首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   123篇
  免费   0篇
农学   1篇
  14篇
综合类   2篇
水产渔业   24篇
畜牧兽医   68篇
植物保护   14篇
  2021年   5篇
  2020年   1篇
  2016年   4篇
  2015年   15篇
  2014年   9篇
  2013年   6篇
  2012年   4篇
  2011年   5篇
  2010年   1篇
  2009年   5篇
  2008年   6篇
  2007年   4篇
  2006年   3篇
  2005年   2篇
  2004年   4篇
  2003年   8篇
  2002年   18篇
  2001年   2篇
  2000年   4篇
  1998年   2篇
  1994年   1篇
  1987年   1篇
  1985年   1篇
  1983年   1篇
  1979年   1篇
  1967年   1篇
  1963年   1篇
  1958年   1篇
  1957年   1篇
  1956年   4篇
  1955年   1篇
  1954年   1篇
排序方式: 共有123条查询结果,搜索用时 15 毫秒
31.
32.
33.
34.
Leptospira, Giardia intestinalis and Toxoplasma gondii infections are reported in humans and animals worldwide, but molecular surveillance of these pathogens in Korean wildlife is still limited. Here, we examined the prevalence of these pathogens in environmental feces of Eurasian otters, leopard cats and raccoon dogs using nested PCR followed by DNA sequencing. G. intestinalis was detected in all of three animals, while T. gondii was detected only in leopard cats. Leptospira wolffii was detected in raccoon dog and Eurasian otter. Our results suggest that these animals can act as a reservoir of these zoonotic pathogens. Consistent monitoring of these pathogens in wildlife is needed to prevent from their infections in humans and livestock in Korea.  相似文献   
35.
36.
37.
38.
39.
40.
Abstract. A new virus, provisionally named Herpesvirus vitreum, was isolated from hyperplastic epidermal tissue from a walleye, Stizostedion vitreum vitreum (Mitchill), taken in Saskatchewan, Canada. The virus, which was isolated in the walleye ovarian (WO) cell line, was identified as a herpesvirus on the basis of size (190–230 nm), morphology and apparent pattern of replication. The virus, which passes polycarbonate membranes of 200 nm mean pore diameter, was ether-labile. Virus replicated in WC-1 cells at 4 and 15°C, but not at 20°C. Although walleye cell lines (WO, WC-1, We-2) were susceptible to infection at 15°C, non-period cell lines were refractory. Syncytial formation and lysis occurred in susceptible cell lines. Virus was quantified by plaque assay at 13 to 15°C for two weeks. Replication was inhibited by 10-3.0m phosphonoacetate and by 10-5.0m 5-bromodeoxyuridine (BUDR), but addition of excess thymidine reversed the inhibition by BUDR. Viral replication in WO cells, but not in WC-1 cells, was inhibited by the antiherpetic drug acyclovir (10-5.0m ). The relationship of the herpesvirus isolate and epithelial neoplasms was not determined.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号