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61.
Noriyuki HORIUCHI Makoto KOMAGATA Keiichi SHITAMURA Shiori CHIBA Kotaro MATSUMOTO Hisashi INOKUMA Takane MATSUI Yoshiyasu KOBAYASHI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(6):729-732
An 11-year-old Holstein-Friesian cow exhibited anorexia and jaundice. A large mass was
found in the liver during necropsy. Macroscopically, the mass was composed of dark red
multilobular tissue and a centrally located abscess, which was connected to the hepatic
duct. Histologically, the mass consisted of proliferation of small neoplastic cells and
was demarcated from the hepatic parenchyma by a thick region of granulation tissue. The
neoplastic cells were predominantly arranged in solid sheets, but they also formed
blood-filled cancellous structures, and proliferating foci were seen around blood vessels.
Periodic acid-Schiff reaction demonstrated that a fine basement membrane-like structure
surrounded the neoplastic cells. Immunohistochemically, the neoplastic cells were positive
for vimentin and alpha smooth muscle actin and negative for cytokeratin, factor
VIII-related antigen, chromogranin and desmin. Based on its histopathological features,
the hepatic neoplasm was diagnosed as a primary glomus tumor. This is the first report
about a primary glomus tumor of the liver in a cow. 相似文献
62.
Yuka KOJIMA Shiori CHIBA Noriyuki HORIUCHI Yoshiyasu KOBAYASHI Hisashi INOKUMA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(5):605-607
S100B in cerebrospinal fluid (CSF-S100B) was measured in calves with 20 neurologic and 21
non-neurologic diseases to clarify its utility as a biomarker for neurologic diseases. The
median CSF-S100B value in the neurologic disease group (43.0
ng/ml) was significantly higher than that in the
non-neurologic disease group (10.2 ng/ml). As CSF-S100B
levels in calves with neurologic diseases widely differed, the utility of CSF-S100B as a
diagnostic marker for neurologic diseases in cattle remains inconclusive. 相似文献
63.
Noriyuki HORIUCHI Daishiro KUMAGAI Kotaro MATSUMOTO Hisashi INOKUMA Hidefumi FURUOKA Yoshiyasu KOBAYASHI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(10):1281-1283
Bovine dilated cardiomyopathy (DCM) is an autosomal recessive genetic disorder causing
congestive heart failure and subsequent death. Recently, a nonsense mutation c.343C>T
in the bovine optic atrophy 3 (OPA3) gene had been reported to cause the DCM in Holstein
cattle in Switzerland. However, the mutation has not been confirmed in bovine DCM outside
Switzerland. Nine Holstein Friesian cows that were macroscopically and histologically
diagnosed with or suspected of DCM and 12 control cows kept in Japan were tested for the
mutation. The mutation surrounding OPA3 DNA fragment was amplified by PCR and subjected to
direct sequences. The homogeneous c.343C>T mutation was proved to occur in all the
affected cows and not in the control cows. The present study is the first report of the
mutation in the DCM affected cows outside Switzerland. 相似文献
64.
Shiori CHIBA Shingo FUNATO Noriyuki HORIUCHI Kotaro MATSUMOTO Hisashi INOKUMA Hidefumi FURUOKA Yoshiyasu KOBAYASHI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(2):147-154
Degeneration of the optic pathway has been reported in various animal species including cattle. We experienced a case of bilateral optic tract degeneration characterized by severe gliosis in a Japanese black cattle without any obvious visual defects. To evaluate the significance, pathological nature and pathogenesis of the lesions, we examined the optic pathway in 60 cattle (41 Japanese black, 13 Holstein and 6 crossbreed) with or without ocular abnormalities. None of these animals had optic canal stenosis. Degenerative changes with severe gliosis in the optic pathway, which includes the optic nerve, optic chiasm and optic tract, were only observed in 8 Japanese black cattle with or without ocular abnormalities. Furthermore, strong immunoreactivity of glial fibrillary acidic protein was observed in the retinal stratum opticum and ganglion cell layer in all 5 cattle in which the optic pathway lesions could be examined. As etiological research, we also examined whether the
concentrations of vitamin A and vitamin B12 or bovine viral diarrhea virus (BVDV) infection was associated with optic pathway degeneration. However, our results suggested that the observed optic pathway degeneration was probably not caused by these factors. These facts indicate the presence of optic pathway degeneration characterized by severe gliosis that has never been reported in cattle without bilateral compressive lesions in the optic pathway or bilateral severe retinal atrophy. 相似文献
65.
