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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Veterinary Service
Journal Basic Information
Journal DOI :
The Korean Society of Veterinary Service
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Volume & Issues
Volume 21, Issue 4 - Dec 1998
Volume 21, Issue 3 - Oct 1998
Volume 21, Issue 2 - May 1998
Volume 21, Issue 1 - Apr 1998
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Epidemiological survey of Bovine Tuberculosis in Kyonggi province (1987-1996)
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 1~12
As the result of epidemiological analysis on bovine tuberculosis in Kyonggi province during the last ten years(1987-1996), 1. The annual incidence number of bovine tuberculosis positive farms in Kyonggi province fell down from 81 in 1987 to 14 in 1989. But the incidence is increased since 1990, in 1995 the incidence number was 102 farms of the most incidence. Total number of bovine tuberculosis positive farms were 456 farms(56.7%) in Kyonggi province during the 1987-1996 period. 2. The developmental trends of bovine tuberculosis positive heads was similiar to that of positive farms. Since 1993, the incidence was suddenly increased. Total number of bovine tuberculosis positive heads were 1,015 head(64.3%) in Kyonggi province during the 10 years. 3. Average incidence for rate during the last ten years(1987-1996) was 0.10%. The positive rate was suddenly increased since 1993 and in 1996, the positive rate was 0.23% of the highest incidence. 4. Regional Incidence number of bovine tuberculosis positive heads in Kyonggi province during the last seven years(1990-1996) was the most in Hwasung, Pochon, Pyungtek in order of Incidence and bovine tuberculosis positive density was 1.297% of the highest in Buchon. 5. In 244 farms(82.4%), bovine tuberculosis first occurred during the last seven years (1990-1996) but in farms over second occurrence, the number of bovine tuberculosis positive heads were 520 heads(58.2%).
Detection of residual antibiotic and sulfonamide agents in emergency slaughtered cattle
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 13~20
This survey was carried out to detect the residual antibiotics and sulfonamides in emergency slaughtered cattle(n=265) from slaughter houses in Kyeonggi province by EEC 4-plates method, Charm II and HPLC. The results were summarized as follows ; 1. Antimicrobial substances were detected from 24 samples(9.1%) by EEC 4-plates method and the detection ratio were highest in summer(13.8%). 2. Twenty-two of the 24 positive samples were classified as sulfonamide(34.4%), TCs(31.3%),
-lactam(23.5%) and aminoglycoside(9.3%) by Charm II test. 13(59.1%) of the 22 samples contained single agent and 9 samples(40.9%) contained 2 or more agents. 3. Oxytetracycline(27.3%), penicillin G (27.3%) and sulfathiazole(18.2%) were detected in 20 from 22 samples by the HPLC and Charm II test. 4. The residual concentration of oxytetracycline, penicillin G and sulfonamide were 0.29~9.30 ppm, 0.05~9.58 ppm and 0.04~7.59 ppm, respectively and 19 samples(7.2%) were exceeded tolerance levels.
Microbiological studies on endometritis in cattle and dairy cows
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 21~27
In order to investigate reproductive disorder in dairy cows, 312 uterine from abattroirs and 56 cows from dairy farms were examined. The ovary and uterine were collected from abattroirs and rectal palpation was carried out in the case of reproductive disorder at dairy farm. Microbiological examination was also carried out from the collected samples. 1. Out of 312 ovaria from slaughter-house, cystic ovary and endometritis were classified as 51(16%) and 134(43%), respectively. And of 56 dairy cow from farms, 43(77%) were identifies as endometritis. 2. The main cause of reproductive disorder was classified as hormonal imbalances, endometritis and cystic ovary, singly or in combination. 3. The main causative agents of endometritis was encountered as E coli, Staphylococcus aureus, Bacillus sp and Corynebacterium sp. 4. The highest susceptible antibiotics to the isolates was cephalosporin.
A study on Toxoplasmosis in dogs
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 29~39
This study was carried out to investigate the prevalence of antibody against Toxoplasma gondii in the dog by Latex agglutination test and Indirect fluorescent antibody test. Two month-old dogs were infected intraperitoneally with T gondii to observe histopathological and immunohisto-chemical changes. Results obtained through this experiment were summarized as follows ; 1. Among the serum samples of 163 heads of the dog, 10 samples(6.1%) were positive. 2. In the sex, 6 heads (7.1%) out of 84 female dogs and 4 heads(5.1%) out of 79 male dogs were positive. However, there were no significant differences between the male and female. 3. Overall proportion of agreement between indirect fluorescent antibody and Latex agglutination test in 163 sera of dogs was 97.5%. 4. When 2 month-old dogs were infected intraperitoneally with T gondii, main clinical signs were intermittent fever, dyspnea, diarrhea. In general, the infected dogs recovered closely on the 11th day of post-inoculation. 5. At necropsy, petechial and ecchymotic hemorrages and swelling in small intestine, lung, spleen, liver and kidney were observed. 6. In histopathological observation, interstitial pneumonia, hyperemia and hemorrhages in lung were observed. Focal necrosis of hepatocytes, the neutrophil and basophil in the renal tubular epithelium were observed. 7. By immunohistochemical staining using Vectorstain ABC kit, the positive cells were recognized in the lung and the liver. 8. By indirect fluorescent antibody test, the Toxoplasma antibodies in the infected dogs were detected on the 15th day of postinoculation.
