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DNA fingerprinting of Brucella abortus isolated from bovine brucellosis outbreaks by repetitive element sequence (rep)-PCR
2005
Suh, D.K. (Research Institute of Health and Environment, Daegu, Republic of Korea), E-mail: dksuh123@hanmail.net
DNA fingerprint patterns of 8 Brucella reference strains and 15 B. abortus field isolates were characterized by repetitive element sequence-based PCR (rep-PCR) using BOX- and ERIC-primers in this study. AMOS PCR differentiated all Brucella field isolates from B. abortus RB51, a vaccine strain by producing a B. abortus-specific 498 bp band. Rep-PCR using BOX-primer produced 13 to 18 bands with sizes of between 230 and 3,300 bp, and discriminated Brucella strains to the species level except B. canis and B. suis. PCR products amplified with ERIC primers were, however, not appropriate for differentiating the Brucella isolates.
显示更多 [+] 显示较少 [-]Nucleotide sequence analysis and expression of NSP4 gene of avian rotavirus
2005
Shin, I.H. (Chungbuk National University, Cheongju, Republic of Korea) | Kim, W.Y. (Chungang University, Seoul, Republic of Korea) | Lee, S.C. (Chungbuk National University, Cheongju, Republic of Korea) | Kang, S.Y. (Chungbuk National University, Cheongju, Republic of Korea), E-mail: sykang@chungbuk.ac.kr
The nonstructural protein 4 (NSP4) of rotavirus encoded by gene 10, plays an important role in rotavirus pathogenicity. In this study, NSP4 gene of avian rotavirus (AvRV-1, AvRV-2) was analyzed and expressed using baculovirus expression system. The sequence data indicated that the NSP4 gene of AvRV-1 and AvRV-2 were 727 bases in length, encoded one open reading frame of 169 amino acids beginning at base 41 and terminating at base 550, and had two glycosylation sites. Nucleotide sequences of NSP4 gene of AvRV-1 and AvRV-2 exhibited a high degree of homology (88.1±7.6%) with avian rotaviruses, namely Ty1, Ty3 and PO-13.
显示更多 [+] 显示较少 [-]Renal failure associated with ingestion of grapes and raisins in dogs
2005
Yuk, J.Y. (Gyeongsang National University, Jinju, Republic of Korea) | Kim, C.H. (Gyeongsangnam-do Livestock Promotion Institute, Jinju, Republic of Korea) | Kim, T.Y. (Ministry of Agriculture and Forestry, Kwacheon, Republic of Korea) | Kang, C.B. (Gyeongsang National University, Jinju, Republic of Korea), E-mail: cbkang@gsnu.ac.kr
This experiments was designed to observe the effect of period and dose of ingestion of grapes on renal failure in dog. After the dogs had been mixed of general feed, raisins from U.S.A and fresh grapes from Chile selling in Korea. We observed the clinical sign, and analyzed the blood and urine using by biochemical test. The experiment was executed by the two following groups. The experiment group 1. derived renal failure by supplying the mixed general feed with fresh grapes and dry grapes 15 g per weight kg, 2 times a day (AM 09, PM 21), the experiment group 2. executed to derive renal failure by supplying the mixed general feed with fresh grapes and dry grapes 40 g per weight kg, 2 times a day.
显示更多 [+] 显示较少 [-]The anti-emetic effect of needling acupuncture, aquapuncture and moxibustion at BL-20 and LIV-13 on the xylazine induced emesis in dogs
2005
Yoon, Y.H. (Chungnam National University, Daejeon, Republic of Korea) | Liu, Jian Zhu (Chungnam National University, Daejeon, Republic of Korea) | Kim, K.W. (Chungnam National University, Daejeon, Republic of Korea) | Kim, Y.S. (Chungnam National University, Daejeon, Republic of Korea) | Kim, J.Y. (Chungnam National University, Daejeon, Republic of Korea) | Jang, S.H. (Chungnam National University, Daejeon, Republic of Korea) | Nam, H.J. (Chungnam National University, Daejeon, Republic of Korea) | Song, K.H. (Chungnam National University, Daejeon, Republic of Korea) | Kim, M.C. (Chungnam National University, Daejeon, Republic of Korea) | Kim, D.H. (Chungnam National University, Daejeon, Republic of Korea), E-mail: dhkim@cnu.ac.kr
The present experiment was performed in order to know the anti-emetic effect of acupuncture, aquapuncture with metoclopramide and moxibustion on the xylazine induced emesis in dogs. The animals were devided into a control group (non-acupoint) and two experimental groups (BL-20 and LIV-13), respectively. Acupuncture, aquapuncture with metoclopramide (1 mg/kg) and moxibustion were applied to animals for 20 minutes before xylazine injection (2.2 mg/kg, IM). In acupuncture group, the emetic rates in BL-20 (16.7%) and LIV-13 (16.7%) were lower than that of control group (50%), respectively. In aquapuncture group, the emetic rates in BL-20 (16.7%) and LIV-13 (0.0%) were lower than that of control group (50%), respectively.
