全文获取类型
收费全文 | 132篇 |
免费 | 13篇 |
专业分类
林业 | 22篇 |
13篇 | |
综合类 | 4篇 |
农作物 | 4篇 |
水产渔业 | 48篇 |
畜牧兽医 | 45篇 |
植物保护 | 9篇 |
出版年
2022年 | 1篇 |
2021年 | 2篇 |
2020年 | 2篇 |
2019年 | 2篇 |
2018年 | 5篇 |
2017年 | 7篇 |
2016年 | 6篇 |
2015年 | 8篇 |
2014年 | 17篇 |
2013年 | 8篇 |
2012年 | 12篇 |
2011年 | 7篇 |
2009年 | 8篇 |
2008年 | 7篇 |
2007年 | 9篇 |
2006年 | 11篇 |
2005年 | 4篇 |
2004年 | 7篇 |
2003年 | 7篇 |
2002年 | 8篇 |
2001年 | 2篇 |
2000年 | 1篇 |
1998年 | 3篇 |
1997年 | 1篇 |
排序方式: 共有145条查询结果,搜索用时 359 毫秒
141.
Hiroyuki OKADA Kohtaro MIYAZAWA Shigeo FUKUDA Yoshifumi IWAMARU Morikazu IMAMURA Kentaro MASUJIN Yuichi MATSUURA Takashi FUJII Kei FUJII Soichi KAGEYAMA Miyako YOSHIOKA Yuichi MURAYAMA Takashi YOKOYAMA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2014,76(1):103-107
142.
143.
144.
Yoshifumi Sawada Tsukasa Sasaki Keisuke Nishio Michio Kurata Tomoki Honryo Yasuo Agawa 《Aquaculture Research》2020,51(6):2261-2274
Jaw malformations are a serious problem in fingerlings of the greater amberjack, Seriola dumerili. To establish a countermeasure against these malformations, we conducted a larval behavioural test to identify their root cause, and we investigated the ability of low‐brightness rearing tank walls to control their occurrence. Larval distribution was examined in a horizontally illuminated rectangular transparent aquarium (20 cm × 100 cm × 25 cm), and their distribution was biased towards the light source after this lighting was provided from 3 to 13 days post hatching (dph), indicating positive phototaxis; this response disappeared on 22 dph (there are no data between 13 and 22 dph). Larvae were observed to swim phototactically towards the light source and repeatedly collided with the tank wall (walling behaviour). To investigate the ability of wall brightness to control the incidence of jaw malformations, we compared their incidence in a rearing trial with different Munsell colour values for the tank walls: 2.11 (black), 5.85 (grey) and 9.52 (white). The incidence rate of jaw malformations at 25 dph was significantly lower in the tanks with lower‐brightness walls, that is, 5.8%, 22.5% and 26.8% for black, grey and white respectively. Larval walling behaviour was most intense for white, followed in order by grey and black. These results indicate that positive phototaxis elicits larval walling behaviour, causing jaw malformations, and that low‐brightness tank walls control this process. 相似文献
145.
Optimal period for the effective promotion of initial swim bladder inflation in yellowfin tuna,Thunnus albacares (Temminck and Schlegel), larvae 下载免费PDF全文