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Meningoencephalitis and pneumonia caused by Pasteurella multocida in rabbits
2018
Jeong, J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Lee, K., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Choi, E.J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Kim, H.Y., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Sohn, J.H., Gyeonguk Veterinary Service Laboratory, Andong, Republic of Korea | So, B.J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Jung, J.Y., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
Eight rabbits exhibited head tilt and subsequently died. At necropsy, three rabbits had crusty deposits in ears and four had reddish lungs. The main histopathological features were severe diffuse suppurative meningoencephalitis (75.0% of rabbits), fibrinopurulent pneumonia (37.5%), and otitis externa (37.5%). Pasteurella multocida (P. multocida) was isolated from brains, ears, and lungs. The capsular serogroups of the isolates were untypable. Based on histopathological features and bacterial analysis results, the rabbits were diagnosed as P. multocida infection. P. multocida infections might result in considerable economic loss in commercial rabbit production facilities in Korea.
Mostrar más [+] Menos [-]Primary dermal irritation study of oregano oil in rabbits
2005
Shin, J.Y. (Chonnam National University, Gwangju, Republic of Korea) | Park, S.C. (Kyungpook National University, Daegu, Republic of Korea) | Kim, K.H. (Biomist Co., Daejeon, Republic of Korea) | Bae, J.H. (Korea Institute of Toxicology, KRICT, Daejeon, Republic of Korea) | Shin, D.H. (Chonnam National University, Gwangju, Republic of Korea) | Kim, S.H. (Chonnam National University, Gwangju, Republic of Korea) | Bae, C.S. (Chonnam National University, Gwangju, Republic of Korea) | Kim, J.C. (Chonnam National University, Gwangju, Republic of Korea), E-mail: toxkim@chonnam.ac.kr
The present study was carried out to investigate the skin irritation potential of oregano oil in rabbits. A volume of 0.5 ml of test article was applied to intact and abraded skins, respectively, for 24 h in 6 healthy male New Zealand White rabbits. Parameters measured during 72 h observation period were mortality, clinical signs, body weight changes, and local irritation. Treatment-related toxic symptoms, as evidenced by anorexia and decreased locomotor activity, were observed in all rabbits tested. Two rabbits out of the 6 total died on day 2 after the application of test article due to treatment-related toxicity.
Mostrar más [+] Menos [-]Studies on the postnatal development of the Leydig cell in rabbits
2005
Tae, H.J. (Chonbuk National University, Jeonju, Republic of Korea) | Ahn, D.C. (Kangwon National University, Chuncheon, Republic of Korea) | Park, Y.J. (Chonbuk National University, Jeonju, Republic of Korea) | Kang, H.S. (Chonbuk National University, Jeonju, Republic of Korea) | Kim, N.S. (Chonbuk National University, Jeonju, Republic of Korea) | Park, S.Y. (Chonbuk National University, Jeonju, Republic of Korea) | Yang, H.H. (Chonbuk National University, Jeonju, Republic of Korea) | Kim, I.S. (Chonbuk National University, Jeonju, Republic of Korea), E-mail: iskim@chonbuk.ac.kr
Changes in the rabbit Leydig cell from birth to adulthood were studied in New Zealand white rabbits of 1, 7, 21, 35, 49, 70, 105, 147, 196, and 252 days (n = 8 rabbits per group) of age. The objectives of this study were to understand the fate of the fetal Leydig cells, to determine the changes in serum testosterone levels, and leutenizing hormone-stimulated testosterone production per testis in vitro, and to quantify adult Leydig cells by number and average volume with age. Testes of rabbits were fixed by whole body perfusion using a fixative containing 2.5% glutaraldehyde in cacodylate buffer, processed and embedded in Epon-araldite.