显示更多 [+] 显示较少 [-]Discrimination of Hanwoo from Holstein/black Angus meat by PCR-RFLP of MC1R gene
2005
Kim, T.J. (Chonnam National University, Gwangju, Republic of Korea) | Lee, J.I. (Chonnam National University, Gwangju, Republic of Korea), E-mail: jaeil@chonnam.ac.kr
The melanocortin 1 receptor (MC1R) plays an important role in regulation of melanin pigment synthesis within mammalian melanocytes. Mutations within the gene encoding MC1R have been shown to explain coat color variations within several mammalian species including cattle. To develope a rapid and accurate method for the identification of Hanwoo, we performed a modified PCR-RFLP analysis of MC1R gene using single nucleotide polymorphism (SNP) within MC1R as a target. A size of 538 bp (537 bp for Hanwoo) was amplified by PCR, digested with Hpa Ⅱ, and electrophoresed on a 1.5% agarose gel. A PCR product from Hanwoo showed a single band of 537 bp, whereas two fragments of 328 bp and 210 bp were detected in both Holstein and Black angus.
显示更多 [+] 显示较少 [-]Contamination patterns of Listeria spp. in pork processing plants using random amplified polymorphic DNA
2005
Ha, S.Y. (Kangwon National University, Chunchon, Republic of Korea) | Choi, W.S. (Dongguk University, Gyeongju, Republic of Korea) | Bahk, G.J. (Korea Health Industry Development Institute, Seoul, Republic of Korea) | Hong, C.H. (Kangwon National University, Chunchon, Republic of Korea), E-mail: hongch@kangwon.ac.kr
This study was carried out to understand the contamination patterns of Listeria in pork processing plants. A total of 402 samples were collected from carcass, pork during processing, surfaces of equipment and environment, and 238 isolates of Listeria species were identified. L. innocua was found in 64.7% of the isolates, L. monocytogenes in 33.2%, and L. welshimeri in 2.1%. Random amplified polymorphic DNA (RAPD) analysis performed to investigate the origin and routes of Listeria contamination, showed 21 composite types of L. monocytogenes and 26 composite types of L. innocua. It was confirmed that Listeria contamination begins with contaminated incoming carcass and ever-present contaminants in the processing environments.
显示更多 [+] 显示较少 [-]Localized and disseminated histiocytic sarcoma in two dogs
2005
Kwon, H.J. (Seoul National University, Seoul, Republic of Korea) | Cho, D.Y. (Louisiana State University, Baton Rouge, LA, USA) | Park, M.S. (Seoul National University, Seoul, Republic of Korea) | Oh, S.Y. (Seoul National University, Seoul, Republic of Korea) | Jee, H. (Seoul National University, Seoul, Republic of Korea) | Kim, D.Y. (Seoul National University, Seoul, Republic of Korea), E-mail: daeyong@snu.ac.kr
A male mixed breed dog with unknown age (case 1) and 5-year-old female golden retriever (case 2) were admitted to the Department of Veterinary Pathology at College of Veterinary Medicine, Seoul National University after sudden death. At necropsy, stifle region of case 1 was replaced by coalescing firm tan nodules approximately 1-3 cm in diameter. Neoplastic nodules were also presented in the lung. In case 2, the spleen was enlarged 3-5 times its normal size and numerous firm tan nodules were noted in the kidney, pericardium, diaphragm and lymph nodes. Histopathologically, the neoplastic masses of case 1 consisted of plump spindle cells having abundant cytoplasm and indistinct cell borders that formed interlacing bundle.
