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육현수,이오형,임병무,Yuk Hyun-Su,Lee Oh-Hyung,Rim Byung-Moo 한국동물위생학회 2005 韓國家畜衛生學會誌 Vol.28 No.1
To examine the prevalence and type of lesions in urinary bladder of Korean cattle, a random sampling survey was performed at a Jeonju abattoir in September 2000 and January 2001. Collected urinary bladder were examined grossly and histopathologically and the patterns of disease were investigated with season and sex. Of 735 cattle(99 bulls and 246 cows in September and 141 bulls, 3 steers, and 246 cows in January) surveyed, $26.3\%$ cattle with evident lesions were found. The most common gross finding was urolithiasis of urinary bladder($23.8\%$). Other lesions included hemorrhage($5.9\%$), congestion($4.1\%$), hematuria($2.7\%$), pyuria($0.7\%$), hyperplasia($0.5\%$). Urinary calculi collected in this study contained 80 to $90\%$ of calcium oxalate and 10 to $20\%$ of struvite, with or without $20\%$ of cystine and $10\%$ of uric acid. This study on urolithiasis and pathology of urinary bladder of slaughtered Korean cattle revealed subclinical aspects and management problem in Korean beef product.
세균감염에 의한 초생타조(Struthio camelus camelus)의 쇠약 증후군의 발생 증례
육현수 ( Hyun Su Yuk ),김영진 ( Young Jin Kim ),도홍기 ( Hong Ki Do ),노수일 ( Soo Il Roh ),김범석 ( Bum Seok Kim ),임채웅 ( Chae Woong Lim ) 한국동물위생학회 1999 한국동물위생학회지 (KOJVS) Vol.22 No.2
The most common cause of death is ostrich chick fading syndrome(OCFS), which is due to bacterial infection during artificial incubation and hatching. Six farmed ostrich chicks aged 3 and 10 days in Chonbuk province, were submitted to Chonbuk Livestock Development and Research Institute for necropsy. Clinically, birds showed hair loss, ocular exudate, lethargy, diarrhea, and subsequently died 3-5 days after onset of clinical signs. Grossly, umbilicus was enlarged. White-yellowish purulent nodules were scattered on the lung and the membrane of air-sac was thickened and had inflamed exudate on the surface in two chicks that died 3 days after hatching. In 10 days-old chick, intestine was shown redding segmentally. Yolk sac was still retarded and its surface was partially hemorrahgic. The synovial fluid of the leg was yellowish. Microscopically, multifocal purulent exudates were scattered on the lung. Capillary microthrombi in the glomerulus were prominent and tubular epithelia were necrotic. Necrotic hepatocytes were scattered and intestine were congested. Microbiologically, Pseudomonas sp and/or E coli were isolated from air-sac, lung and/or liver. This case suggests that poor hygiene during artificial incubation, hatching or in the first week after hatching may cause high mortality of the ostrich chicks.
육현수 ( Hyun Su Yuk ),이오형 ( Oh Hyung Lee ),임병무 ( Byung Moo Rim ) 한국동물위생학회 2005 한국동물위생학회지 (KOJVS) Vol.28 No.1
To examine the prevalence and type of lesions in urinary bladder of Korean cattle, a random sampling survey was performed at a Jeonju abattoir in September 2000 and January 2001. Collected urinary bladder were examined grossly and histopathologically and the patterns of disease were investigated with season and sex. Of 735 cattle(99 bulls and 246 cows in September and 141 bulls, 3 steers, and 246 cows in January) surveyed, 26.3% cattle with evident lesions were found. The most common gross finding was urolithiasis of urinary bladder(23.8%). Other lesions included hemorrhage(5.9%), congestion(4.1%), hematuria(2.7%), pyuria(0.7%), hyperplasia(0.5%). Urinary calculi collected in this study contained 80 to 90% of calcium oxalate and 10 to 20% of struvite, with or without 20% of cystine and 10% of uric acid. This study on urolithiasis and pathology of urinary bladder of slaughtered Korean cattle revealed subclinical aspects and management problem in Korean beef product.
추금숙 ( Keum Suk Chu ),육현수 ( Hyun Su Yuk ),천희웅 ( Hee Woong Chon ),송희종 ( Hee Jong Song ) 한국동물위생학회 2006 한국동물위생학회지 (KOJVS) Vol.29 No.1
This studies were carried out to investigate the rearing managements of pig farms and survey on pneumonia of the slaughtered pigs from 5 selected herds located in Jangsu, Jeonbuk. Isolated aerobic microorganisms from pneumonic lung were examined antibiotic susceptibility and tested serological antibody titers of the herd base. Prevalence rate of pneumonia were examined according to rearing and health management conditions of pig farms. Prevalence rate of pneumonia were detected in 78.8% and enzotic pneumonia in 47.7%, pleuropneumonia in 31.1%. In serological antibody titers showed the positive reaction with 54.4% in Actinobacillus pleuropneumonia serotype 5, 44.8% in Pasteurella multocida, 36.8% in A pleuropneumonia serotype 2, 13.6% in Mycoplasmal pneumonia. Isolated aerobic microorganisms were examined antibiotic susceptibility and showed the high activity in gentamicin(58.3%), enrofloxacin(53.3%), norfloxacin(51.6%), cephalothin(41.7%) and low activity in amoxycillin (98.3%), oxytetracycline(98.3%), penicillin G(90.0%), tetracycline(88.4%), ampicillin(88.3%). Farm managements were deficient effect of humidity in swine house but ammonia gas all appeared the 10 ppm that were recommendation density, below.
Clostridium perfringens 감염에 의한 한우 집단 폐사 증례
이정원 ( Joung Won Lee ),김지영 ( Ji Young Kim ),곽길한 ( Kil Han Kwak ),육현수 ( Hyun Su Yuk ),손구례 ( Ku Rye Shon ),고원석 ( Won Seuk Koh ) 한국동물위생학회 2011 한국동물위생학회지 (KOJVS) Vol.34 No.1
This is a case report that 24 heads of cattle suddenly died without clinical signs in a Hanwoo farm. The cause of death was Clostridium perfringens enterotoxemia resulted from them with feeding leftover food. The clinical signs were observed just before the death; increase of heart rate, shallow and rapid respiration, amyostasia, spasm and so forth. In autopsy, blood coagulation disorder, a little abdominal inflation, hepatomegaly and different size of red spots, congestion hemorrhage and undercurrent of bloody exudation were observed in the entire parts of small and large intestines. C. perfringens were isolated from the substantive organs, and a unique fragment of 405bp C. perfringens was amplified by PCR. Therefore, this case was diagnosed as enterotoxemia caused by α-toxin of C. perfringens A type.