Joh, Seong-joon
(Avian Disease Division, National Veterinary Research and Quarantine Service, MAF)
,
Kim, Min-chul
(Avian Disease Division, National Veterinary Research and Quarantine Service, MAF)
,
Kwon, Yong-kuk
(Avian Disease Division, National Veterinary Research and Quarantine Service, MAF)
,
Kim, Jae-hong
(Avian Disease Division, National Veterinary Research and Quarantine Service, MAF)
Pseudomonas aerusinosa infection was diagnosed in broiler chicks, and was submitted to the National Veterinary Research and Quarantine Service in Korea. The total mortality rate was about 1,500 birds out of 22,000 broilers. Clinically, affected birds showed clinical signs including depression and an...
Pseudomonas aerusinosa infection was diagnosed in broiler chicks, and was submitted to the National Veterinary Research and Quarantine Service in Korea. The total mortality rate was about 1,500 birds out of 22,000 broilers. Clinically, affected birds showed clinical signs including depression and anorexia with lameness and trembling of the leg. At necropsy, the dead broilers appeared to have omphalitis, yolk sac infection, fibrinous epicarditis, and fibrinous exudates in liver with swollen hock joint. Microscopically, there were multiple necrotic foci in the liver, fibrinous exudates in the heart, and infiltration of heterophils into the joint spaces of the hock joint. Pseudomonas aerusinosa was isolated from the heart, liver and hock joint, and the isolate was named P-200. In effort to estimate the virulence of P-200, 1-day-old chicks were challenged intramuscularly and intrayolksacally with the isolate. On the basis of mortality rate, the isolate P-200 was found to be highly virulent. This is the first report of an occurrence of Pseudomonas aerusinosa infection in broilers in Korea.
Pseudomonas aerusinosa infection was diagnosed in broiler chicks, and was submitted to the National Veterinary Research and Quarantine Service in Korea. The total mortality rate was about 1,500 birds out of 22,000 broilers. Clinically, affected birds showed clinical signs including depression and anorexia with lameness and trembling of the leg. At necropsy, the dead broilers appeared to have omphalitis, yolk sac infection, fibrinous epicarditis, and fibrinous exudates in liver with swollen hock joint. Microscopically, there were multiple necrotic foci in the liver, fibrinous exudates in the heart, and infiltration of heterophils into the joint spaces of the hock joint. Pseudomonas aerusinosa was isolated from the heart, liver and hock joint, and the isolate was named P-200. In effort to estimate the virulence of P-200, 1-day-old chicks were challenged intramuscularly and intrayolksacally with the isolate. On the basis of mortality rate, the isolate P-200 was found to be highly virulent. This is the first report of an occurrence of Pseudomonas aerusinosa infection in broilers in Korea.
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제안 방법
0x103 CFU/ml were used for broilers challenge (Table1). Two test groups and one-control group, which consisted of 40 broilers of each, were used for the virulence test. All broilers were challenged through intramuscular (IM) or yolk sac route (IY) with 0.
대상 데이터
On the June 16th, 2003, a disease characterized by depression, ruffled feathers, lameness and dehydration occurred in a broiler farm, which consist of 22, 000 birds and located in middle part of Korea, Chungbuk provinces. Ten 8-day-old broilers were submitted to the Avian Disease Division, National Veterinary Research and Quarantine service, and were diagnosed as P aerusinosa infection.
후속연구
On the basis of the characteristic clinical signs in the field, the pathologic findings, and the identity of the isolates, the disease that occurred in the broilers was finally diagnosed as P aerusinosa infection and was confirmed as the first report in broilers in Korea. In order to control the disease, further studies will be needed to be conducted detect and monitor the Pseudomonas infection outbreak in broilers.
참고문헌 (7)
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Barnes HJ. Miscellaneous Bacterial Diseases. In: Diseases of Poultry. 11th ed. pp. 852-854, Iowa State University Press, Ames, 2003
Carter GR. Essentials of Veterinary Bacteriology and Mycology. 1st ed. pp. 210-212, Michigan State University Press, East Lansing, 1982
Devriese LA, Viaene NJ, Medts GDE. Pseudomonas aerusinosa infection on a broiler farm. Avian Pathol 1975, 4, 233-237
Joklik WK, Willett HP, Armos DB, Wilfert CM. Zinsser Microbiology. 19th ed. pp. 487-492. Appleton-Century-Crofts, New York, 1988
Harry EG. The effect on embryonic and chick mortality of yolk contamination with bacteria from the hen. Vet Rec 1957, 69, 1433-1439
Walker SE, Sander JE, Cline JL, Helton JS. Characterization of Pseudomonas aerusinosa isolates associated with mortality in broiler chicks. Avian Dis 2002, 46, 1045-1052
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