全文获取类型
收费全文 | 103篇 |
免费 | 2篇 |
国内免费 | 2篇 |
专业分类
农学 | 1篇 |
基础科学 | 1篇 |
综合类 | 15篇 |
水产渔业 | 3篇 |
畜牧兽医 | 77篇 |
植物保护 | 10篇 |
出版年
2019年 | 2篇 |
2017年 | 1篇 |
2016年 | 1篇 |
2015年 | 1篇 |
2014年 | 5篇 |
2013年 | 4篇 |
2012年 | 1篇 |
2011年 | 2篇 |
2010年 | 2篇 |
2009年 | 5篇 |
2008年 | 2篇 |
2007年 | 4篇 |
2006年 | 1篇 |
2005年 | 3篇 |
2004年 | 1篇 |
2003年 | 6篇 |
1999年 | 3篇 |
1998年 | 6篇 |
1997年 | 5篇 |
1996年 | 4篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1979年 | 2篇 |
1976年 | 1篇 |
1974年 | 1篇 |
1971年 | 1篇 |
1967年 | 1篇 |
1963年 | 4篇 |
1959年 | 1篇 |
1958年 | 3篇 |
1957年 | 2篇 |
1956年 | 2篇 |
1955年 | 1篇 |
1954年 | 1篇 |
1953年 | 7篇 |
1948年 | 1篇 |
排序方式: 共有107条查询结果,搜索用时 15 毫秒
51.
RJ. CHAPPEL BD. MILLAR B. ADLER † J. HILL ‡ MJ. JEFFERS RT. JONES CJ. McCAUGHAN LJ. MEAD NW. SKILBECK 《Australian veterinary journal》1989,66(10):330-333
The aim of this study was to determine whether evidence could be obtained of foetal infection with Leptospira interrogans serovar hardjo in aborted foetuses collected from dairy farms. Material from 197 abortions occurring over a wide area of Victoria was collected over 3 years. None of 195 foetal kidney cultures or 7 cultures from membranes was positive for leptospiral organisms. Immunogold silver staining for leptospires was performed on sections of kidneys, lungs or heart from 156 foetuses, with negative results. Evidence of transient leptospiral infection in 11 of 123 foetuses was obtained by foetal heart blood serology. Two isolates of L. interrogans serovar hardjo were obtained from the urine of milking cows. These strains were examined by restriction endonuclease analysis and both were shown to be of the genotype Hardjobovis, as have been all Australian isolates studied so far. It appears that foetal infection with serovar hardjo is not associated with any substantial proportion of bovine abortions in Victoria, in contrast to the situation in Northern Ireland. The apparent absence from Victoria of the pathogenic genotype Hardjoprajitno is a possible explanation. 相似文献
52.
Budgerigars ( Melopsittacus undulatus ) from two different breeding colonies were found to have Giardia infection. Light microscopy, scanning electron microscopy and in-vitro and in-vivo studies confirmed the species was G psittaci . Chicks were clinically affected and showed signs of retarded growth, dehydration and diarrhoea. The faeces of adult birds treated with metronidazole in drinking water were negative for Giardia 5 days after treatment. Megabacteria were also found in adult birds but were not treated. This study extends the known host range for Giardia in Australia to include budgerigars. 相似文献
53.
注射用头孢呋辛钠的安全性试验研究 总被引:1,自引:0,他引:1
通过试验研究对注射用头孢呋辛钠的安全性进行评价。采用豚鼠和家兔分别进行本品的全身用药过敏性、血管和肌肉局部刺激性及家兔红细胞体外溶血性试验研究。结果显示本品对豚鼠无明显全身过敏性、静脉注射对家兔耳缘静脉无明显局部刺激性、对家兔肌肉注射给药无明显局部刺激性、对家兔红细胞无明显体外溶血性。表明本品的各项安全性均良好,为实际应用提供了有力依据。 相似文献
54.
