全文获取类型
| 收费全文 | 85篇 |
| 免费 | 16篇 |
专业分类
| 3篇 | |
| 综合类 | 3篇 |
| 农作物 | 1篇 |
| 水产渔业 | 1篇 |
| 畜牧兽医 | 87篇 |
| 植物保护 | 6篇 |
出版年
| 2023年 | 1篇 |
| 2022年 | 1篇 |
| 2021年 | 1篇 |
| 2019年 | 2篇 |
| 2018年 | 5篇 |
| 2017年 | 1篇 |
| 2016年 | 6篇 |
| 2015年 | 8篇 |
| 2014年 | 5篇 |
| 2013年 | 25篇 |
| 2012年 | 1篇 |
| 2011年 | 8篇 |
| 2010年 | 8篇 |
| 2009年 | 8篇 |
| 2008年 | 6篇 |
| 2007年 | 2篇 |
| 2006年 | 2篇 |
| 2004年 | 1篇 |
| 2001年 | 1篇 |
| 1998年 | 1篇 |
| 1997年 | 2篇 |
| 1992年 | 1篇 |
| 1990年 | 1篇 |
| 1988年 | 2篇 |
| 1985年 | 1篇 |
| 1978年 | 1篇 |
排序方式： 共有101条查询结果，搜索用时 15 毫秒
81.
AC Morini NCG Pieri KCS Roballo DS Martins CE Ambrósio JC Morini Junior PO Favaron AHH Minervino FVT Pereira MA Miglino 《Reproduction in domestic animals》2016,51(4):509-514
Many researches describe the embryonic developmental features in domestic animals; however, in farm animals, they are scarce. Most farm animal studies are related to assisted reproduction and embryos transfer techniques. But, morphological features and size measure to estimate the age gestation are rarely reported in literature. Thus, in this study, we described the developmental changes in the bubaline (Bubalus bubali) concepts from 21 to 60 days of gestation. Our results revealed that buffalo embryos similar morphological characteristics similar to other mammalian species. Also, similarities between bovine and bubaline persist; except on foetal stages when buffalos have a faster development than bovine. Therefore, buffalo's gestation period exhibits some varieties and accurate embryo age is more difficult. Yet, when we use a combination of the crown–rump, macroscopic analysis and alizarin red, it is possible to describe better the whole embryogenesis stages of the buffalo and which can contribute for future reproduction researches and applications in veterinary practice. 相似文献
82.
83.
VL Grillo KE Arzey PM Hansbro AC Hurt S Warner J Bergfeld GW Burgess B Cookson CJ Dickason M Ferenczi T Hollingsworth MDA Hoque RB Jackson M Klaassen PD Kirkland NY Kung S Lisovski MA O'Dea K O'Riley D Roshier LF Skerratt JP Tracey X Wang R Woods L Post 《Australian veterinary journal》2015,93(11):387-393
84.
Bitter rot, caused by the fungus Greeneria uvicola, is one of the most important fruit rot diseases that threaten the burgeoning winegrape (Vitis vinifera) industry in the southeastern United States. Epidemiological studies were conducted to examine the period of fruit susceptibility of V. vinifera to G. uvicola, influence of temperature and duration of wetness on infection, and relative susceptibility of cultivars to bitter rot. In field studies, susceptibility of Merlot, Chardonnay, and Cabernet Franc fruit increased from bloom until véraison in 2003 and from bloom until 2 weeks before véraison in 2004. When detached V. vinifera fruit were inoculated and incubated at 14, 22, 26, and 30 degrees C for 6, 12, 18 or 24 h of wetness, 22.4 to 24.6 degrees C and 6 or 12 h of wetness were the optimal conditions for infection of fruit by G. uvicola. The relative susceptibility of 38 cultivars and selections, including 23 V. vinifera cultivars and five French-American hybrids, was determined in a detached fruit inoculation assay. A wide range in susceptibility was observed among the cultivars and selections. Fruit of cultivars of V. vinifera were significantly more susceptible than French-American hybrids. Isolates of G. uvicola differed in aggressiveness when tested on cv. Chardonnay. 相似文献
85.
High susceptibility and low resistance allele frequency of Chrysodeixis includens (Lepidoptera: Noctuidae) field populations to Cry1Ac in Brazil 
下载免费PDF全文
下载免费PDF全文 86.
A 64-day growth experiment was conducted in which two groups of Atlantic salmon parr were grown under either control conditions
or subjected to a weekly crowding stressor. Subjecting fish to the stressor resulted in a 7.7% reduction in wet weight after
29 days, which was maintained at 7.9% by day 64. This reduction in weight was reflected in a 44% reduction in specific growth
rate and 38% increase in feed conversion ratio over the first 29 days of the experiment. Elevation in plasma cortisol was
observed in crowded fish on days 1, 29 and 64. Similarly, on days 1 and 29 an increase in both plasma glucose and lactate
was detected. On day 64, however, no differences in plasma glucose and lactate were observed, with the magnitude of the cortisol
response also significantly reduced. Overall, the relatively moderate impact on growth performance and reduction in magnitude
of measured stress parameters at the end of the experiment suggests possible habituation to the applied stressor. 相似文献
87.
88.
89.
90.
Abstract Extract A single case of the inherited lysosomal storage disease known as mucopolysaccharidosis-IIIA (MPS-IIIA), due to a deficiency of the enzyme heparan sulphatase, was reported in an 18-month-old male Huntaway dog (Jolly et al 2000). He had developed normally but when presented with a history of progressive ataxia over the preceding month, had a high stepping, prancing gait and difficulty in jumping into a utility vehicle. In addition, he had started to defaecate in his kennel. Following diagnosis of the enzyme deficiency, the mutant heparan sulphatase gene was sequenced and a PCR/restriction enzyme diagnostic test developed, based on the mutation. This is capable of detecting both homozygous and heterozygous individuals (Yogalingam et al 2000). 相似文献