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Studies on exudative epidermitis in pigs, 1; isolation and some properties of Staphylococcus hyicus subsp. hyicus from diseased and healthy pigs
1986
Park, C.K. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine) | Kang, B.K. (Chonnam National Univ., Kwangju (Korea R.). Dept. of Veterinary Medicine)
Isolation of Staphylococcus hyicus subsp. hyicus from piglets suffering from exudative epidermitis and healthy pigs was performed, and some properties of the isolates were examined. Twenty-six litters of exudative epidermitis observed in the field were sucking piglets with ages ranging from 1 to 5 weeks and most (73.1%) of these cases occurred in piglets between 2 and 3 weeks of age. Staphylococcus hyicus subsp. hyicus was isolated from 192 (38.9%) of 494 healthy pigs. The rate of isolation of these organism from healthy pigs was found to vary greatly among farms at an isolation rate of 33.3% to 45.5% and this organism was isolated more frequently from sucking piglets below the age of 8 weeks than adult pigs
Показать больше [+] Меньше [-]Studies on the factors influcing the growth of swine testicle cells and the END effect of hog cholera virus
1986
Jeon, Y.S. (Seoul National Univ., Seoul (Korea R.). Dept. of Veterinary Medicine)
The bovine serum influencing the growth of swine testicle (ST) cell and the END effect of hog cholera SN test was studied. Bovine whole serum of 16 (76.2%) and 4 (19.0%) samples out of 21 have shown a positive ST cell growth and the END effect, respectively. However, all of 21 (100%) and 8 (38.1%) samples out of 21 serum supernatant fractions, prepared from the bovine whole serum, have shown positive ST cell growth and END effect, respectively
Показать больше [+] Меньше [-]Effect of dexamethasone on porcine enterovirus infections in pigs
1986
Chang, S.M. | Lee, C.S. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine)
Four colostrum-deprived, 1 day old pigs were orally infected with the porcine enterovirus isolated in Korea. Two of the pigs were treated with dexamethasone (5mg/kg/day) for 3 days. The others as control were infected with porcine enterovirus only. The treated, infected pigs developed ataxia at 3 postinoculation days, neural disorders at 8 postinoculation days, 1 week earlier than those of the controls. Histopathological examination of both the treated and the control pigs revealed non-purulent polioencephalomyelitis consisting of neuronal degeneration, perivascular cuffing, meningeal infiltration, focal and diffuse gliosis. The severity of the histopathological lesions in the treated pigs was more prominent than those of the controls
Показать больше [+] Меньше [-]Pathogenesis of perirenal edema in pigs and rabbits administered with oxalate, nitrate and calcium
1986
Cho, S.W. (Chungnam National Univ., Taejon (Korea R.). Dept. of Veterinary Medicine) | Lee, C.S. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine)
In order to clarify the pathogenesis of perirenal edema, pigs and rabbits were administered with oxalate and nitrate, with oxalate nitrate and glycolic acid, with oxalate, nitrate and ascorbic acid and with oxalate, nitrate and calcium, respectively. The pigs and rabbits administered with oxalate and nitrate with oxalate, nitrate and glycolic acid and with oxalate, nitrate and ascorbic acid, respectively, were not showed perirenal edema despite of observing the abundant oxalate crystals in the proximal convoluted tubles
Показать больше [+] Меньше [-]Epizootiological study of salmonella infection on piggery, 1; study on distribution, occurrence, serovars and biovars
1986
Choi, W.P. | Lee, H.S. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine) | Yeo, S.G. (Kyongsang National Univ., Chinju (Korea R.). Dept. of Veterinary Medicine) | Lee, H.J. (Chungnam National Univ., Taejon (Korea R.). Dept. of Veterinary Medicine) | Jung, S.C. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine)
This paper deals with the distribution, reservoir and mode of spread of salmonella infection on 7 pig farms in Taegu, Kyongbuk, Kyongnam and Chungnam and a slaughter house in Taegu during the period from May 1984 to May 1985. Isolated salmonella were examined for serotypes and biotyping of S. typhimurium. Of total 7,995 samples from 7 pig farms and a slaughter house, 319 salmonella were isolated from 234 samples (2.9%) and their serovar strains were S. derby 77, S. infantis 41, S. enteritidis 20, S. typhimurium 18, S. bredeney 16, S. london 14, S. paratyphi B 9, anatum 8, S. montevideo 8, S. senftenberg 7, S. thompson 6, S. pullorum 4, S. paratyphi A a and untypable 70
Показать больше [+] Меньше [-]Observation of papillary tubercles on the capsule of swine spleen, 2; histological structures of papillary tubercles
1986
Kwak, S.D. (Kyongsang National Univ., Chinju (Korea R.). Dept. pf Veterinary Medicine)
The papillary tubercles (PTs) developed on the splenic capsule of normal Landrace pigs were collected and their histological structures were observed with light microscope. The external features of the PTs were smooth spherical or oval form protruded on the splenic capsules. On cross section of PTs, the shapes were predominantly round or elliptical single follicular form, and were often multifollicular and irregular form in some PTs
Показать больше [+] Меньше [-]An epizootiological study of salmonella infection on piggery, 2; a study on drug resistance and R plasmids in Salmonella
1986
Choi, W.P. | Lee, H.S. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine) | Yeo, S.G. (Kyongsang National Univ., Chinju (Korea R.). Dept. of Veterinary Medicine) | Lee, H.J. (Chungnam National Univ., Taejon (Korea R.). Dept. of Veterinary Medicine) | Jung, S.C. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicne)
This paper deals with the incidence of antibiotic resistance and of R plasmids in 319 Salmonella strains isolated from various samples on 7 piggeries in Taegu, Kyongbuk, Kyongnam and Chungnam and a slaughter house in Taegu during the period from May, 1984 to May, 1985. Of the 319 strains examined, 250 (78.4%) were resistant to one or more antibiotics such as ampicillin (Am), chloramphenicol (Cm), gentamicin (Gm), kanamycin (Km), sulfadimethoxine (Su), streptomycin (Sm), rifampicin (Rf) and tetracycline (Tc), and higher resistant to Su (74.9%), Sm (53.0%) and Tc (28.5%). Only two Salmonella strains isolated from A and C farms were resistant to Rf and Gm, respectively
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