Mostrar más [+] Menos [-]Effects of xylazine-ketamine combination on serum ACTH, corticosterone and glucose concentrations in rabbits
1999
Park, K.M. | Li, L.H. | Han, S.K. | Ryu, P.D. (Seoul National University, Suwon (Korea Republic). College of Veterinary Medicine)
Anesthetic agents are useful in inducing the anesthesia for surgical operations and various biological experiments, but they can disturb the body homeostasis and cause the stress in animal. Much efforts have been directed on reducing such side effects of anesthesia. In this work, we measured the serum ACTH, corticosterone and glucose concentration in rabbits to compare the degree of stress induced by two commonly-used anesthetics, ketamine, xylazine, and the combination of xylazine and ketamine. 1. The anesthesia was induced in about 10 min in the rabbits treated with xyalzine, ketamine and xylazine-ketamine. The duraion of complete loss of righting reflex were 12, 13 and 115 min in the groups treated with xylazine, ketamine and xylazine-ketamine, respectively. 2. Serum ACTH concentrations in all treatment groups were gihger than those in control group. At 30 min after the administration of the drugs, serum ACTH levels in ketamine-treated group were significantly higher than those in control, xylazine- and xylazine-ketamine-treated groups. However, at 1, 2, 5 and 9 hours after the drug administration, serum ACTH levels in xylazine-treated-group were gihger than those in control. 3. Serum corticosterone levels in xylazine- and xylazine-ketamine-treated groups were lower than those in control or ketamine=treated groups at 0.5 and 1 hour after the administration. However, at 5 and 9 hours after the administration, serum corticosterone levels inxylazine- and xylazine-ketamine-treated groups were significantly higher than those in ketamine-treated group or control. 4. Serum glucose levels transiently increased to 3 tives of the pre-injection levels at 0.5 and 1 hours after the administration in xylazine or xylazine-ketamine-treated groups, but were not changed in control and ketamine-treated group. These results indicate that xylazine-induced stress lasts longer than ketamine-induced, suggesting that the difference in stress-related hormone levels during anethesia could be due to the differences in modes of actions of individual drugs used and the depth of anesthesia.
Mostrar más [+] Menos [-]Magnetic resonance imaging characteristic of lymph nodes: Comparison of T1 and T2 weighted image in normal rabbits
Lee, K.C.;Choi, M.C.;Choi, H.J.;Yoon, J.H.;Choi, S.H.;Moon, W.K.;Chung, J.W.(Seoul National University, Seoul, Republic of Korea)E-mail:mcchoi@snu.ac.kr
The detection of lymph node metastasis is an important step in tumor staging and is significant for therapy planning. It has been challenged to yield an appropriate image with diagnostic methods such as Magnetic Resonance (MR) and Computed Tomography (CT). Though CT has been used widely and accessed easily to show internal organs, it can hardly provide difference between lymph node and adjacent vessel or fat tissue. It has been well established that MR can reveal the subtle discrepancy within soft tissue.
Mostrar más [+] Menos [-]Effect of scan-bio laser therapy on arthropathy in rabbits
Cho, H.J.;Kim, Y.S.;Oh, D.M.;Sim, K.M.;Kang, S.S.;Bae, C.S.(Chonnam National University, Gwangju, Republic of Korea)E-mail:csbae210@chonnam.ac.kr | Lim, S.C.(Chosun University, Gwangju, Republic of Korea) | Cho, Y.S.;Lee, S.H.(Konkuk University, Seoul, Republic of Korea) | Choi, S.H.(Chungbuk National University, Cheongju, Republic of Korea)
For the induction of arthropathy, 4% hydrogen peroxide (H₂O₂) was injected for 4 weeks into the intra-articular space of the 25 New Zealand white rabbits to damage articular cartilage. The verification of arthropathy induction and the effect of scan-bio laser treatment were determined by measuring superoxide dismutase (SOD) activity, by observing gross and histopathologic findings. The SOD activity increased by about 40% in arthropathy group, as compared to controls.
Mostrar más [+] Menos [-]Relationship between estradiol-17beta and IGF-I receptor expression in primary cultured rabbit renal proximal tubule cells
1997
Han, H.J. | Nam, S.A. | Park, K.M. (Chonnam National University, Kwangju (Korea Republic). College of Veterinary Medicine)
Pathological findings of paraquat poisoning in mice, rats and rabbits
1994
Lee, S.J. | Cho, S.W. (Chungnam National University, Taejon (Korea Republic). College of Veterinary Medicine)
Pharmacokinetics of oxytetracycline in rabbits after intravenous and intramuscular administrations
1994
Kim, E.J. | Yun, H.I. | Park, S.C. (Chungnam National University, Taejon (Korea Republic). College of Veterinary Medicine) | Oh, T.K. (Korea Advanced Institute of Science and Technology, Taejon (Korea Republic). Genetic Engineering Research Institute) | Cho, C.H. (Rural Development Administration, Anyang (Korea Republic). Veterinary Research Institute)
Effect of berberine on intestinal contractility
1994
Shin, D.H. (Chonnam National University, Kwangju (Korea Republic). College of Veterinary Medicine)