Study on the pulmonary lesions and the function of alveolar macrophage in the rats exposed to cement dust
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 41~56
These experiment was carried out to investigate the pulmonary lesions and the function of alveolar macrophages in rats exposed to cement dusts. 1. The number of total cells in bronchoalveolar lavage fluid(BAL) increased remarkably in 1st month. As time goes by, tend to less and less in numbers. 2. The number of neutrophil and lymphocytes obtaining from the total cell of BAL increased remarkably in first month, but as time goes by, they tended to grow less and less in number. Macrophages decreased gradually after being temporarily augmentation. 3. Histipathologically, the thickening of alveolar walls, alveolar interstitial, and infiltrated macrophages containing cement dusts.
Differential diagnosis of ovarian cysts using ultrasonogrphy and progesterone assay in slaughtered cows
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 57~66
To establish the differential diagnosis and treatment method in bovine ovarian cysts, specially ovarian cysts with corpus luteum, serum progesterone concentration and ulrasonography for measuring the cyclic area, thickness of cystic wall and echogenicity of corpus luteum were investigated in cystic ovaries from slaughtered cows. The incidence rates of ovarian cysts were follicular cyst 69.2% and luteal cyst 30.8%. The incidence rates of 8 various types of ovarian cysts were as follows; 2Ba 32.3%, 2Aa 25.8% and 2Bb 14.5%, respectively. The thickness of cystic wall were 2Bb 3.93mm, 2Ab 3.70mm and 1Aa 1.93mm and the serum progesterone concentrations were above 1.0ng/
in 2Ab, 2Bb and IAa, respectively. The cystic area of ovarian cysts with corpus luteum was 288.30mm2, but ovarian cysts without corpus luteum 542.30
, and the thickness of cystic wall 2.12mm and 2.40mm, respectively. The serum progesterone concentration was 1.91ng/
in ovarian cysts with corpus luteum and 1.20ng/
ovarian cysts without corpus luteum. There was not the correlations between thickness of cystic wall and serum progesterone concentration in ovarian cysts with corpus luteum, whereas, was the correlations in ovarian cysts without corpus. These results indicated that PGF2
analogues can be choice for treating the ovarian cysts with corpus luteum because serum progesterone concentrations were above 1.0ng/
in ovarian cysts with corpus luteum. In conclusion, it is suggest that ultrasonography is useful diagnostic tool for diagnosing and choicing of treatment remedy in cystic ovaries of bovine.
An abattoir survey and pathologic study of abdominal fat necrosis on Korean indigenous cattle
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 67~77
The bovine fat necrosis is often seen as an incidental lesion in the adipose tissues of the abdominal cavity. Most of affected animals, however, have been detected at the slaughter house or routine necropsy. The purpose of this study was to examine the occurrence and distribution of abdominal fat necrosis in Korean native cattle, and its pathologic features. Postmortem inspection at an Chonju abattoir during a three-month period in 1997 detected at necrosis lesions in 67(6.6%) of the 1,012 animals received for slaughter. The occurrence was mainly in alimentary tracts and perirenal. Both sexes were affected, but the lesion were predominantly occurred in female. Gross lesions were white or yellowish in color and formed hard lumps irregular in shape ranging from small nodules to large solid masses. On the cut surface, lesions were occasionally seen chalky calcified granules and some of the lesions contained oil-like fluid. The surface of irregular shaped masses constricted kidneys and intestinal loops. Microscopically, the masses were encapsulated by thickened fibrous tissue, which infiltrated deeply and divided them into many irregular lobules. Initial lesions presented mild inflammatory cell and fibrous proliferation. It became fibroplasia in progressive lesions and resembled chronic lesion, eventhough no grossly apparent inflammatory reaction. The hard consistency of masses, due to fibroplasia, can compress the intestines, urinary organs, and reproductive organs.
Survey on the prevalence of internal parasites from outside rearing dogs in Kyungbuk province
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 79~85
This study was carried out to identify the infection rate of common internal parasites according to the age and the incidence of single or mixed parasitic infections from outside rearing dog in Kyungbuk province. Fifty-one dogs in 4 dog rearing farms were examined, and fece samples of dog's were freshly collected from farm ground and rectum swabs. The results obtained from this study were summarized as follows ; 1. Out of 51 dogs examined, 9 dogs were infected with some helminths, and mean infection rate was 17.6%. 2. The frequently encountered helminths were Ancylostoma caninum and Trichuris vulpis (32.3%), Toxascaris leonina(16.7%), Dipylidium caninum(8.3%) and Isospora sp(8.3%), in order. Specially the prevalence of Toxascaris leonina was relatively high in this study than other reports, and its significance was discussed. 3. The infection rate in younger dogs was higher than that of older dogs, especially that of the dogs under 6 months old was 31.3%, 6 months to 1 year old dogs was 0.8%, and over 1 year old dogs was 18.2%, respectively. 4. Single infection rates with Ancylostoma cantnum, Trichuris vulpis, Toxascaris leonina, Dipylidium caninum and Isospora sp were 11.8%. But double infection rates with the Ancylostoma caninun plus Trichuris vulpis and Toxascars leonina was 5.8%.
