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한국동물위생학회(구 한국가축위생학회)> 한국가축위생학회지 (KOJVS)

한국가축위생학회지 (KOJVS) update

Korean Journal of Veterinary Service

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수록범위 : 13권1호(1990)~44권2호(2021) |수록논문 수 : 1,154
한국가축위생학회지 (KOJVS)
44권2호(2021년 06월) 수록논문
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1Recent perspectives on caseous lymphadenitis caused by Corynebacterium pseudotuberculosis in goats-A review

저자 : Aftabuzzaman , Yong-il Cho

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 44권 2호 발행 연도 : 2021 페이지 : pp. 61-71 (11 pages)

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Caseous lymphadenitis, caused by Corynebacterium pseudotuberculosis has been a predominant disease among small ruminants on farms, causing significant losses for farm producer in the larger part of goat rearing nations across the world, for over a century. However, the control measures have not been very effective due to the chronic and usually subclinical nature of the infection. This has caused significant financial losses due to chronic ill-thrift, carcass condemnation, decreased meat yields and low reproduction as well as animal welfare. The current status of caseous lymphadenitis, with updated reseach information to the etiology, pathogenesis, clinical signs, identification, prevalence, prevention and vaccination are delineated in the review.

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2전북지역 돼지유행성설사 바이러스 Spike 유전자 염기서열 및 계통분석

저자 : 박미연 ( Mi-yeon Park ) , 문보미 ( Bo-mi Moon ) , 강수진 ( Su-jin Gang ) , 이종하 ( Jong-ha Lee ) , 박진우 ( Jin-woo Park ) , 조성우 ( Sung-woo Cho ) , 허철호 ( Cheol-ho Her )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 44권 2호 발행 연도 : 2021 페이지 : pp. 73-83 (11 pages)

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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.

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3김제 지역 한우 송아지의 크립토스포리듐, 지알디아 발생 현황

저자 : 이한경 ( Han-kyoung Lee ) , 소경민 ( Kyoung-min So ) , 오상익 ( Sang-ik Oh ) , 노재희 ( Jae-hee Roh ) , 김미숙 ( Mi-suk Kim ) , 강명금 ( Myoung-geum Kang ) , 정숙한 ( Suk-han Jung ) , 정영훈 ( Young-hun Jung ) , 조아라 ( Ara Cho ) , 이한규 ( Han Gyu Lee ) , 류재규 ( Jae-gyu Yoo ) , 허태영 (

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 44권 2호 발행 연도 : 2021 페이지 : pp. 85-91 (7 pages)

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This study was performed to identify the prevalence of cryptosporidiosis and giardiasis in diarrhea feces of Korean native calves raised in Gimje, Jeollabuk-do, with a rapid diagnostic kit. The prevalence of both diseases were classified according to the age of calf, season of sampling period, and sampled farm where diarrheic calf is commonly observed. In diarrhea feces of 431 calves, cryptosporidiosis had a high incidence rate between 1 and 3 weeks of age, whereas giardiasis showed a high incidence between 4 and 6 weeks of age. It is thought that the incidence of protozoan diseases is markedly influenced by the calf's postnatal age. Regarding with the sampling season, the prevalence of cryptosporidiosis and giardiasis in calves was significantly higher in spring and summer than in autumn and winter (P<0.05). Among the sampled farms where both diseases are commonly observed, cryptosporidiosis was more frequently detected than giardiasis in calves. Particularly, in farms where cryptosporidiosis is common, it tends to be a disease that is difficult to eradicate as it occurs continuously throughout the year. Hygiene management such as regular cleaning and disinfection of the livestock and the surrounding environments is considered necessary to reduce and prevent damage from these protozoal diseases.

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4대전 주택가 산책로 진드기의 인수공통전염병 병원체 감염실태 조사

저자 : 한소영 ( So-young Han ) , 성선혜 ( Sun-hye Sung ) , 서진우 ( Jin-woo Seo ) , 김종호 ( Jong-ho Kim ) , 이석주 ( Seok-ju Lee ) , 유상식 ( Sang-sik Yoo )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 44권 2호 발행 연도 : 2021 페이지 : pp. 93-102 (10 pages)

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In this study, a total of 9,449 hard ticks were collected once a month from April to October 2020 from a neighborhood park in Daejeon by flagging & dragging method and CO2 manned trap method. The collected ticks were classified according to the Yamagutsi search table using a stereoscopic microscope and molecular biological analysis of four pathogens (SFTSV, Anaplasma spp., Ehrlichia spp., Borrellia spp.). As a result of the study, Haemaphysalis longicornis were collected the most in all areas of the five boroughs at a rate of 82 to 96 percent, while adults were collected the most in May to July, nymphs were collected the most in April to June, and larvae from August to October at a rate of 78 percent to 98 percent. In pathogens, three cases of SFTSV were detected, showing a minimum infection rate (MIR) of 0.46%, while Anaplasma spp. and Ehrlichia spp. were detected one each, with 0.15% and Borrelia spp. with a minimum infection rate of 0.46%. The detected SFTSV showed 99.9% homogeneity with the KF781490 detected in Cheongwon-gun, Chungbuk Province, Anaplasma spp. showed 99.0% homogeneity with JN990105 detected in China, and Erhlichia spp. showed 98.9% genetic similarity with U96436 separated from the U.S. In this study, the distribution status and pathogen infection rate of the hard ticks in the Daejeon area are analyzed and provided as basic data for the prevention of the hard tick-borne infectious disease.

