全文获取类型
收费全文 | 363篇 |
免费 | 10篇 |
国内免费 | 1篇 |
专业分类
林业 | 34篇 |
农学 | 14篇 |
53篇 | |
综合类 | 7篇 |
农作物 | 9篇 |
水产渔业 | 41篇 |
畜牧兽医 | 152篇 |
园艺 | 3篇 |
植物保护 | 61篇 |
出版年
2023年 | 1篇 |
2022年 | 2篇 |
2021年 | 7篇 |
2020年 | 3篇 |
2019年 | 1篇 |
2018年 | 8篇 |
2017年 | 4篇 |
2016年 | 15篇 |
2015年 | 13篇 |
2014年 | 8篇 |
2013年 | 25篇 |
2012年 | 18篇 |
2011年 | 21篇 |
2010年 | 17篇 |
2009年 | 21篇 |
2008年 | 27篇 |
2007年 | 31篇 |
2006年 | 26篇 |
2005年 | 25篇 |
2004年 | 20篇 |
2003年 | 17篇 |
2002年 | 18篇 |
2001年 | 7篇 |
2000年 | 5篇 |
1999年 | 6篇 |
1998年 | 2篇 |
1996年 | 1篇 |
1992年 | 2篇 |
1991年 | 3篇 |
1989年 | 1篇 |
1987年 | 3篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 5篇 |
1983年 | 2篇 |
1982年 | 3篇 |
1980年 | 3篇 |
1979年 | 1篇 |
排序方式: 共有374条查询结果,搜索用时 203 毫秒
81.
Tsutomu TSUKADA Kunitada SATO Masaharu MORIYOSHI Masanori KOYAGO Yutaka SAWAMUKAI 《Journal of Equine Science》2008,19(2):35-38
A total of 88 thoroughbred mares were diagnosed with clinical ovarian quiescence and
subjected to four treatment regimens. Using PMSG, hCG or combinations of both. A high dose
combination of 5,000IU PMSG with 5,000IU hCG showed significantly higher rates of marked
estrus and ovulation induction (P<0.01) as well as conception rates (P<0.05). In the
present study, the administration of a high-dose combination of PMSG with hCG was shown to
be an effective treatment of ovarian quiescence in light mares. 相似文献
82.
Rosalina M. LAPITAN Arnel N. DEL BARRIO Osamu KATSUBE Tomomi BAN-TOKUDA Edgar A. ORDEN Alberto Y. ROBLES Libertado C. CRUZ Yukio KANAI Tsutomu FUJIHARA 《Animal Science Journal》2008,79(2):210-217
The objective of this study was to compare the carcass and meat quality in crossbred cattle and crossbred water buffalo at the same younger age and fed with high roughage in the Philippines. Ten crossbred cattle and 10 crossbred water buffalo, with an average age of 22 months (18–24 months) were used in this experiment. The animals were fed a similar diet, which consisted of 85% Napier or Para grass and 15% concentrate mixture on a dry matter basis, for 180 days before slaughter. Slaughter weight of the crossbred water buffalo was higher (P < 0.05) than that of the cattle, although the dressing percentage was significantly (P < 0.01) lower for the former than for the latter. The estimated lean yield was higher (P < 0.05) in crossbred cattle than crossbred water buffalo. The muscle fiber diameter of loin in buffalo meat was smaller (P < 0.05) than that in cattle. In regard to carcass and meat quality, the crossbred water buffalo was comparable or slightly superior to the crossbred cattle in tenderness, sensory score of color (P < 0.01) and flavor (P < 0.05). These results clearly indicate that at a younger age and even under high roughage‐based fattening rations, crossbred water buffalo are able to produce good quality meat, which will be by no means inferior to that of crossbred cattle in the Philippines. 相似文献
83.
Verticillium dahliae isolates from potato on the island of Hokkaido (potato isolates) and those belonging to pathotypes A (eggplant pathotype),
B (tomato pathotype) and C (sweet pepper pathotype) were divided into three distinct groups by RAPD and REP-PCR. The three
DNA groups I, II, III consisted of pathotypes A and C, pathotype B and potato isolates, respectively. The potato isolates
were assigned to pathotype A on the basis of pathogenicity. Another set of potato isolates was further collected from eight
potato cropping regions on Hokkaido to further examine the relationships among them in detail. Only one of these isolates
was identified as DNA group II, but all the others were classified as DNA group III. Isolates from daikon, eggplant, and melon
on Hokkaido also belonged to DNA group III. These results suggest that V. dahliae isolates from Hokkaido are unique at the DNA level and different from other pathotype A isolates in Japan.
Received 28 February 2000/ Accepted in revised form 6 November 2000 相似文献
84.
Tomomi TAKANO Saya YAMASHITA Michiko MURATA-OHKUBO Kumi SATOH Tomoyoshi DOKI Tsutomu HOHDATSU 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2016,78(2):341-345
We collected rectal swabs from dogs in Japan during 2011 to 2014, and canine coronavirus (CCoV) nucleocapsid
gene was detected by RT-PCR. The relationship between CCoV infection and the manifestation of diarrhea
symptoms was investigated, and a correlation was noted (df=1, χ2=8.90,
P<0.005). The types of CCoV detected in samples from CCoV-infected dogs were CCoV-I in
88.9% and CCoV-II in 7.4%, respectively. We retrospectively investigated the seroprevalence of CCoV-I in dogs
in Japan during 1998 to 2006. The sera were tested with a neutralizing antibody test. In the absence of CCoV-I
laboratory strain, we used feline coronavirus (FCoV)-I that shares high sequence homology in the S protein
with CCoV-I. 77.7% of the sera were positive for neutralizing anti-FCoV-I antibodies. 相似文献
85.