Serological study on canine parvovirus in the puppies
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 87~95
The present study was conducted to characterize maternal antibody status which haemagglutination inhibition(HI) titers against canine parvovirus(CPV) in the 15 puppies delivered from 3 dams. The range of HI titers of 5 puppies delivered from a mother dog(A) with HI titer of 1 : 1,024 were 1 : 16~1 : 64 at 1 day old before suckling, 1 : 512~1 : 1,024 at 2 days old after suckling, 1 : 512~1 : 2,048 at 1 week old, 1 : 256~l : 1,024 at 2 weeks old, 1 : 128~l : 512 at 3 weeks old, 1 : 128~l : 256 at 4 weeks old, 1 : 32~1 : 128 at 5 weeks old, 1 : 16~1 : 64 at 6 weeks old, 1 : 16~1 : 64 at 7 weeks old, and 1 : 16~l : 32 at 8 weeks old. After vaccination with DHPPL to canine parvovirus in 60 days and 80 days old puppies, 1 : 8~l : 32 at 9 weeks old, 1 :16~1 : 128 at 10 weeks old, 1 : 32~1 : 256 at 11 weeks old, 1 : 16~1 : 256 at 12 weeks old, 1 : 128~1 : 256 at 13 weeks old, 1 : 64~l : 512 at 14 weeks old, and 1 : 128~1 : 512 at 15 weeks old. The HI titers of 3 puppies delivered from a mother dog(B) with HI titer of 1 : 512 were 1 : 16 at 1 day old before suckling, 1 : 256~1 : 512 at 2 days old after suckling, 1 : 512 at 1 week old, 1 : 128~1 : 256 at 2 weeks old, 1 : 64~1 : 128 at 3 weeks old, 1 : 64~1 : 128 at 4 weeks old, 1 : 128 at 5 weeks old, 1 : 64~1 : 128 at 6 weeks old, 1 : 16 at 7 weeks old, and 1 : 8 at 8 weeks old. After vaccination with DHPPL to canine parvovirus in 60 day and 80 days old puppies, < : 8~l : 8 at 9 weeks old, < : 8 ~1 : 16 at 10 weeksold, 1 : 64~1 : 128 at 11 weeks old, and 1 : 256~1 : 512 at 12 weeks old. The HI titers of 7 puppies delivered from mother dog(C) with Hl titer 1 : 1,024 were 1 : 512~1 : 1,024 at 2 days old after suckling, 1 : 256~1 : 1,024 at 1 week old, 1 : 256~l : 1,024 at 2 weeks old, 1 : 64~1 : 512 at 3 weeks old, 1 : 64~1 : 512 at 4weeks old, 1 : 8~l : 64 at 5 weeks old, 1 : 8~1 : 64 at 6weeks old, 1 : 8~1 : 32 at 7 weeks old, and < : 8~1 : 8 at 8 weeks old. Antibody to CPV was transferred mainly from mother to progeny through the colostrum and the transferred maternal antibody was in proportion to the HI titer of the mother As the HI titer of maternal antibody in puppies was low, puppies have a rapid immune response and a massive rise in HI titer to vaccination against CPV compared with puppies haying high level of maternal antibody.
Isolation and identification of pathogenic fungi from animal feedstuffs
Korean Journal of Veterinary Service, volume 21, issue 1, 1998, Pages 97~104
Fugi are eukaryotic, nonphotosynthetic, filamentous or unicellular organisms, most of which grow on nonliving materials as saphrophytes. The majority are therefore opportunistic pathogens and predisposing factors often contribute to the establishment of fungal infection. These include an alteration in the normal flora of the host by prolonged administration of antibiotics, immunosup-pression, concurrent infections, damage to the skin or mucous membranes, constantly moist areas of skin or the exposure to a large infective dose, and as with fungal spores. Fungi may cause a variety of diseases which may be due directly to fungal invasion of tissue or more often to the ingestion of toxins produces by fungi in growing, standing or stored grains and other animals feeds. In this experiment, contaminated fugi were isolated and identified from animal feedstuffs such as Korean cattle, milking cows, pigs and chickens. Twelve genues were isolated from animal feeds, they are 9 from Korean cattle and milking cows feeds, 6 from pigs feeds, and 10 from chickens feeds. Among them, most frequently encountered species was Yeast(56 strains), followed by Fusarium sp(41 strains), Aspergillus sp(20 strains), each of Micorsporum sp and Trichophyton sp(17 strains), Penicilium sp(12 strains), in order. And also minority was isolated as Candide sp(4 strains), Trichoderma sp(3 strains), each of Epidermophytom sp and Absida sp(2 strains), and each of Sporothrix sp and Maduromyces sp(1 strain). Among the Aspergillus sp 20 isolates, A flavus(5 strains), A nidulans(4 strains), A fumigatus(3 strains), A glucans(3 strains), A niger(3 strains) and A terreus(2 strains) were identified.