http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 안식욱 ( Shin Uk An ) (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
충남 서부지역 돈군에서 분리된 Bordetella bronchiseptica의 성상에 대한 연구
박세종 ( Se Jong Park ),안식욱 ( Shin Uk An ),신인환 ( In Hwan Shin ),정태수 ( Tae Su Chung ),전무형 ( Moo Hyung Jun ) 한국가축위생학회 1995 韓國家畜衛生學會誌 Vol.18 No.2
During 2 years from Octorber 1992 to April 1994, prevalence of general respiratory diseases and atrophic rhinitis in the pig herds located in the Western Chungnam was investigated, and isolation of B. bronchiseptica was attempted for the pigs manifested with the clinical signs of atrophic rhinitis(AR). The isolates were characterized and identified in aspects of biochemical properties, antigenicity, drug sensitivity and pathogenicity. The results obtained through the experiments are summarized as follows; 1. During 2 years of investigation, the overall prevalence of the general respiratory diseases in the pig herds in Western Chungnam was 35.3%, consisting of 35.1% in the pig farms and 38.8% in a slaughter house. The prevalence by age groups accounts for 9.2% in adults, 44.7% in rearings and 25.3% in sucklings. By farm size, The highest prevalence of 56.5% was observed in the smallest farm with 1 to 200 heads. 2. The prevalence of clinical cases of artrophic rhinitis was recorded by 12.7% in the group that is the sows and piglets vaccinated, 28.9% in the group that is the sows only vaccinated and 39.8% in the group of the non-vaccinated groups. In the slaughter house, 53(24.8%) of 214 pigs examined exhibit the AR lesions. 3. A total of 189 strains of B. bronchiseptica were isolated from the pig herds. Isolation rates were 12.6% in the group that is the sows and piglets vaccinated, 34.1% in the group that is the sows only vaccinated and 45.7% in the group of the non-vaccinated groups. Isolation rate in the specimen from the slaughter house was 93(43.5%) of 214 pigs examined. Of the AR-non-vaccinated group, the piglets aged between 61 to 90 days revealed the highest isolation rate of 58.5%. 4. The titers of antibody against B. bronchiseptica were measured by tube agglutination test. The group that is the sow and piglet-vaccinated showed the highest titer of 640-2,560 in sow and 640->5,120 in piglet. The group that is the SOWS only-vaccinated revealed 640-2,560 in sows and 640-1,280 in piglets. Both of the vaccinated groups showed 100% positive reaction. The group of the non-vaccinated showed relatively lower titer of 0-1,280 in both of sows and piglets. The positive rate of the sera obtained from the slaughter house was 53.3% with the antibody titer of 0-1,280. 5. Biochemical and serological properities of 189 isolates were very similar to those of the reference B. bronchiseptical phase I type, indicating that most of isolates are B. bronchiseptica phase I type. 6. In antimicrobial drug susceptibility, 87.3% of 189 isolates was susceptible to chloramphenicol, 79.9%, to amikacin, 64.6%, to cephalothin and less than 35.4% to others. 7. In agar-gel immunodiffusion and SDS-PAGE analysis, the isolates presented the identical antigenicity and protein profiles to the reference standard strains. 8. The whole cells and bacterial filtrates of the isolates were inoculated to guinea pigs and mice. The isolates showed the high pathogenicity and dermonecrotoxiciy.
ScienceON
KISS연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