Yamamoto Y Fukushima T Suna Y Ishii N Saeki A Seki S Tagawa S Taniguchi M Kawai T Aida T 《Science (New York, N.Y.)》2006,314(5806):1761-1764
Controlled self-assembly of a trinitrofluorenone-appended gemini-shaped amphiphilic hexabenzocoronene selectively formed nanotubes or microfibers with different photochemical properties. In these nanotubes, which are 16 nanometers in diameter and several micrometers long, a molecular layer of electron-accepting trinitrofluorenone laminates an electron-donating graphitic layer of pi-stacked hexabenzocoronene. The coaxial nanotubular structure allows photochemical generation of spatially separated charge carriers and a quick photoconductive response with a large on/off ratio greater than 10(4). In sharp contrast, the microfibers consist of a charge-transfer complex between the hexabenzocoronene and trinitrofluorenone parts and exhibit almost no photocurrent generation. 相似文献
66.
Noriyuki Miyake Hirofumi Nagai Shinro Kato Masashi Matsusaki Shiro Fukuta Reiko Takahashi Ryoji Suzuki Yasushi Ishiguro 《Journal of General Plant Pathology》2017,83(1):1-6
Two detection methods combining loop-mediated isothermal amplification (LAMP) and a bait trap were developed to detect Pythium helicoides in greenhouses containing roses, miniature roses, and poinsettias in hydroponic culture systems. In “Bait-LAMP”, a crude extract derived from perilla seeds as the bait was used in the LAMP reaction, whereas in the “Bait culture-LAMP”, a crude extract of mycelia grown out from perilla seeds onto Pythium-selective medium served as the bait. The two methods are simple and rapid for practical monitoring of P. helicoides in hydroponic culture systems. 相似文献
67.
Evaluation of the thermal property of bovine intramuscular adipose tissue using differential scanning calorimetry
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Noriyuki Kimura Nana Nishimura Nagako Iwama Yoshito Aihara Yasuki Ogawa Yuji Miyaguchi 《Animal Science Journal》2017,88(10):1615-1622
The thermal property of bovine intramuscular adipose tissue (IAT) was evaluated using differential scanning calorimetry (DSC) and compared with the melting point temperature (MP) of the fat extract of IAT, which was measured using the slip point method. The beef samples were classified according to the beef marbling score (BMS). Beef with a high BMS contained less protein than that with middle or low BMS. Beef with a high BMS contained significantly more fat than that with a low BMS (P < 0.05). The endothermic point temperature (EP) of IAT, measured by DSC, was significantly higher than the MP of IAT fat (P < 0.05). The EP showed no significant difference among the three marbling grade groups. Although the MP was correlated with the monounsaturated fatty acids (MUFA) content of IAT (R2 = 0.505), there was no correlation between the EP and the MUFA (R2 = 0.040). However, the EP of IAT treated with collagenase was relatively highly correlated with the MP (R2 = 0.655). Thus, these results suggested that DSC analysis would give us the practical thermal information regarding the melt‐in the‐mouth of beef such as the gelatinization of collagen, along with the melting of fat in IAT. 相似文献
68.