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5제주지역 돼지 흉막폐렴에 대한 병리학적 연구 및 원인체의 혈청형

저자 : 김기승 ( Ki-seung Kim ) , 양형석 ( Hyoung-seok Yang ) , 김재훈 ( Jae-hoon Kim )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 44권 2호 발행 연도 : 2021 페이지 : pp. 103-111 (9 pages)

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Actinobacillus (A.) pleuropneumoniae is the etiological agent of a porcine pleuropneumonia and have great economic importance to the global swine industry. For recent 5 years, a total of 50 pleuropneumonia cases of 24 pig farms were selected from pig lungs submitted to the College of Veterinary Medicine, Jeju National University using polymerase chain reaction (PCR) analysis. Collected lungs were fixed in 10% neutral phosphate-buffered formalin and processed for histological examination. Serotypes of A. pleuropneumoniae in pneumonic lesions were analyzed by PCR methods. And the antimicrobial susceptibility of A. pleuropneumoniae isolates was determined by a disc diffusion test. Grossly, unilateral distribution of hemorrhagic or necrotic pneumonic lesions was more common than bilateral distribution in lungs. In peracute or acute cases, histopathologic changes were characterized by necrosis, hemorrhage, neutrophils infiltration, vascular thrombosis, widespread edema and fibrinous exudates. Following the acute response, macrophage infiltration, marked fibrosis around zonal necrotic areas, and marked fibrous pleuritis were characteristic in chronic cases. A total of 50 pleuropneumonia were associated with A. pleuropneumoniae serotype 5 in 46 cases (92%), serotype 2 in 3 cases (6%), and both 2 and 5 in 1 case (2%). More than 90% of collected isolates showed high sensitivity to ceftiofur, amoxicillin, and colistin. However, ampicillin, penicillin, and tylosin showed low susceptibility. The results of this study demonstrated that A. pleuropneumoniae serotype 5 was predominant at porcine pleuropneumonia cases in Jeju.

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6한우에서 발생한 도꼬마리 중독 증례

저자 : 전경아 ( Kyoungah Jun ) , 이동은 ( Dongeun Lee ) , 정대은 ( Daeeun Jeong )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 44권 2호 발행 연도 : 2021 페이지 : pp. 113-117 (5 pages)

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Cocklebur poisoning in livestock can cause sudden death, with clinical signs include depression, inappetite, blindness, reluctance to move, hypersensitivity, ataxia and coma. The cause of cocklebur poisoning is ingestion of cocklebur sprout or seed, which contains carboxyatractyloside. In December 2020, a 47 month-old Hanwoo suddenly developed ataxia, and died after several hours. Hay mixed cocklebur seeds was fed to Hanwoo for 4 days before the symptoms. At autopsy, petechia and ecchymosis were seen on serous membrane of rumen and intestines. Peritoneal cavities contained a yellowish fluid and, hypoglycemia (Glu <20 mg/dL) was measured in blood test result. Microscopic lesions were karyolysis of centriloular hepatocyte and hemorrhage. Based on autopsy, blood and histopathological test, we diagnosed this case as cocklebur poisoning in Hanwoo.

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7Mycobacterium genavense induced mycobacteriosis in an Indian peafowl (Pavo cristatus)

저자 : Yeonsu Oh , Sang-joon Lee , Dong-seob Tark , Ho-seong Cho

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 44권 2호 발행 연도 : 2021 페이지 : pp. 119-124 (6 pages)

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The report describes an avian mycobacteriosis in a captive wild bird. A 7-year-old female Indian peafowl (Pavo cristatus) maintained in a zoo of Korea presented a gradual cachexia and eventually was found dead. At necropsy, severely atrophied pectoral muscles exposing the keel bone were noticed. Yellowish thick nodules in varying sizes were scattered in all lobes of lungs, liver and spleen, suggesting mycobacteriosis. Histopathologically, multifocal to coalescing granulomas surrounded by multinucleated giant cells were observed. Numbers of acid-fast bacilli were revealed in granulomas. Then, a series of molecular diagnostic techniques were followed: a nested PCR, DNA sequencing and bioinformatics analysis. It resulted as Mycobacterium genavense. The identification of M. genavense as an etiological agent suggested that it might serve as a risk factor for other captive wild animals, and for a potential zoonotic risk since M. genavense have been a definite cause of disseminated mycobacterial infection in immunocompromised people. To the authors' knowledge, this is the first report of avian mycobacteriosis with M. genavense in a captive Indian peafowl.

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