全文获取类型
收费全文 | 67篇 |
免费 | 12篇 |
专业分类
农学 | 4篇 |
3篇 | |
综合类 | 22篇 |
农作物 | 4篇 |
畜牧兽医 | 42篇 |
植物保护 | 4篇 |
出版年
2018年 | 5篇 |
2017年 | 1篇 |
2016年 | 6篇 |
2015年 | 1篇 |
2014年 | 3篇 |
2013年 | 10篇 |
2011年 | 1篇 |
2010年 | 1篇 |
2009年 | 4篇 |
2005年 | 2篇 |
2003年 | 1篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 5篇 |
1999年 | 1篇 |
1998年 | 4篇 |
1997年 | 4篇 |
1996年 | 3篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 1篇 |
1990年 | 2篇 |
1972年 | 1篇 |
1946年 | 1篇 |
1945年 | 1篇 |
1939年 | 1篇 |
1933年 | 1篇 |
1930年 | 1篇 |
1920年 | 1篇 |
1909年 | 1篇 |
1905年 | 1篇 |
1904年 | 2篇 |
1897年 | 2篇 |
1896年 | 2篇 |
1893年 | 2篇 |
1892年 | 1篇 |
排序方式: 共有79条查询结果,搜索用时 15 毫秒
1.
2.
3.
RM Jerram CG Warman ESS Davies MC Robson AM Walker 《New Zealand veterinary journal》2013,61(4):197-201
CASE HISTORY A 3-year-old male Labrador retriever was presented with a history of dietary indiscretion followed by vomiting and abdominal pain. CLINICAL FINDINGS AND TREATMENT: Abdominal ultrasonography revealed the presence of a fluid-filled cystic structure in the region of the pancreas. Flocculent, dark fluid was drained from the cystic structure during exploratory celiotomy prior to resection of the lateral cystic wall. Omentum was sutured into the cystic cavity to provide drainage and enhance immune response. A jejunostomy feeding tube was placed. Post-surgical care consisted of antibiotic therapy. The dog was clinically normal at 1 and 7 months post-operatively and the pancreas appeared normal on final ultrasonographic examination. CLINICAL RELEVANCE: This case describes the use of omentum to provide physiological drainage of a pancreatic pseudocyst. This surgical technique may help clinicians manage patients with this condition in the future. 相似文献
4.
Reduction in the mRNA expression of sVEGFR1 and sVEGFR2 is associated with the selection of dominant follicle in cows
下载免费PDF全文
![点击此处可从《Reproduction in domestic animals》网站下载免费的PDF全文](/ch/ext_images/free.gif)
PV Ortega Serrano A Guzmán CG Hernández–Coronado H Castillo‐Juárez AM Rosales‐Torres 《Reproduction in domestic animals》2016,51(6):985-991
The vascular endothelial growth factor (VEGF) is essential for follicular development by promoting follicular angiogenesis, as well as for the proliferation and survival of granulosa cells. The biological effects of VEGF are regulated by two membrane receptors, VEGFR1 and VEGFR2, and two soluble receptors, sVEGFR1 and sVEGFR2, which play an antagonistic role. Thus, the objective of this study was to identify the mRNA expression pattern of total VEGF, VEGFR1, VEGFR2, sVEGFR1 and sVEGFR2 in bovine preselected follicles (PRF) and post‐selected follicles (POF). The mRNA expression of these five genes in both granulosa cells (GC) and theca cells (TC) was compared between follicles classified as PRF and POF based on their diameter and on their ratio of estradiol/progesterone (E2/P4). Results showed a lower expression of mRNA of sVEGFR1 and sVEGFR2 in POF than in PRF (p < .05). Regarding the mRNA expression of total VEGF, VEGFR1 and VEGFR2, there was no difference between POF and PRF follicles (p > .05). Our results showed that the mRNA expression of VEGFR2 and sVEGFR1 was more abundant than the expression of VEGFR1 and sVEGFR2, while GC was the main source of mRNA for total VEGF. On the other hand, TC was the follicular compartment where the receptors were most expressed. Our results suggest that non‐dominant follicles maintain a greater concentration of the mRNA expression of both membrane and soluble VEGF receptors. On the other hand, follicular dominance is related to a reduction in the mRNA expression of sVEGFR1 and sVEGFR2, which may favour VEGF binding with VEGFR2 and, hence, improve the follicular health and development. 相似文献
5.
Production and testing of plants regenerated from protoplasts of photoperiod sensitive genic male sterile rice (Oryza sativa L.) 总被引:1,自引:0,他引:1
Qingzhong Xue Kossi Edoh Hong Li Nengyi Zhang Juqiang Yan Susan McCouch Elizabeth D. Earle 《Euphytica》1999,105(3):167-172
Plants were regenerated from protoplasts isolated from embryonic suspension cultures of N5047S, a photoperiod sensitive genic
male sterile (PGMS) Japonica rice line. Flow cytometric analyses of nuclear DNA content identified some tetraploid regenerates
whose agronomic traits could be distinguished from diploid regenerates. Pollen and female fertility of diploid protoplast-derived
clones grown under different light and temperature conditions was compared. A promising PGMS protoplast clone, ZAU11S, was
developed from these clones. Its male sterility was confirmed as a photoperiod × temperature interaction type.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
6.
Seizures during medetomindine sedation and local anaesthesia in two dogs undergoing skin biopsy 总被引:1,自引:1,他引:0
Each of two dogs presented for multiple skin biopsies were sedated with intravenous medetomidine and lignocaine was injected subcutaneously to provide local anaesthesia for skin biopsy. One dog had a seizure during skin biopsy and again immediately following reversal of medetomidine with atipamezole. The other dog developed seizures 2 h following skin biopsy at which time the medetomidine was reversed with atipamezole. Both dogs were neurologically normal with no history of seizures prior to the procedure and remained neurologically normal for 14 weeks and 9 months, respectively, following the procedure. A drug interaction between the α2 -adrenergic agonist medetomidine and lignocaine is suspected and highlights the potential for seizures following the subcutaneous administration of relatively large doses of lignocaine under medetomidine sedation. 相似文献
7.
Blight LK Ainley DG Ackley SF Ballard G Ballerini T Brownell RL Cheng CH Chiantore M Costa D Coulter MC Dayton P Devries AL Dunbar R Earle S Eastman JT Emslie SD Evans CW Garrott RA Kim S Kooyman G Lescroël A Lizotte M Massaro M Olmastroni S Ponganis PJ Russell J Siniff DB Smith WO Stewart BS Stirling I Willis J Wilson P Woehler EJ 《Science (New York, N.Y.)》2010,330(6009):1316
8.
9.
10.
Earle C 《Science (New York, N.Y.)》1897,5(111):258-260