全文获取类型
| 收费全文 | 93篇 |
| 免费 | 0篇 |
专业分类
| 林业 | 1篇 |
| 农学 | 2篇 |
| 2篇 | |
| 综合类 | 6篇 |
| 农作物 | 2篇 |
| 水产渔业 | 9篇 |
| 畜牧兽医 | 66篇 |
| 植物保护 | 5篇 |
出版年
| 2012年 | 1篇 |
| 2011年 | 4篇 |
| 2010年 | 5篇 |
| 2009年 | 3篇 |
| 2008年 | 1篇 |
| 2007年 | 3篇 |
| 2006年 | 6篇 |
| 2005年 | 2篇 |
| 2001年 | 1篇 |
| 1998年 | 3篇 |
| 1997年 | 4篇 |
| 1996年 | 8篇 |
| 1995年 | 3篇 |
| 1994年 | 3篇 |
| 1993年 | 1篇 |
| 1992年 | 4篇 |
| 1991年 | 2篇 |
| 1990年 | 1篇 |
| 1989年 | 2篇 |
| 1987年 | 2篇 |
| 1986年 | 2篇 |
| 1985年 | 1篇 |
| 1984年 | 2篇 |
| 1981年 | 1篇 |
| 1974年 | 1篇 |
| 1971年 | 1篇 |
| 1963年 | 1篇 |
| 1959年 | 1篇 |
| 1958年 | 4篇 |
| 1957年 | 4篇 |
| 1956年 | 5篇 |
| 1955年 | 2篇 |
| 1954年 | 5篇 |
| 1953年 | 3篇 |
| 1951年 | 1篇 |
排序方式： 共有93条查询结果，搜索用时 15 毫秒
31.
Biological control of soil-borne pathogens has been the aim of the Biological Control Laboratory in Hódmezövásárhely since 1982. In Hungarian glasshouses (this means areas both under glass and plastic foil cover), the growing medium is still the natural soil or mixtures based on soil. This is the reason why soil-borne pathogens, such as species of Fusarium, Sclerotinia, Pythium, Botrytis, Rhizoctonia and Alternaria, cause increasing problems, especially at sites where there has been intensive continuous cropping for many years. Soil steaming is very expensive, while methyl bromide and other soil disinfectants are harmful for the environment and especially for the soil microflora. All this favours the introduction of biological control against soil-borne plant diseases. After laboratory tests, experiments have been carried out over a 9-year period, with good results, on several Trichoderma species and strains in relation to practically all glasshouse crops (capsicum, lettuce, tomato, ornamentals, etc.) and in some field crops also. Since 1986, experiments have been done with Finnish-originated strains of Streptomyces griseoviridis, then with the preparation Mycostop which was developed from this actinomycete. These were carried out on ornamentals, on vegetables and on some cereals. The preparation was especially effective against Fusarium spp. but also against other pathogens. 相似文献
32.
33.
SIMON R. PLATT RUTH DENNIS KATE MURPHY ALBERTA DE STEFANI 《Veterinary radiology & ultrasound》2005,46(6):467-471
A 2-year-old male (Hungarian Vizsla) was evaluated for progressive discomfort of possible spinal origin. A minimum data base, thoracolumbar magnetic resonance (MR) imaging examination and electrophysiologic investigation were all normal. Cerebellomedullary and lumbar cerebrospinal fluid (CSF) was collected. The fluid was unremarkable except for elevated total protein. Shortly, thereafter, the dog had progressive neurologic deterioration referable to a caudal lumbar spinal cord lesion. In a repeated MR examination there was a well-circumscribed intramedullary lesion at the site where lumbar CSF was collected. The signal characteristics of the lesion were compatible with subacute hemorrhage, which was confirmed to be hematomyelia at the time of successful decompressive surgery. 相似文献
34.
DENIS J. MARCELLIN-LITTLE DEVD Diplomate ACVS ANTONIO FERRETTI DVM Diplomate ECVS SIMON C. ROE BVSC MS PhD Diplomate ACVS DAVID J. DEYOUNG DVM Diplomate ACVS Diplomate ACVS 《Veterinary surgery : VS》1998,27(3):231-245
Objective —To evaluate hinged circular external fixation for correction of antebrachial deformities in dogs.
