全文获取类型
收费全文 | 102篇 |
免费 | 0篇 |
专业分类
29篇 | |
综合类 | 3篇 |
水产渔业 | 23篇 |
畜牧兽医 | 43篇 |
植物保护 | 4篇 |
出版年
2022年 | 2篇 |
2021年 | 11篇 |
2016年 | 1篇 |
2015年 | 6篇 |
2014年 | 12篇 |
2013年 | 1篇 |
2012年 | 3篇 |
2011年 | 4篇 |
2010年 | 3篇 |
2009年 | 8篇 |
2008年 | 2篇 |
2007年 | 11篇 |
2006年 | 8篇 |
2005年 | 1篇 |
2004年 | 2篇 |
2003年 | 6篇 |
2002年 | 2篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1998年 | 2篇 |
1997年 | 3篇 |
1994年 | 1篇 |
1992年 | 1篇 |
1988年 | 2篇 |
1983年 | 2篇 |
1982年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1955年 | 1篇 |
1952年 | 1篇 |
1949年 | 1篇 |
排序方式: 共有102条查询结果,搜索用时 15 毫秒
11.
Azusa SOMEYA Ryoko FUKUSHIMA Michiko YOSHIDA Yasuyuki TANAHASHI Tangmunkhong PRAPEUK Reiko IIZUKA Hiroshi HIRAMI Atsushi MATSUDA Shunichi TAKAHASHI Goro KURITA Takashi KIMURA Misuzu SEO Masayuki FUNABA Yoshii NISHINO 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2014,76(8):1157-1160
12.
Effect of temperature and cell density on ethanol fermentation by a thermotolerant
aquatic yeast strain isolated from a hot spring environment 总被引:2,自引:0,他引:2
ABSTRACT: A thermotolerant, fermentative yeast strain named RND13 from a hot spring drainage was evaluated for its ethanol-producing ability at elevated temperatures at a high substrate concentration [15% (w/v) glucose] close to the level reflecting industrial practice. The RND13 was capable of utilizing glucose almost completely at 40°C with increasing inoculum size, producing ethanol up to 6.6% (w/v), which is comparable to levels (7.0–7.2%) at 30°C. The maximum rate of ethanol production by the RND13 was found to be 9.0 g/L per h at 40°C in an inoculum sized 5% (w/v). At 43°C, however, the RND13 could not utilize glucose to completion and showed a slight drop in the extent of produced ethanol [6.0% (w/v)]. Thus, the culture at 40°C with a 5% cell inoculum was considered to be the optimal condition for ethanol production at higher temperatures in terms of batch fermentation. In the phylogenetic analysis based on the small-subunit rDNA sequence, the strain was grouped together with both Candida glabrata and Kluyveromyces delphensis , which are relatively close to Saccharomyces cerevisiae . 相似文献
13.
14.
Abstract. Exotoxins prepared from streptococcal bacteria of Seriola spp. origin were grown in fluid culture and fractionates of the supernatant used in toxicity studies in Seriola by oral and percutaneous exposure. Toxic fractions were then applied simultaneously with oral challenge with Streptococcus spp. bacteria. Two fractions E and G were shown to have a significant effect on the pathogenesis of infection. 相似文献
15.
16.
Abstract. The in vitro bacteriostatic activity of a combination of sulphadiazine (SDZ) and trimethoprim (TMP) against representative bacterial fish pathogens was studied. In general, the minimum inhibitory concentrations (MIC) of TMP were much smaller than comparable values for SDZ. When SDZ and TMP were combined, the bacteriostatic effect was enhanced in a synergistic manner for all bacteria tested except Pseudomonas fluorescens . The synergism was most remarkable in the case of bacterial strains that were sensitive to the action of SDZ alone. This degree of synergism was observed when the ratios of SDZ and TMP in combination were in the range of 1:1 io 5:1. The MIC of SDZ plus TMP combined was less than 3.13 μg/ml for SDZ resistant strains and as low as 0.2 to 0.78 μ/ml for SDZ sensitive strains. The possible usefulness of a combination of these two compounds for therapy or control of bacterial fish disease is discussed. 相似文献
17.
Denitrification characteristics of pond sediments in a Chinese agricultural watershed 总被引:2,自引:0,他引:2
Feiyue LI Rong YANG Chaopu TI Man LANG Sonoko D. KIMURA Xiaoyuan YAN 《Soil Science and Plant Nutrition》2010,56(1):66-71
Ponds are widely distributed in rice-based agricultural watersheds, particularly in southern China, and may play an important role in nitrate ( ) removal. However, the denitrification rate of pond sediment, measured using the acetylene (C2 H2 ) inhibition technique, indicated that the amount of nitrogen removed by denitrification accounted for <1% of the total nitrogen applied. The present study was undertaken to determine the effects of sediment depth and temperature on denitrification of pond sediment using the C2 H2 inhibition technique. The highest denitrification potential was found in the upper 5 cm of sediment, but this only accounted for approximately 34% of the total denitrification of the upper 0–30 cm of sediment, suggesting that sediment denitrification potential would be underestimated if only the upper 5 cm of sediment was measured. The denitrification potential was low and showed a weak response over a temperature range of 6–18°C, whereas denitrification increased significantly from 18 to 30°C, indicating that denitrification may play an important role in the removal of in warm seasons. A comparison of the disappearance and C2 H2 inhibition methods showed that they were significantly ( P < 0.01) and positively correlated. However, the C2 H2 inhibition method gave only approximately 25% of the values determined by the disappearance method. 相似文献
18.
19.
20.