全文获取类型
| 收费全文 | 36篇 |
| 免费 | 19篇 |
专业分类
| 林业 | 1篇 |
| 3篇 | |
| 综合类 | 10篇 |
| 水产渔业 | 1篇 |
| 畜牧兽医 | 36篇 |
| 园艺 | 4篇 |
出版年
| 2021年 | 1篇 |
| 2020年 | 1篇 |
| 2019年 | 2篇 |
| 2018年 | 3篇 |
| 2017年 | 3篇 |
| 2015年 | 1篇 |
| 2013年 | 3篇 |
| 2012年 | 1篇 |
| 2011年 | 3篇 |
| 2010年 | 1篇 |
| 2009年 | 1篇 |
| 2008年 | 1篇 |
| 2007年 | 4篇 |
| 2006年 | 1篇 |
| 2005年 | 1篇 |
| 2002年 | 2篇 |
| 2001年 | 1篇 |
| 2000年 | 1篇 |
| 1999年 | 2篇 |
| 1998年 | 1篇 |
| 1992年 | 2篇 |
| 1990年 | 3篇 |
| 1989年 | 2篇 |
| 1987年 | 2篇 |
| 1985年 | 1篇 |
| 1984年 | 2篇 |
| 1983年 | 1篇 |
| 1982年 | 1篇 |
| 1981年 | 1篇 |
| 1979年 | 1篇 |
| 1978年 | 1篇 |
| 1975年 | 1篇 |
| 1973年 | 1篇 |
| 1968年 | 1篇 |
| 1948年 | 1篇 |
排序方式： 共有55条查询结果，搜索用时 375 毫秒
1.
2.
3.
4.
Acupuncture and traditional Chinese veterinary medicine for treatment of a mare with rectal paralysis 
下载免费PDF全文
下载免费PDF全文 M. M. Sleeper K. Fishman R. J. MacKay M. Brown A. G. Bauck H. Xie 《Equine Veterinary Education》2018,30(9):460-463
An 8‐year‐old Appaloosa mare with rectal paralysis due to a cosmetic ethanol ‘tail block’ was treated with traditional Chinese veterinary medicine treatments including acupuncture and herbal medicine. Her rectal and tail tone gradually improved after the treatment. At 4 months after initial presentation, the mare was able to produce faecal piles on a regular basis, and manual evacuations were no longer needed. Significant improvement was within 30 days of beginning treatment. At 8 months, the owner indicated that the mare had normal defaecation, was able to swish the tail from side to side and lift the tail to urinate, and had no evidence of straining to defaecate or colic. 相似文献
5.
Context
Spatial heterogeneity has myriad influences on ecosystem processes, ecosystem services, and thus the sustainability of urban areas. It acts as a medium for urban design, planning, and management to determine how processes affecting sustainability can operate and interact. Therefore, how spatial heterogeneity is conceptualized and measured in cities is crucial for enhancing sustainability.Objectives
We show that the two most commonly used, but contrasting paradigms of urban ecology, ecology IN versus ecology OF the city, determine how spatial heterogeneity is thought of and used in different ways. We identify the key implications of these theoretical contrasts for the practice and assessment of sustainability in urban areas.Methods
We review and compare the different ways in which ecology IN versus ecology OF the city affect how to conceptualize, model and map urban spatial heterogeneity. We present a new framework to guide the comparison of spatial heterogeneity under the two paradigms.Results and conclusion
The integrative nature of this new framework becomes apparent under the ecology OF the city paradigm, because it recognizes the hybrid social and bioecological nature of heterogeneity in urban ecosystems. The hybrid approach to patchiness resonates with the three pillars of sustainability—environment, society, and economy. We exemplify how the more comprehensive and integrated framework of spatial heterogeneity under the ecology OF the city paradigm (1) supports more effective measurement and integration of the three components of sustainability, (2) improves management of heterogeneous urban ecosystems, and (3) satisfies calls for improved ecological tools to support urban ecosystem design.6.