Study Design —Uncontrolled clinical trial.
Animal Population —Seven client-owned dogs.
Methods —Six dogs had one radius corrected and one dog had both radii corrected. Preoperative planning included measurement of the craniocaudal and mediolateral angular deformities, rotational deformity, length deficit, origin of deformity, graphical or mathematical determination of the amplitude and direction of the actual limb deformity, and frame assembly.
Results —Preoperatively, function and cosmesis were assessed to be fair to poor in all dogs. Deformity correction started 48 to 60 hours postoperatively and ranged from 0.46 mm to 1.36 mm twice daily. Hospitalization time ranged from 4 to 6 days. Corrections were mostly made by the owners, at home. Lengthening and angular correction ranged from 3 to 38 mm and 18° to 48°. Mean residual deformities were 2.7% of radial length and 2.7°. The time duration with the circular external fixators in place ranged from 29 to 71 days. Two additional surgeries were necessary in one dog because of wire breakage. Mean follow-up was 40 months. Long-term function and cosmesis were good to excellent in all dogs.
Conclusion—Although complications were present in six of seven dogs, the outcome of hinged Ilizarov external fixation was successful in all dogs treated for deformities of the antebrachium.
Clinical Relevance —Despite complex preoperative planning, the placement of hinged circular external fixators is straightforward, and allows precise correction of complex antebrachial deformities with minimal tissue trauma. 相似文献
Study Design —Uncontrolled clinical trial.
Animal Population —Seven client-owned dogs.
Methods —Six dogs had one radius corrected and one dog had both radii corrected. Preoperative planning included measurement of the craniocaudal and mediolateral angular deformities, rotational deformity, length deficit, origin of deformity, graphical or mathematical determination of the amplitude and direction of the actual limb deformity, and frame assembly.
Results —Preoperatively, function and cosmesis were assessed to be fair to poor in all dogs. Deformity correction started 48 to 60 hours postoperatively and ranged from 0.46 mm to 1.36 mm twice daily. Hospitalization time ranged from 4 to 6 days. Corrections were mostly made by the owners, at home. Lengthening and angular correction ranged from 3 to 38 mm and 18° to 48°. Mean residual deformities were 2.7% of radial length and 2.7°. The time duration with the circular external fixators in place ranged from 29 to 71 days. Two additional surgeries were necessary in one dog because of wire breakage. Mean follow-up was 40 months. Long-term function and cosmesis were good to excellent in all dogs.
Conclusion—Although complications were present in six of seven dogs, the outcome of hinged Ilizarov external fixation was successful in all dogs treated for deformities of the antebrachium.
Clinical Relevance —Despite complex preoperative planning, the placement of hinged circular external fixators is straightforward, and allows precise correction of complex antebrachial deformities with minimal tissue trauma. 相似文献
35.
A radiographic study was conducted to evaluate the effect of pelvic rotation and of simulated dorsal acetabular rim (DAR) remodeling on the radiographic appearance of the dorsal acetabular edge (DAE). The DAE is the line connecting the cranial and caudal rims of the acetabulum when viewing a pelvic radiograph made with the dog in the ventrodorsal position with the hind limbs extended. In this study, it was hypothesized that the DAE would change with pelvic rotation and simulated DAR damage. Ventrodorsal radiographs of eight canine pelves were made at 0 degrees, 5 degrees, and 10 degrees of left and right pelvic rotation over its longitudinal axis. These radiographs were repeated following removal of 2, 4, and then 6 mm of bone from the right DAR of each pelvis. The ratio of acetabular width to maximum depth of the DAE was calculated. The area between the DAE and a straight line connecting the cranial and caudal acetabular rims was measured digitally. The DAE depth and area changed with pelvic rotation, and with increasing simulated DAR damage. A linear relationship between the obturator foramina width ratio and pelvic rotation allowed estimation of the degree and direction of pelvic rotation. Equations were developed from the data to assist with the estimation of the amount of DAR remodeling on a clinical radiograph. 相似文献
36.
Subdural Hematoma in a Dog 总被引：1，自引：0，他引：1
A traumatic subacute subdural hematoma in a dog was diagnosed by computed tomography and treated successfully by craniectomy and surgical drainage. 相似文献
37.
38.
39.
40.