全文获取类型
| 收费全文 | 49篇 |
| 免费 | 6篇 |
专业分类
| 基础科学 | 1篇 |
| 2篇 | |
| 综合类 | 13篇 |
| 农作物 | 2篇 |
| 水产渔业 | 3篇 |
| 畜牧兽医 | 32篇 |
| 园艺 | 2篇 |
出版年
| 2020年 | 1篇 |
| 2018年 | 3篇 |
| 2017年 | 2篇 |
| 2015年 | 2篇 |
| 2010年 | 1篇 |
| 2009年 | 1篇 |
| 2008年 | 4篇 |
| 2006年 | 1篇 |
| 2004年 | 1篇 |
| 2003年 | 1篇 |
| 2002年 | 2篇 |
| 2001年 | 1篇 |
| 2000年 | 1篇 |
| 1999年 | 1篇 |
| 1998年 | 1篇 |
| 1997年 | 1篇 |
| 1996年 | 1篇 |
| 1994年 | 2篇 |
| 1993年 | 4篇 |
| 1992年 | 5篇 |
| 1991年 | 4篇 |
| 1990年 | 1篇 |
| 1989年 | 1篇 |
| 1986年 | 1篇 |
| 1985年 | 2篇 |
| 1982年 | 1篇 |
| 1977年 | 1篇 |
| 1974年 | 1篇 |
| 1971年 | 1篇 |
| 1970年 | 1篇 |
| 1957年 | 1篇 |
| 1944年 | 1篇 |
| 1892年 | 1篇 |
| 1889年 | 2篇 |
排序方式： 共有55条查询结果，搜索用时 15 毫秒
41.
42.
43.
44.
Survey of predation by domestic cats 总被引：2，自引：0，他引：2
ID ROBERTSON 《Australian veterinary journal》1998,76(8):551-554
Objectives To calculate the proportion of house cats which were observed by their owners to have caught prey and to describe the characteristics of these cats.
Design and procedure A telephone questionnaire was administered to a randomly selected population of 458 cat owners in metropolitan Perth. Specific questions were asked about demographic characteristics, habits and diets of the cats, and whether the owners had observed their cats catch prey in the 12 month period preceding the survey.
Results The owners of 36% of 644 cats had observed their cats with prey in the 12 month period preceding the survey. Cats which spent more time outside, were neutered, cross-bred, originated from households with only one or two cats or were not fed meat were significantly more likely to be observed to predate. The body condition and diet (other than feeding meat) of cats did not influence the reported frequency of predation.
Conclusion Although cats are only one factor involved in the reduction in the numbers and diversity of Australian wildlife, restriction of the outside activities of cats is likely to diminish predation, particularly in areas close to native vegetation. 相似文献
Design and procedure A telephone questionnaire was administered to a randomly selected population of 458 cat owners in metropolitan Perth. Specific questions were asked about demographic characteristics, habits and diets of the cats, and whether the owners had observed their cats catch prey in the 12 month period preceding the survey.
Results The owners of 36% of 644 cats had observed their cats with prey in the 12 month period preceding the survey. Cats which spent more time outside, were neutered, cross-bred, originated from households with only one or two cats or were not fed meat were significantly more likely to be observed to predate. The body condition and diet (other than feeding meat) of cats did not influence the reported frequency of predation.
Conclusion Although cats are only one factor involved in the reduction in the numbers and diversity of Australian wildlife, restriction of the outside activities of cats is likely to diminish predation, particularly in areas close to native vegetation. 相似文献
45.
46.
47.
48.
49.
MM FEIZABADI ID ROBERTSON A HOPE DV COUSINS DJ HAMPSON 《Australian veterinary journal》1997,75(12):887-889
Objectives To examine strain variation amongst Australian isolates of Mycobacterium paratuberculosis .
Design Pulsed field gel electrophoresis was optimised for differentiation of M paratuberculosis strains, and this typing technique was then applied to a collection of Australian isolates.
Procedure DNAs from 35 Australian isolates of M para-tuberculosis and a UK reference strain were digested with one or other of three restriction endonucleases. The banding patterns obtained after pulsed field gel electrophoresis of the DNA fragments were compared.
Results The Australian isolates were divided into two groups on the basis of their DNA banding pattern. Both were different from the UK reference strain. Seven isolates from cattle in Victoria and the Northern Territory had the same pattern as five isolates from alpacas in Victoria and Western Australia. Another 20 isolates from cattle in Victoria, Western Australia and the Northern Territory had the same pattern as isolates from two sheep and a goat in New South Wales.
Conclusion Pulsed field gel electrophoresis was a useful tool for strain typing of M paratuberculosis , and could be used to study the transmission of strains in Australia. 相似文献
Design Pulsed field gel electrophoresis was optimised for differentiation of M paratuberculosis strains, and this typing technique was then applied to a collection of Australian isolates.
Procedure DNAs from 35 Australian isolates of M para-tuberculosis and a UK reference strain were digested with one or other of three restriction endonucleases. The banding patterns obtained after pulsed field gel electrophoresis of the DNA fragments were compared.
Results The Australian isolates were divided into two groups on the basis of their DNA banding pattern. Both were different from the UK reference strain. Seven isolates from cattle in Victoria and the Northern Territory had the same pattern as five isolates from alpacas in Victoria and Western Australia. Another 20 isolates from cattle in Victoria, Western Australia and the Northern Territory had the same pattern as isolates from two sheep and a goat in New South Wales.
Conclusion Pulsed field gel electrophoresis was a useful tool for strain typing of M paratuberculosis , and could be used to study the transmission of strains in Australia. 相似文献
50.