• 대한수의학회지
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• 제41권4호
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• pp.579-582
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• 2001

SHR 랫드 4-21 개월령 colony에서 혈청 및 조직학적으로 정기적인 health monitoring을 실시하던 중 ELISA test에서 21 개체 중 12 개체에서 Mycoplasma pulmonis에 대한 항체가 검출되었다. Mycoplasma 양성 개체군의 부검 소견에서 기관지, 세기관지 주변 림프절의 증식과 전형적인 폐 기관지의 병변 소견을 보였다. 혈청학적 검사와 조직학적 소견에서 SHR 랫드 군의 자연적인 Mycoplasm 감염 예로 진단되어 보고하는 바이다.

• 한국동물위생학회지
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• 제34권1호
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• pp.19-29
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• 2011

Prevalence of major legal communicable diseases in chickens and ducks, which had occurred in Jeonbuk province from year 2004 to 2008. Total 283 farms 1,419,244 chickens and ducks have been affected by avian diseases. Specifically, fowl typhoid (FT) occurred in 92 farms 416,600 chickens, Marek's disease (MD) in 45 farms 145,563, duck virus hepatitis (DVH) in 31 farms 199,200, infectious bursal disease (IBD) in 27 farms 113,220, infectious bronchitis (IB) in 27 farms 280,300, low pathogenic avian influenza (LPAI) in 26 farms 78,495, avian mycoplasmosis in 16 farms 103,774, Newcastle disease (ND) occurred in 11 farms 61,052, avian encephalomyelitis (AE) in 7 farms 21,000, Pullorum disease (PD) occurred in 1 farm 40. According to total analysis about major legal communicable diseases, 1 species of first-class legal communicable diseases have occurred, 3 species of second-class and 6 species of third-class all adding up to 10 species. In the first-class diseases, Newcastle disease have occurred. Pullorum and fowl typhoid, duck virus hepatitis in the second-class have occurred and as third-class diseases, Marek's disease, Infectious bursal disease, Infectious bronchitis, avian mycoplasmosis, avian encephalomyelitis, low pathogenic avian influenza have occurred.

• 대한수의학회지
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• 제10권2호
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• pp.73-80
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• 1970

This report summarized the results of the post-mortem diagnosis oil the 1,785 fowl live and dead during the calender year of 1966 to 1968. The disease incidences in order were; leucosis complex(21.9%) newcastle disease (10.4%), coccidiosis (6.6%) and mismanagement(3.9%). There were also a number of other diseases common to tb,e poultry flocks such as avian mycoplasmosis, pullorum disease and, nutritional disorder etc.

• Parasites, Hosts and Diseases
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• 제60권2호
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• pp.127-131
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• 2022

Feline hemotropic mycoplasmosis (hemoplasmosis) is an infection of the red blood cells caused by the Mycoplasma haemofelis (Mhf), Candidatus Mycoplasma haemominutum (CMhm), and Candidatus Mycoplasma turicensis (CMt). The existence of Mhf, CMhm, and CMt has been demonstrated in feral cats in Korea using molecular methods, but no clinical cases have yet been reported. This study reports 2 clinical cases of hemotropic mycoplasmosis caused by CMhm and CMt in 2 anemic cats. The first case was a client-owned intact female domestic shorthair cat that presented with fever, pale mucous membranes, and normocytic normochromic non-regenerative anemia. Prior to referral, an immunosuppressive prednisolone dose was administered at the local veterinary clinic for 1 month. The cat was diagnosed with high-grade alimentary lymphoma. Organisms were found on the surface of the red blood cells on blood smear examination. The second case was of a rescued cat that presented with dehydration and fever. The cat had normocytic normochromic non-regenerative anemia. Necropsy revealed concurrent feline infectious peritonitis. Polymerase chain reaction assay targeting 16S rRNA revealed CMhm infection in case 1 and dual infection of CMhm and CMt in case 2. Normocytic normochromic non-regenerative anemia was observed in both cats before and during the management of the systemic inflammation. This is the first clinical case report in Korea to demonstrate CMhm and CMt infections in symptomatic cats.

