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Patterns of mastitic pathogens and antibiotic susceptibility of bovine clinical mastitis
1988
Kim, D. (Seoul National Univ., Suwon (Korea R.). Coll. of Veterinary Medicine)
A total of 593 mastitic pathogens was isolated from the clinical mastitic milk of dairy cattle in Kyonggi area from March 1984 to February 1988. The mastitic pathogens were further studied bacteriologically and examined for susceptibility patterns to 10 antibiotics. 173 pathogens were isolated in the first year of studies, 205 pathogens in the second year, 122 pathogens in the third year and 93 pathogens in the last year. The pathogens isolated from clinical mastitis were more in summer than other seasons. Staphylococcus spp (50%) and Streptococcus spp (18%) were the main pathogens in the first year of studies but coliforms (15%) and other bacteria (40%) were the main pathogens in the last year of studies. Coliform mastitis occurred only in summer and autumn. Antibiotic susceptibility patterns of the same genuses from clinical mastitis infections in different herds and in different years varied greatly. Therefore, treatment should be selected on the basis of susceptibility test results
Show more [+] Less [-]A survey of Sarcocystis infections in slaughtered cattle in Korea
1988
Kang, Y.B. | Kim, S.H. | Wee, S.H. (Rural Development Administration, Anyang (Korea R.). Veterinary Research Institute)
A preliminary survey of Sarcocystis species in the slaughtered cattle in Seoul was undertaken during October through December 1987, using digestion diagnostic technique for the heart muscle specimens digested in 0.5 % trypsin solution. Results indicated that 41.5 % of 159 bovine hearts were infected with Sarcocystis proliferative forms. High frequencies in the exotic dairy cattle (42.2%) and the Korean native cattle (41.7%) were noticed in comparison with low frequency in the cross breed (25.0%). No differences were indicated between the sexes of the host animals, although an age difference was noticed as 48.9 % in cattle older than four years in comparison with 39.0 % and 37.1 % in younger than two years and in two to four years, respectively
Show more [+] Less [-]Prevalence and morphological identification of Eimeria bukidnonensis and E. wyomingensis in cattle, Korea
1988
Wee, S.H. | Kang, Y.B. | Kim, S.H. (Rural Development Administration, Anyang (Korea R.). Veterinay Research Institute)
To determine the prevalence and the morphological identification of two Eimeria species in fecal examinations, a total of 1092 fecal specimens collected during the period of March to December in 1987 was tested by means of flotation technique. The prevalence of two species was revealed as 1.83% and 0.92% in E. bukidnonensis and E. wyomingensis, respectively. The oocysts of E. bukidnonensis measured in range of 41.3 micro m to 49.4 micro m (mean 45.5+-1.7) x 28.8 micro m to 35.3 micro m (mean 32.2 +-1.2), and E. wyomingensis 36.9 micro m to 44.5 micro m (mean 39.8+-1.7) x 26.5 micro m to 29.9 micro m (mean 28.2+-0.9). The oocysts of E. bukidnonensis appeared darker and more robust than those of E. wyomingensis. The striations in the oocyst wall of E. bukidnonensis were more peculiar than in E. wyomingensis. Among the morphological characteristics, the widths could be reliably taken as a differential point of view for two Eimeria species
Show more [+] Less [-]Changes in blood cellular components, serum chemical values and serum enzyme activities in Korean native cattle infested with Fasciola hepatica
1988
Wee, S.H. | Park, S.J. (Chonnam Animal Health Laboratory, Soonchun (Korea R.). Soonchun Animal Health Station) | Lee, C.G. (Chonnam National Univ., Kwangju (Korea R.). Coll. of Veterinary Medicine)
