全文获取类型
收费全文 | 200篇 |
免费 | 0篇 |
国内免费 | 1篇 |
专业分类
林业 | 2篇 |
25篇 | |
综合类 | 7篇 |
农作物 | 2篇 |
水产渔业 | 24篇 |
畜牧兽医 | 134篇 |
园艺 | 1篇 |
植物保护 | 6篇 |
出版年
2022年 | 11篇 |
2021年 | 14篇 |
2020年 | 4篇 |
2016年 | 7篇 |
2015年 | 18篇 |
2014年 | 21篇 |
2013年 | 10篇 |
2012年 | 6篇 |
2011年 | 7篇 |
2010年 | 4篇 |
2009年 | 8篇 |
2008年 | 11篇 |
2007年 | 8篇 |
2006年 | 11篇 |
2005年 | 9篇 |
2004年 | 7篇 |
2003年 | 16篇 |
2002年 | 13篇 |
2001年 | 3篇 |
2000年 | 4篇 |
1994年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1963年 | 1篇 |
1958年 | 1篇 |
1954年 | 1篇 |
1953年 | 1篇 |
1950年 | 1篇 |
1946年 | 1篇 |
排序方式: 共有201条查询结果,搜索用时 0 毫秒
21.
Mariko TAKAYASU Kouko HAMAMOTO Hiroshi SATOH Toshihiro ICHIJO Toru TAKAHASHI Kazuhisa FURUHAMA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(2):261-263
To clarify the effect of renal dysfunction on pharmacokinetics of the prokinetic agent metoclopramide (MCP), we administered intravenously 0.4 mg/kg MCP to healthy calves and calves subjected to right kidney vessel ligation (ligation) without or with a subsequent left nephrectomy (ligation plus removal). Plasma MCP concentration, glomerular filtration rate (GFR) and plasma prolactin level were measured by liquid chromatography-tandem mass spectrometry, simplified equation using iodixanol and enzyme-linked immunosorbent assay, respectively. Only in calves with ligation plus removal, plasma MCP concentrations were increased significantly 6, 8 and 12 hr after injection, showing that a negative correlation was observed between the plasma MCP concentrations and GFR value. A tendency to increase in plasma PRL concentration was noted also in these calves. In conclusions, plasma MCP concentrations depend on the GFR mode in calves, and its critical GFR value was estimated. 相似文献
22.
Yojiro YANAGAWA Yukiko MATSUURA Masatsugu SUZUKI Shin-ichi SAGA Hideto OKUYAMA Daisuke FUKUI Gen BANDO Masashi NAGANO Seiji KATAGIRI Yoshiyuki TAKAHASHI Toshio TSUBOTA 《The Journal of reproduction and development》2015,61(1):61-66
Generally, sika deer conceive a single fetus, but approximately 80% of pregnant females have two corpora lutea (CLs). The function of the accessory CL (ACL) is unknown; moreover, the process of ACL formation is unclear, and understanding this is necessary to know its role. To elucidate the process of ACL formation, the ovarian dynamics of six adult Hokkaido sika deer females were examined ultrasonographically together with peripheral estradiol-17β and progesterone concentrations. ACLs formed in three females that conceived at the first estrus of the breeding season, but not in those females that conceived at the second estrus. After copulation, postconception ovulation of the dominant follicle of the first wave is induced by an increase in estradiol-17β, which leads to formation of an ACL. A relatively low concentration of progesterone after the first estrus of the breeding season is considered to be responsible for the increase in estradiol-17β after copulation. 相似文献
23.
24.
25.
26.
27.
K. TAKAHASHI N. OKAMOTO A. KUMAGAI M. MAITA J. S. ROHOVEC Y. IKEDA 《Journal of fish diseases》1994,17(1):77-83
Abstract. Studies were conducted to clarify the relationship between growth rate and disease progression of erythrocytic inclusion body syndrome (EIBS) in artificially infected coho salmon, Oncorhynchus kisutch (Walbaum). In the diseased state, the haematocrit values decreased and the number of erythrocytes with inclusions was higher in faster growing fish. Rapid growth was accompanied by an abundance of immature erythrocytes, which had the greatest incidence of inclusion bodies. 相似文献
28.
Tomoya TAKAHASHI Akihiro MORI Hitomi ODA Isao MURAYAMA Mitsuhiko KOUNO Toshinori SAKO 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(2):260
Changes in lipoprotein profiles occur in dairy cows during the periparturient period and in cows with transition cow disease. Here, the lipoprotein profiles of Holstein–Friesian dairy cows during the periparturient period were obtained by anion-exchange, high-performance liquid chromatography to evaluate the usefulness of lipoprotein profile evaluation during the periparturient period and in cows with fatty liver and milk fever. Lipoprotein levels (including total and high- (HDL-C) and low-density lipoprotein (LDL-C) cholesterol) in 10 healthy cows were low 4 weeks prepartum, with the lowest values at calving or within 1 week of calving; the values increased at 8 weeks postpartum. The lipoprotein levels were measured in 16 cows diagnosed with fatty liver (n=10) or milk fever (n=6) and compared to 10 healthy dairy cows. A significant difference was observed in HDL-C between healthy cows (at calving and 1 week postpartum), and the fatty liver and milk fever cows. Cows with fatty liver and milk fever had a lower mean HDL-C than the 10 healthy dairy cows at calving and 1 week postpartum. HDL-C might be a good indicator of energy balance for differentiating healthy cows from those with transition cow disease. 相似文献
29.
Daisuke FUKUI Masashi NAGANO Ryohei NAKAMURA Gen BANDO Shinichi NAKATA Masao KOSUGE Hideyuki SAKAMOTO Motozumi MATSUI Yojiro YANAGAWA Yoshiyuki TAKAHASHI 《The Journal of reproduction and development》2013,59(5):491-495
Artificial insemination (AI) can help to avoid inbreeding and genetic degeneration
for sustaining genetically healthy populations of endangered species in captivity.
Collection of a sufficient quantity of viable sperm is an essential first step in the
AI process. In the present study, we examined the effects of frequent
electroejaculation on semen characteristics in a Siberian tiger. We collected semen
in all 17 trials during 6 breeding seasons (6 years). The mean number of sperm and
the percentage of motile sperm were 294.3 ± 250.2×106/ejaculate and 82.4 ±
11.4%, respectively. The number of motile sperm tended to increase during frequent
electroejaculation in the same breeding season. Semen collection by
electroejaculation can be performed effectively up to the fourth sequential
ejaculate, which contained the most sperm in the study. In conclusion, frequent
collection of sperm by electroejaculation from tigers may be effective for collection
of a large number of motile sperm. 相似文献
30.