Kaur S Greaves P Cooke DN Edwards R Steward WP Gescher AJ Marczylo TH 《Journal of agricultural and food chemistry》2007,55(9):3378-3385
Tea consumption is associated with a reduced risk of mammary cancer as reflected by epidemiological studies and experiments in carcinogen-induced rodent models of mammary carcinogenesis. We tested the hypothesis that green tea catechins (GTC) or theaflavins from black tea (BTT) interfere with mammary carcinogenesis in C3(1) SV40 T,t antigen transgenic multiple mammary adenocarcinoma (TAg) mice and that GTC/BTT affect tumor survival or oxidation status. TAg mice received GTC/BTT (0.05%) in drinking water for their lifetime. As compared to control mice, they survived longer and had smaller tumors. On microscopic inspection, the size of the largest tumor per mouse was decreased by 40-42% (p<0.01). GTC (0.01%) and BTT (0.05%) increased levels of cleaved caspase 3 in tumor tissue by 67 and 38%, respectively (p<0.05), intimating increased apoptosis. Tumor levels of the malondialdehyde-DNA adduct M1dG in mice receiving GTC or BTT (0.05%) were reduced by 78 (p<0.001) or 63% (p<0.05), respectively, as compared to controls. The results render the exploration of the breast cancer chemopreventive properties of tea preparations in humans worthwhile. 相似文献
7.
Katy Webb Colin Barker Tihana Harrison Zoe Heather Karen F. Steward Carl Robinson J. Richard Newton Andrew S. Waller 《Veterinary journal (London, England : 1997)》2013,195(3):300-304
Genome sequencing data for Streptococcus equi subspecies equi and zooepidemicus were used to develop a novel diagnostic triplex quantitative PCR (qPCR) assay targeting two genes specific to S. equi (eqbE and SEQ2190) and a unique 100 base pair control DNA sequence (SZIC) inserted into the SZO07770 pseudogene of S. zooepidemicus strain H70. This triplex strangles qPCR assay can provide results within 2 h of sample receipt, has an overall sensitivity of 93.9% and specificity of 96.6% relative to the eqbE singlex assay and detects S. equi at levels below the threshold of the culture assay, even in the presence of contaminating bacteria. 相似文献
8.
Vegetation structure,composition and effect of pine plantation harvesting on riparian buffers in New Zealand 总被引：1，自引：0，他引：1
The composition and structure of vegetation within riparian buffers prior to, and immediately post-harvesting in a managed radiata pine (Pinus radiata D.Don) forest is described and compared with riparian buffers in residual adjoining native forest on the Coromandel Peninsula, New Zealand. One hundred and twenty-one species (71% native) representing life forms from grasses to trees were recorded. The highest species richness, including both native and adventive (non-native) species, was found in riparian buffers in the post-harvest and native reference sites which had 18–25 species per site. Riparian buffers in mature pine plantations contained a mix of native species that was generally similar to, and not significantly reduced in species richness, from the reference native forest. Native species comprised 82–92% of the total cover in mature pre-harvest sites (irrespective of riparian width), and 99.8% in native reference sites. Compared with native forest the principal difference was a reduction of total cover in the upper tiers (5–12 m), and some increase in cover in the lower tiers. Adventive species in post-harvest sites comprised 16–67% of the total cover and were most frequently found in riparian areas highly disturbed by recent harvesting of the pines, particularly where riparian buffers were narrow or absent. Invasion by light-demanding adventives is expected to be temporary and most species are likely to be shaded out as the new rotation of pine trees develops. Radiata pine plantations in Whangapoua Forest can provide suitable conditions for the development of riparian buffer zones that will become dominated by native species, similar in richness and structure to neighbouring native forest. 相似文献
9.
10.
Decreased Clinical Severity of Strangles in Weanlings Associated with Restricted Seroconversion to Optimized Streptococcus equi ssp equi Assays 下载免费PDF全文
下载免费PDF全文