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부산지방에서 사육중인 애완견으로부터 분리한 피부사상균에 관한 연구
이강록,정경태,노환국,김병지,임기재,류중운 한국동물위생학회 1994 韓國家畜衛生學會誌 Vol.17 No.3
This study were performed to distribution of dermatophytes isolated from pet dogs in Pusan area and pathogenicity of the isolates. During the period from March 1993. to April 1994, 201 pet dogs of house breeding were examined. The result of obtained were summarized as followes; 1. Isolation rate of dermatophytes were 4.7%(7/149) in no lesion and 23.1%(12/52) in lesion of dog's skin. 2. According to breeding conditions, isolation rate of dermatophytes were 1) 3.8% in no lesion and indoor breeding, 2) 16.7% in lesion and indoor breeding, 3) 13.5% no lesion and outdoor breeding, and 4) 37.5% in lesion and outdoor bleeding. 3. Among the 201 Pet dogs, 16 strains of M. cams(84.2%), 1 of M. gypseum(5.3%), and 2 of T. mentagrophytes (10.5%) were isolated. 4. For Pathogenicity test, one strain of each M. canis, M, gypseum, T. mentagrophytes isolated from skin lesions were inoculated to the skin of the posterior back of guinea pigs. All of dermatophytes tested were induced skin lesions. Among them, M. cams and T. mentagrophytes were more virulent than M. gypseum.
부산, 경남지방 도계육에 대한 Leucocytozoon 감염율 조사
정경태 ( Kyung Tae Chung ),최형종 ( Hyong Jong Choi ),신종백 ( Jong Baik Shin ),임기재 ( Ki Jae Lim ) 한국가축위생학회 1990 韓國家畜衛生學會誌 Vol.13 No.2
During 9 months (March-November, 1989), observation of Leucocytozoon infection rate to blood and parenchymatous viscera (spleen, liver, heart) in Pusan, Gyeongnam (Kimhae, Yangsan) districts slaughtered chicken and the results obtained were as follow: 1. Among the blood smear sample of 213 heads of the chicken, 43 heads (20.2%) were infected with Leucocytozoon 2nd stage gametocyte and 4 heads (1.9%) were mixed infected with Leucocytozoon 5th stage gametocyte. 2. In histopathological detection of schizont in tissues section of spleen, liver and heart, there were 16.7% in spleen, 5.6% in liver and 9.1% in heart, mean detection rate were 10.6%. Spleen had the highest detection rate of schizont. 3. In seasonal-related infection rate, summer was higher than spring.
Peroxidase-antiperoxi daes법(法)을 이용(利用)한 실험감염(實驗感染) 계(鷄)의 조직내(組織內) 뉴캣슬병(病) 바이러스 항원동정(抗原同定)
노환국 ( Whan Goog Nho ),신종백 ( Jong Back Shin ),임기재 ( Ki Jae Lim ),김병지 ( Byong Jee Kim ) 한국동물위생학회 1992 한국동물위생학회지 (KOJVS) Vol.15 No.2
This study was done to identify Newcastle disease virus(NDV) antigens in paraffin sections of various organs from experimentally NDV-infected chicken using peroxidase-antiperoxidase(PAP) technique. Sections were incubated with rabbit anti-NDV polyclonal as first antibody, followed by incubation with goat anti-rabbit IgG conjugate and peroxidase anti-peroxidase(PAP). Positive reactions were often detected in the epithelim of trachea and in the lymphocyte of spleen at 24 hours after virus inoculation. The viral antigen was localized mainly in the cytoplasm of infected cells. The method approved to be highly specific for the indetification of NDV and allowed a precise localization of the viral antigens in infected cells.
Listeria monocytogenes의 생존성(生存性)에 관(關)한 식육보존료(食肉保存料)의 효과(效果)
이우원 ( Woo Weon Lee ),김병지 ( Byong Jee Kim ),임기재 ( Ki Jae Lim ),신종백 ( Jong Back Shin ) 한국동물위생학회 1993 한국동물위생학회지 (KOJVS) Vol.16 No.1
The studies were conducted to determine the effects of preservatives such as sodium chloride, sodium nitrite, sodium benzoate and sorbic acid on the survival of L. monoeytogenes with regard to interaction of temperature, heat and pH of the medium. Inactivation of L. monoeytogenes Scott A was more predominent by combination of sodium chloride and the other preservatives than sodium chloride alone, and inactivation was more exhilarated at 4°C than at 35°C. The organism was not inactivated when sodium chloride, sodium nitrite, sodium benzoate and sorbic acid were added to 3%, 100ppm, 0.1, or lower, respectively, but was inactivated in the concentration increased twice. In TSB(tryptic soy broth) at pH 5.0 or lower, the organism did not grow regadless of the kinds of preservatives, and inactivation effect particularly was prominent in the presence of sodium nitrite and sorbic acid. On the other hand, at pH 6.0 or higher, L. monoeytogenes gradually increased in numbers and the effects of inhibition was higher in the presence of sorbic acid than in the other preservatives. When the preservatives were added to the concentration commonly used, incubation in TSB at 4°C gradually resulted in growth of the bacterium and the organism rapidly dicreased in numbers at 20°C or 35°C after incubation for 1 week. When L. monoeytogenes was inoculated in TSB containing various preservatives and heated at 55°C for 30minutes, the organism decreased in numbers at all preservatives. Particularly, viability rate of the organism was the lowest as 0.07% in the presence of sorbic acid.