain, the perivascular cuffing and glial nodules were observed. In the liver and the lacrimal gland varying degrees of multifocal necrosis were seen. The virus was isolated from the heart and the brain in a stillborn piglet and a mummified fetus. This outbreak represents the first case of encephalomyocarditis virus infection of pigs in Korea.
나호명 ( Ho Myung Na ),배성열 ( Seong Yeol Bae ),이연이 ( Yeun Ey Lee ),박재성 ( Jae Sung Park ),박성도 ( Seong Do Park ),김은선 ( Eun Sun Kim ),김용환 ( Yong Hwan Kim ) 한국동물위생학회 2013 韓國家畜衛生學會誌 Vol.36 No.3
For the monitoring of six viral disease (CIV: canine influenzavirus, CPIV: canine parainfluenzavirus, CHV: canine herpesvirus, CPV2: canine parvovirus type 2, CCoV: canine coronavirus, CNV: canine norovirus) inspections, a total of 300 samples were collected nasal or feces from the companion dogs of animal hospital (n=98) and the abandoned dogs of animal shelters (n=202) in Gwangju, Korea. Using PCR and RT-PCR, CPV2, CPIV and CHV were detected in 55 (18.3%), 11 (3.7%), 1 (0.3%), respectively. CPV2 was highly detected in May, October and November. and CPIV was highly detected in November. But those agents were not detected the virus in March and July. Based on the results of the investigation continuous monitoring for companion and abandoned dogs will be required.
광주지역 소 생고기 선호도 및 유통단계별 세균학적 분석
나호명 ( Ho Myung Na ),배성열 ( Seong Yeol Bae ),고바라다 ( Ba Ra Da Koh ),장미선 ( Mi Sun Jang ),성창민 ( Chang Min Sung ),김지연 ( Ji Yeon Kim ),박헌규 ( Heon Gyu Park ),문용운 ( Yong Un Mun ),김용환 ( Yong Hwan Kim ) 한국동물위생학회 2012 韓國家畜衛生學會誌 Vol.35 No.4
Consumer`s preference and microbial inspections on fresh raw beef were carried out to understand the actual market status in Gwanju, Korea. Over 15 questions on questionnaire by 1,111 randomly selected respondents between April and May in 2011, results showed 65.5% positive on eating fresh raw beef, 63.8% negative on good hygiene condition of fresh raw beef, and 72.5% positive on the secure of the hygiene-safety for priority program, respectively. For microbial inspections, a total of 302 samples were collected from fresh raw beef purchased from slaughterhouse (n=122), transport (n=69) and consumer (n=81) stage, from lettuce (n=30) at consumer stage. The aerobic plate count (APC), E. coli count and food borne bacteria such as Salmonella spp., Listeria monocytogenes, Staphylococ-cus( S.) aureus and E. coli O157:H7 were tested in the samples. As results, the level of count on APC of fresh raw beef ranged 6×10(1)∼1.8×10(5) CFU/g from slaughterhouse, 2×10(2)∼8.3×10(5) CFU/g from transport stage and 1×10(2)∼4×10(5) CFU/g from consumer stage. The level of count on E. coli of fresh raw beef ranged 1∼9×10(1) CFU/g from slaughterhouse, 1∼7×10 CFU/g from transport stage and 1∼5.5×10 CFU/g from consumer stage. In total, 26 S. aureus were isolated, 10 (14.5%) from fresh raw beef at transport stage, 12 (14.8%) from fresh raw beef and 4 (13.3%) from lettuce at consumer stage. Enterotoxin of S. aureus was not detected among 26 isolates. All S. aureus isolates were typed using a DiversiLab(TM) rep-PCR system for genetic similarity test, showing over 95% of genetic relationship amon isolates.
