• Korean Journal of Veterinary Service
• /
• v.26 no.4
• /
• pp.339-343
• /
• 2003

We studied the effect of epigallocatechin-3-gallate(EGCG) on the adipose conversion of 3T3-L1 cells by insulin. In the 10 days of culture with insulin, the fat cells exhibited the increased and larger intracytoplasmic lipid droplets. In contrast, the levels of triglyceride(TG), a marker of adipose conversion, were decreased. However, the levels of glucose were decreased in the adipose conversion. In addition, levels of cholesterol were decreased in the differentiated 3T3-L1 cells.

• Korean Journal of Veterinary Service
• /
• v.30 no.3
• /
• pp.415-419
• /
• 2007

This study was carried out to investigate the prevalence of Ascaris suum infection of slaughtered pigs in Chungju and Eumseong area from January to June in 2007. The percentage of pigs and farms detected milk spot, adult worm, and adult worm in detected milk spot were 4.2% and 23.8%, 0.2% and 9.3%, and 4.9% and 39%, respectively. The prevalence of A suum infection from April to June 2007 was lower than that of January to March 2007. There is not enough of difference in farms' infection rate based on their breeding type.

• Korean Journal of Veterinary Service
• /
• v.30 no.1
• /
• pp.33-42
• /
• 2007

Fowl cholera(FC), which has been classified as reportable animal disease in Korea, occurred in the backyard farm located in Chungju, Chungbuk province. The farm was not ordinary domestic poultry farm but backyard farm with main cultivation of fruits. The farmer reported unusual mortality of chickens which were grazed in his own fruit farm without any poultry house. There was a lots of opportunities to contact with wild animals including wild birds freely. Clinical signs observed in the chickens were torticolis, mucous excretion from mouth and greenish diarrhea. On the necropsy we found multifocal necrosis on the surface of liver, hemorrhages in the epicardium and ovary and mucopurulent exudates in the joint. The causative agents was isolated from the liver of chickens collected from the farms and identified as Pasteurella multocida using biochemical tests of bacteria. Also, the isolated bacteria were inoculated into specific pathogen free chickens to evaluate the pathogenicity. High mortality and similar pathological lesions compared to those of chickens died in the farm were observed. We report the first case of fowl cholera of the chickens in Korea and further studies are needed to evaluate the serotype, genotype and pathogenicity of isolated Pasteurella multocida.

• Korean Journal of Veterinary Service
• /
• v.26 no.2
• /
• pp.135-144
• /
• 2003

Fowl typhoid is a septicemic disease of turkeys and chickens. The antigen is Salmonella(S) gallinarum, which cross-reacts with S pullorum because of common antigen. The organism is maintained in the ovary of carrier birds and transmitted vertically in the york. It is also transmitted horizontally through feces and broken eggs. The symptoms are weakness, drowsiness, wing drooping, hyperexcitability, paresis and diarrhea. In the many cases, the birds are found dead in the morning before any symptoms have been noticed. this experiment was carried out to investigate the characteristics of S gallanarum and scrutinized about the control systems. 1. Fowl typhoid was came about in the winter than the other seasons. The average of mortality was 46.3%. And it was came about not only adult poultry but also chicks. 2. S gallinarum was isolated from liver and spleen in infected chickens. Total isolated strains were 60. 3. The organisms were all extinct at 60$^{\circ}C$, 30mins. 4. A survival rate was higher in underground water than a secondary distilled water. It was detected in underground water until 30 days. 5. When being exposed to the solar light, it became extinct almost within 24 hours. 6. It was survived in a refrigerator until 12 months. 7. It was extinct among 5 mins in 0.1% phenol and 2% formalin. 8. When the cultured organism fluid was inoculated in SD-rat abdominal cavity, rat died within 24 hours. 9. Pullorum-typhoid related program must disciplines in order to destroy the fowl typhoid, and breeding system must be converted to cage system.