Software development for estimating the concentration of radioactive cesium in the skeletal muscles of cattle from blood samples
下载免费PDF全文
![点击此处可从《Animal Science Journal》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Tomokazu Fukuda Masahiro Hiji Yasushi Kino Yasuyuki Abe Hideaki Yamashiro Jin Kobayashi Yoshinaka Shimizu Atsushi Takahashi Toshihiko Suzuki Mirei Chiba Kazuya Inoue Yoshikazu Kuwahara Motoko Morimoto Masafumi Katayama Kenichiro Donai Hisashi Shinoda Tsutomu Sekine Manabu Fukumoto Emiko Isogai 《Animal Science Journal》2016,87(6):842-847
The 2011 earthquake severely damaged the Fukushima Daiichi Nuclear Power Plant (FNPP), resulting in the release of large quantities of radioactive material into the environment. The deposition of these radionuclides in rice straw as livestock feed led to the circulation of contaminated beef in the market. Based on the safety concern of the consumers, a reliable method for estimating concentrations of radioactive cesium in muscle tissue is needed. In this study, we analyzed the concentrations of radioactive cesium in the blood and skeletal muscle of 88 cattle, and detected a linear correlation between them. We then developed software that can be used to estimate radioactive cesium concentrations in muscle tissue from blood samples. Distribution of this software to the livestock production field would allow us to easily identify high‐risk cattle, which would be beyond the safety regulation, before shipping out to the market. This software is planned to be released as freeware. This software would contribute to food safety, and aid the recovery of the livestock industry from the damage creacted by the 2011 Tohoku earthquake and tsunami. 相似文献
86.
87.
Akiko Nagasaka Yu Nagasaka Kinuko Ito Tsutomu Mano Masami Yamanaka Atushi Katayama Yoshikazu Sato Andrey L. Grankin Andrey I. Zdorikov Gennady A. Boronov 《Journal of Forest Research》2006,11(5):377-382
We examined the relationship between the annual escapement of salmon and the δ
15N of willow (Salix spp.) leaves to evaluate the contribution of marine-derived nutrients (MDN) to riparian vegetation around the Pacific Northwest
and Northeast regions. Foliar δ
15N values ranged from −3.42‰ to 4.65‰. The value increased with increasing density of carcasses up to 500 fish/km and 1500
fish/km. δ
15N values were variable at carcass densities below 500 fish/km. Possible factors affecting the fluctuation of δ
15N at reference sites are: (1) denitrification; (2) the presence of N2-fixing trees, such as alder; and (3) agricultural runoff. δ
15N values at the sites with carcass densities over 500 fish/km were consistently high, while a value of δ
15N below zero was observed at only one site (Rusha River; δ
15N = −1.87‰). At this site, most adult pink salmon returned to limited locations near the estuary because steeper channel gradients
acted as a migration barrier, resulting in the negative δ
15N value. Nevertheless, we concluded that our results showed evidence of the feedback of MDN to terrestrial vegetation, although
the use of the δ
15N value as a terrestrial end member at spawning sites is limited. If the relationship between the enrichment index, which
is expressed as the values using a mixing model, and salmon abundance was estimated, the availability of MDN in riparian ecosystems
could possibly be evaluated and will lead to the establishment of escapement goals.
An erratum to this article is available at . 相似文献
88.
Two novel dicarboxylic Acid derivatives and a new dimeric hydrolyzable tannin from walnuts 总被引:1,自引:0,他引:1
Ito H Okuda T Fukuda T Hatano T Yoshida T 《Journal of agricultural and food chemistry》2007,55(3):672-679
In addition to the 16 previously reported polyphenols including 3 new ellagitannins, 2 novel dicarboxylic acid derivatives, glansreginins A (1) and B (2), and a new dimeric hydrolyzable tannin, glansrin D (3), were isolated, together with 15 known compounds from walnuts, the seeds of Juglans regia. The structures of the new compounds were elucidated on the basis of 1D- and 2D-NMR analyses and chemical data. The antioxidant effect of these isolates was also evaluated by SOD-like and DPPH radical scavenging activities. 相似文献
89.
90.
Takai S Zhuang D Huo XW Madarame H Gao MH Tan ZT Gao SC Yan LJ Guo CM Zhou XF Hatori F Sasaki Y Kakuda T Tsubaki S 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2006,68(7):739-742
Little is known about the distribution of Rhodococcus equi in the soil environment of native horses in China. One hundred and eight soil samples were collected from native-horse farms in the Hulun Beier grasslands of eastern Mongolia, the Xilin Goler grasslands of southern Mongolia, and Tongliao City in Inner Mongolia, China. The isolation rates of R. equi from soil samples from the Hulun Beier and Xilin Goler grasslands ranged from 25.9% to 30.0%. In contrast, isolation rates from soil samples from Tongliao City were as high as 82.3% and the mean number of R. equi in soil samples from Tongliao City was 10 times more than those of samples from the grasslands. The 488 isolates were examined using PCR for the presence of genes that encode virulence-associated 15-17 kDa antigen protein (VapA) and the 20 kDa antigen protein (VapB). All isolates were negative for virulence-associated proteins. Plasmid profiles of these avirulent isolates showed that cryptic plasmids of various sizes were present with an incidence of 13.3% to 21.5%. The results of the present study contrast with those of our recent study (J. Vet. Med. Sci. 67:611-613, 2005), in which we reported that R. equi was absent from Mongolian horses in Ulaanbaatar, Mongolia. It is suggested that the difference between the results of these two studies is due to the mobile pasturing system in Mongolia and nonmobile pasturing system in Inner Mongolia. 相似文献