• Asian-Australasian Journal of Animal Sciences
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• 제6권2호
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• pp.249-251
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• 1993

A total of 4,800 chicken sera from Broiler, Layer, and Local chicken were tested to detect the presence of Mycoplasma gallisepticum (Mg) antibody by Rapid Serum Plate and Tube Agglutination Test. Positive cases recorded in this study were 945 (27%) in Broiler, and 436 (36.7%) in layer chicken sera and no. M. gallisepticum antibody could be seen in the local chicken sera. It is evident from the present findings that Mycoplasma gallisepticum infection has been prevailing in this country in improve breeds of chickens.

• 한국동물위생학회지
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• 제38권2호
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• pp.101-106
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• 2015

Murine mycoplasmosis, caused by Mycoplasma (M.) pulmonis, is a prominent disease in rodent animals. The aim of this study was to develop a sensitive and specific PCR assay to detect M. pulmonis in animals and to assess the suitability of this assay for the detection of mycoplasmal infection in rats experimentally infected with M. pulmonis. A new PCR assay using the M. pulmonis-specific primer pairs MPul-F and MPul-R was developed. The primers and probe for the assay were designed from regions in the 16S rRNA gene that are unique to M. pulmonis. The novel PCR assay was very specific and sensitive for M. pulmonis, detecting the equivalent of 5 pg of target template DNA. It detected only M. pulmonis and no other Mycoplasma species or other bacterial species. The newly developed PCR assay also effectively detected M. pulmonis infection in rats. These results suggest that this PCR assay using M. pulmonis-specific primer pairs of MPul-F and MPul-R will be useful and effective for monitoring M. pulmonis infection in animals.

• 대한수의학회지
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• 제14권2호
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• pp.237-241
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• 1974

A number of chemotherapeutic agents, namely antibiotics, sulfonamides and nitrofuran derivatives have been used, as a fred additive, for the purposes of growth improvement of chicken, increase of feed efficiency, decrease of animal mortality, and disease prevention. In these experiments, furamizole which is one of nitrofuran derivatives and feed additive was test, in field, its antibacterial activity against Mycoplasma gallisepticum causing air sac disease, its effect on pullorum disease control, its effect on the lowering the mortality of chicken and finally the increase of feed efficiency. Throughout the studies, furamizole, in concentration of 0.025% in feed fed to baby chicken continuously resulted as following: 1. Tested chicken showed no avian mycoplasma infection compared to 3.7% outbreak in control chicken. 2. Tested chicken showed a low degree of outbreak of pullorum disease. However, its outbreak was much more surpresed compared to that of control chicken. 3. Total mortality rate of 5.5% and 30.8% were obtained in test and control chicken respectively. 4. Feed efficiency were 2.83 and 2.97 in test and control chicken respectively.

• 한국가금학회지
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• 제46권4호
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• pp.249-253
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• 2019

닭 마이코플라즈마병은 전세계적으로 양계산업에 문제시 되고 있는 난계대 질병으로 병아리 품질 및 사육성적에 영향을 미친다고 알려져 있다. 본 연구는 닭 마이코플라즈마병에 대한 백신 접종을 실시하지 않은 계열화 회사의 육용 종계군을 대상으로 정기 채혈을 통해 혈청검사를 실시한 후 감염율을 확인하였고, 조사계군에서 생산된 육계 병아리에 대한 사육성적을 확인하고자 하였다. 육용종계 닭 마이코플라즈마 감염율과 그에 따른 후대병아리의 사육성적을 연도별로 확인한 결과, 종계군의 감염율이 낮아짐에 육계의 사육성적이 높아진다는 상관관계를 확인하였다. 이러한 결과를 토대로 비추어 보았을 때, 닭 마이코플라즈마병의 감염 유무는 생산된 초생추의 품질과 사육농장 성적 영향에 미치는 여러 요소들 중 하나라고 판단할 수 있다.