• Korean Journal of Veterinary Service
• /
• v.31 no.1
• /
• pp.37-42
• /
• 2008

Riemerellosis, contagious disease of domestic ducks in Korea, occurred in December of 2007 in a farm located in Eumsung, Chungbuk province. The affected ducks were 22 days old and the owner reported that almost one hundred of ducks had died everyday for a few days after infection. Clinical signs were listlessness, ocular and nasal discharge, greenish diarrhea, ataxia, tremor of head and legs, and coma. On necropsy we found fibrinous exudate, which involved serosal surfaces in general, but most evidences were in the pericardial cavity and over the surface of the liver. The causative agent was isolated from the liver of the affected ducks and identified as Riemerella anatipestifer using biochemical tests. Also, the isolate was susceptible to ampicillin, cephalothin, sulfamethazole/trimethoprim, Florfenicol among the 23 species antibiotics (AST Discs, OXOID) used in our laboratory. Further studies should be needed for the more effective control and better epidemiological information such as pathogenicity, serotype, genotype and treatment.

• Korean Journal of Veterinary Service
• /
• v.30 no.2
• /
• pp.287-289
• /
• 2007

Uremia was diagnosed in a slaughtered 20-month old bull. It had no special clinical signs, but many lesions associated with uremia were observed at postmortem inspection. It had a lot of ascites. Kidney, urinary bladder and ureter were enlarged, congested and hemorrhagic, and the incised section of those slightly smelled nasty. However, the precise cause of uremia in this case could not be completely identified.

• Journal of Animal Environmental Science
• /
• v.10 no.3
• /
• pp.175-182
• /
• 2004

A study was conducted to develop a management policy of animal waste in Northern Chungbuk province through investigating the status of animal waste management. In management of swine manure, rotary composting including a simple piling method has a portion of $64\%$ using as a liquefied fertilizer $18\%$, purification $9\%$ and ocean dumping $9\%$ respectively. Most of them use the animal waste as a fertilizer to the agricultural land. The exercise ground of dairy farms was bedded with $70\%$ of sawdust and $30\%$ of conventional soil ground besides the stall. They had a storage tank for the waste water from milking parlor. Korean beef cattle farms mostly run sawdust stall, which changed new one in a term of 6$\~$12 months. In case of layer, manure management was conducted in the order of simple piling method, rotary composting and ventilation into the piling mostly. Comparing the amount of excreted animal manure with that of possible spreading, the latter can be spread more than 2.9 times than the former in Northern Chungbuk province. The Northern Chungbuk province is an appropriate place to carry out an environmentally friendly animal production. An utilization model as a liquefied fertilizer should be developed for paddy field, upland field, orchard, and forage field to in-crease the value of animal waste effectively.

• Korean Journal of Veterinary Service
• /
• v.30 no.3
• /
• pp.473-480
• /
• 2007

The legal communicable diseases are classified two group, 62 diseases in the existing domestic animal Infectious disease prevention Act. There is problem that standards of administrative measure are unjustly suspected when infectious disease outbreaks between two groups, Therefore, A reclassification of many diseases should be diversified, the standards of administrative measure at the infectious diseases outbreak should be desired. Also, It suggest that central government should mandate local government to be able to assign legally designated disease about specific endemic diseases.

• Korean Journal of Veterinary Service
• /
• v.31 no.3
• /
• pp.425-431
• /
• 2008

A strategic national plan to control of zoonoses is currently somewhat insufficient. Government should extensively assign all case reports of zoonotic disease outbreaks and needs to control them in the context of other decrees. Additionally capacity of veterinarian needs to he increased to control zoonotic diseases efficiently. Namely, veterinarian is responsible for reporting to health authorities if any of zoonotic diseases are diagnosed. Furthermore, government should deploy the veterinarian's resources for prompt epidemiological investigation and for taking countermeasures against zoonotic diseases.

• Proceedings of the Korean Society of Environment and Ecology Conference
• /
• 2005.04a
• /
• pp.115-121
• /
• 2005