Natural regeneration of canopy tree species is generally poor under a selective cutting regime practised in mixed conifer–hardwood
stands on Hokkaido, northern Japan, and is prevented by dense bamboo layers in the understory. To promote tree regeneration,
we scarified soil in ten sites, with elevations ranging from 420 to 760 m, in 1979, with a rake-equipped bulldozer to produce
three different artificial microtopographies (concave, flat, and convex). Twenty-six years after scarification, six canopy
tree species (Acer mono, Abies sachalinensis, Betula ermanii, B. maximowicziana, Kalopanax pictus, and Picea jezoensis) had become well established. Abies sachalinensis and B. ermanii regenerated at all sites. Picea jezoensis was well established in high-elevation sites, whereas other hardwood tree species (A. mono, B. maximowicziana, and K. pictus) were well established at low-elevation sites. The Betula species dominated upper layers of regenerated trees, and two conifer species (A. sachalinensis and P. jezoensis) occupied lower layers. Regenerated densities of four (of six) major tree species were positively correlated with standing
timber volume of mother trees, whereas those of shade-intolerant species (two Betula species and K. pictus) were negatively correlated with standing timber volume of all canopy trees. Small-seeded species (P. jezoensis and the two Betula species) had higher regeneration densities on convex sites than on other microtopographies. Adequate seed supply, convex
substratum for small-seeded species, and control of light conditions for shade-intolerant species should be taken into account
when planning regeneration of desirable tree species in central Hokkaido. 相似文献
69.
Many unimodal models have been developed to describe the soil water characteristic curves (SWCC). However, for soils with inner porosity the independent draining of the structural and matrix pores frequently results in two distinct air-entry values, which any single unimodal function does not reproduce adequately. In the presented study, a bimodal lognormal (BLN) SWCCs function have been developed for soils with inner porosity. The model involved two overlaying continua pore systems, the pore probability density functions of systems were assumed as lognormal distribution and them can be superposed to obtain the overall probability density function of the soil. The experimental SWCCs data were used to verify the proposed method. The fitted result showed that the BLN approach resulted in the best agreement between measurement and simulation (R2 > 0.99, RSME < 0.66). Another advantage of proposed function was capable of simulating bimodal SWCC using parameters which can be related to physical properties of the structural soils. These physically based parameters could more intuitively analyse the measured data. The BLN approach can potentially be used as effective tool for identifying mechanical and hydraulic porosities in the structural mediums. 相似文献
70.
Akihiro Okamura Yoshiaki Yamada Naomi Mikawa Noriyuki Horie Tomoko Utoh Toyoji Kaneko Satoru Tanaka Katsumi Tsukamoto 《Aquaculture (Amsterdam, Netherlands)》2009,296(3-4):367-372
We investigated the effects of low-salinity water on the growth, survival, and activity of artificially reared Japanese eel larvae (Anguilla japonica), proceeding from the assumption that such water quality saves energy due to lower cost for osmoregulation. We reared 5-day-old larvae in 0%, 10%, 30%, 50%, 70%, and 100% seawater (SW) with or without diet for 13 days. All larvae reared in 0% and 10% SW died within 6 days, while larvae in 70% and 100% SW survived until 9 days. Larvae in 30% and 50% SW further survived until 13 days without diet. Significant growth in body depth was observed in 30% and 50% SW after 7 days rearing with diet (0.65 ± 0.02 and 0.62 ± 0.02 mm, respectively) as compared with the initial size (0.49 ± 0.03 mm), while no significant growth was observed under the other salinity conditions examined. Larvae swam actively in the light (about 2000 lx) in 50%, 70%, and 100% SW, while they were apparently inactive in 0%, 10%, and 30% SW. The long-term rearing trial showed a 2.2-fold higher 2-month cumulative survival rate in 50% SW (18.2%) than in 100% SW (8.2%). The body depth of larvae in 50% SW (1.58 ± 0.47 mm) was also significantly larger than in 100% SW (1.32 ± 0.35 mm). These findings indicate that the intermediate salinity can result in better growth and survival performance in Japanese eel larvae. 相似文献