显示更多 [+] 显示较少 [-]Porcine juvenile pustular psoriasiform dermatitis in Korea
2005
Yoon, S.S. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea), E-mail: yoonss24@hotmail.com | Han, H.R. (Seoul National University, Seoul, Republic of Korea) | Lee, K.H. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea) | Bae, Y.C. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea) | Moon, O.K. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea) | Kwon, Y.K. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea)
Porcine juvenile pustular psoriasiform dermatitis (PJPPD) is a disease of young pigs and characterized by nonpruritic round eruption of skin. The cause of this disease is yet undetermined but is presumed to be genetic predisposition. There may be few opportunities for veterinarian to detect this disease compared with actual situation in field because these lesions resolve spontaneously in two months. The authors detected spontaneous PJPPD case and performed clinical and pathological studies on three pigs from one farm. The specific skin lesions were observed in the forty-day old pigs of mixed breed, which were produced by the sows received semen from the same boar, restrictively.
显示更多 [+] 显示较少 [-]Risk factors for infectious bronchitis virus infection in laying flocks in three provinces of Korea: preliminary results
2005
Pak, S.I. (Kangwon National University, Chunchon, Republic of Korea), E-mail: paksi@kangwon.ac.kr | Song, C.S. (Konkuk University, Seoul, Republic of Korea) | Mo, I.P. (Chungbuk National University, Cheongju, Republic of Korea) | Song, C.Y. (Boram Animal Hospital, Pyungtaek, Republic of Korea) | Kwon, H.M. (Kangwon National University, Chunchon, Republic of Korea) | Yoon, H.J. (Kangwon National University, Chunchon, Republic of Korea) | Son, Y.H. (Konkuk University, Seoul, Republic of Korea)
To analyze and identify selected risk factors for infectious bronchitis virus (IBV) infection in the growing and laying period of laying-hen flocks, a longitudinal field study was conducted with 27 commercial flocks reared in three provinces of Korea during the period from May 2003 to April 2004. Using monitored data for IBV infection status among study flocks we computed the multivariate odds ratios (ORs) and their corresponding confidence intervals (CIs), and population attributable risks (PARs). Multivariate logistic regression showed significant risk increments for: continuous entry of chick (OR=1.9, 95% CI, 0.7-69.1) and operation years of the layer house greater than or equal to 5 years (OR=3.2, 95%CI, 1.6-389.9).
显示更多 [+] 显示较少 [-]Effects of conjugated linoleic acid and selenium on body composition and serum cholesterol concentration in broiler chickens
2005
Jun, H.J. (Konkuk University, Seoul, Republic of Korea) | Kim, J.Y. (Konkuk University, Seoul, Republic of Korea) | Lim, J.J. (Konkuk University, Seoul, Republic of Korea) | Lee, S.H. (Konkuk University, Seoul, Republic of Korea) | Lee, B.H. (Konkuk University, Seoul, Republic of Korea) | Jeong, S.W. (Konkuk University, Seoul, Republic of Korea) | Park, H.M. (Konkuk University, Seoul, Republic of Korea) | Chung, B.H. (Konkuk University, Seoul, Republic of Korea), E-mail: chungbh@konkuk.ac.kr
The purpose of this study was to examine whether conjugated linoleic acid and selenium supplementation in broiler chicken diets would be effective, enhance indices of immune status and body weight, and modulate serum lipid concentration. Forty Hyline brown chickens, 1 weeks of age, were divided into 5 groups of 8 chickens. Chickens were fed the experimental diets supplemented with 1% CLA (conjugated linoleic acid; Group 1), 1% CLA + selenium (Group 2), 1% safflower-seed-oil as LA (Group 3), 1% safflower-seed-oil as LA + selenium (Group 4) or nothing (Control) for 4 weeks. After 4 weeks, serum, liver, spleen and abdominal fat were taken. Measurement of total immunoglobulin were executed using sandwich ELISA.
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