하용공,윤석민,정병탁,박남용,이봉주,정치영,기혜영,배성열,Ha, Yong-kong,Yoon, Seok-min,Jung, Byung-tack,Park, Nam-yong,Lee, Bong-ju,Chung, Chi-young,Kee, Hye-young,Bae, Seong-yeol 대한수의학회 1991 大韓獸醫學會誌 Vol.31 No.4
Encephalomyocarditis(EMC) virus was isolated from the mummified and stillborn pigs at a swine farm in Chonnam Province, experienced with EMC infection over the period Oct.~Dec. of 1989. In addition some cultural, serological properties of the isolates and experimental infections in the piglets were studied. The results obtained were as follows; 1. Two EMC virus strains with HA titers and CPE similar to EMC-ATCC were established in a baby hamster kidney (BHK)-21 cell line by inoculating homogenates of brain and heart of the 19 mummified or stillborn pigs and designated $K_3$ and $K_{11}$. 2. At the second BHK-21 cell line passage of the initial isolates CPE appeared after incubation for 16~18 hours, while at the fourth and fifth passage the highest titer of HA was recorded, titer of HA using rat and guinea pig erythrocytes. 3. One pig inoculated with the isolate $K_3$ showed dyspnea as clinical signs and died at the 10 days after inoculation at necropsy white necrotic foci were observed from the dead animal heart. 4. Although all the rest surviving pigs showed increases in antibody titer and body temperature of $40^{\circ}C$ above for the initial 2~4 days followed by the return to normal, there were no gross lesions when the animals were sacrificed at the 2 weeks after inoculation.
오아름 ( A-reum Oh ),고바라다 ( Ba-ra-da Koh ),정보람 ( Bo-ram Jung ),나호명 ( Ho-myoung Na ),배성열 ( Seong-yeol Bae ),김용환 ( Yong-hwan Kim ) 한국동물위생학회(구 한국가축위생학회) 2021 韓國家畜衛生學會誌 Vol.44 No.1
Q fever is a worldwide zoonotic disease caused by Coxiella burnetii. Domestic ruminants are considered to be major source of human infection. The aim of this survey was to investigate seroprevalence of C. burnetii in ruminants in Gwangju area. A total of 1,000 samples (serum and lactoserum) were collected from 987 Korean native cattle, 5 Korean native goats, 2 beef cattle, 6 bulk-tank milk from each dairy farm in Gwangju area from January to October 2020 and analyzed by ELISA. The seroprevalence of C. burnetii in bulk-tank milk from each dairy farms was 50.0%. Korean black goat and beef cattle had negative antibody test results for C. burnetii. The seroprevalence of C. burnetii in Korean native cattle in Gwangju area was 7.1% and was higher in female (7.8%) than in male (3.4%) (P=0.024). The seroprevalence of C. burnetii in Korean native cattle appeared to increase with age (3.8% in 1 year-old, 7.1% in 3 year-old, and 10.7% in more than 5 year-old) (P<0.001). The seroprevalence of C. burnetii of Korean native cattle increased in spring and May was the highest in particular (P<0.001). As the distribution and density of tick-habitat are expected to increase due to climate crisis, this survey highlights the need for monitoring C. burnetii in domestic ruminants, including surveillance of C. burnetii infection in people working for livestock industry.
나호명 ( Ho Myung Na ),최종욱 ( Jong Woog Choi ),박재성 ( Jae Sung Park ),이연이 ( Yeun Ey Lee ),배성열 ( Seong Yeol Bae ),박성도 ( Seong Do Park ),김은선 ( Eun Sun Kim ),김용환 ( Yong Hwan Kim ) 한국동물위생학회 2014 韓國家畜衛生學會誌 Vol.37 No.4
The purpose of this study was to determine the zoonotic diseases of stray dog and cat in Gwangju, Korea. We chose randomly 300 samples which is 265, dogs and 35, cats in the public animal shelter from March to August of 2013. The animals’ blood biochemistry values measured, and the out of normal values were 49.7% GOT, 36.3% GPT, and 78.0% GGT. The tested items were Dirofilaria immitis, Toxoplasma gondii, Brucella canis, Rabies virus. The positive results were 10% Dirofilaria immitis, 6.3% Toxoplasma gondii (antibody detected), 10% Rabies (antibody detected) but 0.0% in B. canis. The stray animals’ antibodyㆍantigen positivity take effect high from Mar.-May. Therefore, we propose that those diseases should be monitering and vaccinating in Korea.