• 한국가금학회지
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• 제7권1호
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• pp.53-64
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• 1980

A total of 1503 specimens were submitted to the Poultry Disease Diagnostic Service Laboratory during the year 1966 and 1978. The most frequently diagnosed diseases in order of prevalence were avian mycoplasmosis, staphylococcosis, colibacillosis, salmonellosis and pullorum disease, the percentages of the conditions being 24.6%, 20.0%, 18.0%, 12.6% and 6.4%, respectively, The drug resistance of pathogenic mirnoorganisms isolated during the year 1978 from chicken with colicabacillosis, staphylococcosis or salmonellosis were investigated by the use of disc diffusion technique, the results being as follow. 1) Drug resistance of 63 strains of Escherichia coli More than 95% of the strains tested were sensitive to colistin and gentamicin. The percentages of strains sensitive to kanamycin, chloramphenicol, ampicillin and nitrofurantoin were 66.7%, 60.3%, 60.3% and 47.6%, respectively. Majority of the strains were highly resistant to streptomycin and tetracyline. All the strains were resisistant to bacitracin lincomycin, oleandomycin, penicillin and erythromycin. All the strains tested were resistant to more than two among 10 drugs in common use such as penicillin, erythromycin, streptomycin, tetracycline, neomycin, chloramphenicol, kanamycin, ampicillin and gentamicin, and 27 different resistance patterns were noted. The most frequent multiple resistance pattern was PC, EM, SM and TC (11.1%). 2) Drug resistance of 48 strains of Salmonella More than 95% of the strains tested were sensitive to colistin, gentamicin ana ampicillin. The percentages of st rains sensitive to kanamycin, tetracycline, neomycin and nitrofurantoin were 81,3%, 79%, 72.9%, and 68.0% respectively. None of them was sensitive to streptomycin, oleandomycin, erythromycin, lincomycin and bacitracin. All the strains were resistant to more than one among 7 drugs in common use such as streptomycin, erythromycin, neomycin, tetracycline, kanamycin, ampicillin and gentamicin. The most frequent resistance pattern was SM and EM(66.7%). 3) Drug resistance of 54 strains of Staphylococci All the strains tested were sensitive to gentmaicin, kanamycin and cephalothin. Majority of them were highly sensitive to bacitracin, methicillin, nitrofurantoin and chloramphenicol. The Percentages of strains sensitive to streptomycin, ampicillin, lincomycin and tetracycline were 66.7%, 55.6%, 44.4% and 27.8%, respectively. Among them, 51 strains were resistant to more than one among 11 drugs in common use such as tetracycline, lincomycin, ampicillin, penicillin, streptomycin, erythromycin, neomycin, oleandomycin, chloramphenicol, methicillin and bacitracin, and thirty one different resistance patterns were noted.

• 한국가금학회지
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• 제37권3호
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• pp.237-245
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• 2010

본 조사 연구는 종란을 생산하는 원종계, 종계, 백세미씨알 생산 농장을 대상으로 수직 감염(난계대전파)되는 전염성 질병인 추백리/가금티푸스, 닭마이코플라즈마증(MG, MS), 전염성 빈혈증, 조류아데노바이러스 감염증에 대한 항원 및 항체 검사를 실시하였다. 조사 기간은 2009년 8월부터 12월까지 5개월간 원종계 45계군, 종계 1,018계군, 백세미씨 알 생산 54계군에 대한 성적이다. 추백리/가금티푸스 항원검사에서는 모든 계군이 음성으로 확인되었으나, 항체 검사결과 종계 3.2%, 백세미씨알 생산계군 3.0%의 항체 양성율이 관찰되었다. 계종별 가금티푸스의 발생률은 종계군의 항원 검사 결과와 상반되어 육계 44.3.7%, 백세미 26.2%, 산란계 15.7%, 토종닭 12.6%, 육용 종계 1.08%였다. MG 항체 검사 결과, 원종계 71.1%, 종계 및 백세미씨알 생산계군 각 88.7% 항체 양성율이 확인되었으며, MS 항체 검사 결과도 비슷한 수준으로 나타났다. 닭 전염성 빈혈 바이러스 검사 결과, 원종계 42.2%, 종계 18.0%가 바이러스를 갖고 있는 것으로 나타났으며, 항체 양성율도 86% 이상이었다. 이와 함께 조류 아데노바이러스 항원 검사 결과에서는 원종계 4.4%, 종계 2.7%, 백세미씨알 생산계군 9.35%가 바이러스를 보유하고 있는 것으로 조사되었다. 결론적으로 국내 종계군은 닭 마이코플라즈마증과 닭 전염성 빈혈에 상당히 높은 수준으로 감염되어 있는 것으로 판명되어 질병별 적절한 예방책이 필요한 것으로 나타났다.