Some hematological and biochemical indices were assayed in Korean native cattle naturally harbouring Fasciola hepatica infection and compared with uninfected controls. Affected animals revealed reduction in total erythrocyte count and hemoglobin content, and increase in total leukocyte count. Infected cattle had significantly lower levels of serum total protein, serum albumin and magnesium. Significantly higher values were obtained for the serum enzymes asparate aminotransferase and alanine aminotransferase
Show more [+] Less [-]Incidence and morphology of Buxtonella sulcata from cattle in Chonnam area
1986
Wee, S.H. | Park, Y.J. | Lee, C.G. (Chonnam National Univ., Kwangju (Korea R.). Dept. of Veterinary Medicine)
Samples of feces from 1,080 cattle than in Chonnam area were examined for Buxtonella sulcata. Of these, 231 cattle (21.4%) were found to be infected with the ciliate. The incidence was higher in the dairy cattle in the beef cattle. The cysts of the ciliate were almost spherical or sub-spherical and the mean length of 79.58 +- 11.76 micro m corresponds quite closely with the mean width of 77.29 +- 11.41 micro m. The trophozoite was characterized by the position of the cytostome near the open cytopyge and by the curved groove running down from cytostome to the end of the body
Show more [+] Less [-]Studies on salmonella isolated from cattle
1986
Jung, S.C. | Choi, W.P. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine)
This paper deals with the isolation of Salmonella on 3 herds during the period from May 1984 to May 1985. Isolated Salmonella were examined for serotypes, adhesive fimbriae, antibiotic susceptibility and detection of R plasmid. Of total 1505 cattle, 24 Salmonella were isolated from 18 cattle (1.2%) and their serotypes were S. enteritidis (9 strains), S. derby (4 strains), S. infantis (1 strain), C1 group (8 strains), C2 group (1 strain) and untypable (1 strain). Twelve strains of Salmonella were isolated from 227 cattle with diarrhea and their serotypes were S. enteritidis (4 strains), S. derby (3 strains), S. infantis (1 strain), C1 group (3 strains) and untypable (1 strain)
Show more [+] Less [-]Distribution of the mast cells in the parenchymal organs of the cattle, horses, pigs, dogs, and Rompun-induced mast cell degranulation in the dogs
1985
Kim, T.H. | Lee, C.S. (Kyongbuk National Univ., Taegu (Korea R.))
This paper dealt with the distribution of normal mast cells in the spleen, liver and lung on cattle, horses, pigs and dogs, and also degranulation of mast cells in the dogs injected with Rompun (2% Xylazine HCl). Normal mast cells were distributed in spleen, liver and lung on cattle, horse, pig and dog. Mast cells were observed in both red pulp and surroundings of white pulp of the spleen in horse, in the white pulp of the spleen in cattle, in the trabeculae of the spleen in pigs, and in white pulp and red pulp of the spleen in dogs
Show more [+] Less [-]Observations on foot disease of slaughter cattle
1985
Kim, M.C. (Yonsei Univ., Seoul (Korea R.). Inst. of Agricultural Development)
Incidence of foot disease of Korean native cattle (231 cases) and Holstein (310 cases) in slaughter house was observed from Jul to Aug, 1984. Incidence rate of foot disease was 9.09%, 12.90% and 11. 27% for Korean native cattle, Holstein and total respectively. Chronic necrotic pododermatitis showed the highest incidence among all foot disease and its incidence rate was 6.47% in all cattle observed
Show more [+] Less [-]Appearance of globule leukocytes in tracheal and broncheal mucosa in Korean native cattle with pneumonia and rats experimentally infected with Klebsiella pneumoniae
1997
Park, S.J. | Jeong, K.S. (Korea Rearch Institute of Bioscience and Biotechnology, KIST, Taejon (Korea Republic)) | Lee, C.S. (Kyongpook National University, Taegu (Korea Republic). College of Veterinary Medicine)
Transvaginal ultrasound-guided ovum pick-up incattle 1. Effects of estrus cycle, season and bST treatment on ovum pick-up in cattle
1997
Lee, B.C. | Yoon, K.Y. | Roh, S.H. | Lee, K.N. | Hwang, W.S. (Seoul National University, Seoul (Korea Republic). College of veterinary Medicine) | Kim, H.I. (Cheil Chem. Company, Ansan (Korea Republic))