Emma-Louise COLE James J WAGGITT Anders HEDENSTROM Marco PIANO Mark D. HOLTON Luca B
RGER Emily L. C. SHEPARD 《Integrative zoology》2019,14(1):4-16
Animal‐attached technologies can be powerful means to quantify space use and behavior; however, there are also ethical implications associated with capturing and instrumenting animals. Furthermore, tagging approaches are not necessarily well‐suited for examining the movements of multiple individuals within specific, local areas of interest. Here, we assess a method of quantifying animal space use based on a modified theodolite with an inbuilt laser rangefinder. Using a database of >4200 tracks of migrating birds, we show that detection distance increases with bird body mass (range 5 g to >10 kg). The maximum distance recorded to a bird was 5500 m and measurement error was ≤5 m for targets within this distance range: a level comparable to methods such as GPS tagging. We go on to present a case study where this method was used to assess habitat selection in seabirds operating in dynamic coastal waters close to a tidal turbine. Combining positional data with outputs from a hydrographic model revealed that great cormorants (Phalacrocorax carbo) appeared to be highly selective of current characteristics in space and time, exploiting areas where mean current speeds were <0.8 m·s?1 and diving at times when turbulent energy levels were low. These birds also oriented into tidal currents during dives. Taken together, this suggests that collision risks are low for cormorants at this site, as the 2 conditions avoided by cormorants (high mean current speeds and turbulence levels) are associated with operational tidal turbines. Overall, we suggest that this modified theodolite system is well‐suited to the quantification of movement in small areas associated with particular development strategies, including sustainable energy devices. 相似文献
55.
A Colling C Morrissy J Barr G Meehan L Wright W Goff LJ Gleeson B van der Heide S Riddell M Yu D Eagles R Lunt S Khounsy Ngo Than Long Pham Phong Vu Nguyen Than Phuong Nguyen Tung W Linchongsubongkoch J Hammond M Johnson WO Johnson H Unger P Daniels JR Crowther 《Australian veterinary journal》2014,92(6):192-199
56.
EUGENE P. STEFFEY VMD PhD Diplomate ACVA & ECVA ROBERT J. BROSNAN DVM PhD Diplomate ACVA LARRY D. GALUPPO DVM Diplomate ACVS KHURSHEED R. MAMA DVM Diplomate ACVA AYAKO IMAI DVM MS LARA K. MAXWELL DVM PhD Diplomate ACVCP CYNTHIA A. COLE DVM PhD Diplomate ACVCP SCOTT D. STANLEY PhD 《Veterinary surgery : VS》2009,38(8):927-933
Objective— To characterize the behavior of horses recovering in the Anderson Sling Suspension System after 4 hours of desflurane anesthesia and postdesflurane intravenous (IV) administration of propofol and xylazine. Study Design— Experimental study. Animals— Healthy horses (n=6), mean±SEM age 12.3±1.8 years; mean weight 556±27 kg. Methods— Each horse was anesthetized with xylazine, diazepam, and ketamine IV and anesthesia was maintained with desflurane in O2. At the end of 4 hours of desflurane, each horse was positioned in the sling suspension system and administered propofol–xylazine IV. Recovery events were quantitatively and qualitatively assessed. Venous blood was obtained before and after anesthesia for biochemical and propofol analyses. Results— Anesthetic induction and maintenance were without incident. Apnea commonly accompanied propofol administration. All horses had consistent recovery behavior characterized by a smooth, careful, atraumatic return to a standing posture. Conclusions— Results of this study support careful, selective clinical use of desflurane, propofol–xylazine, and the Anderson Sling Suspension System to atraumatically transition horses with high anesthetic recovery risk to a wakeful standing posture. Clinical Relevance— Technique choices to facilitate individualized, atraumatic recovery of horses from general anesthesia are desirable. Use of IV propofol and xylazine to transition horses from desflurane anesthesia during sling recovery to standing posture may facilitate improved recovery management of high‐injury risk equine patients requiring general anesthesia. 相似文献
57.
Dermatoses caused by infestations of immature Ixodes spp. on dogs and cats in Sydney, Australia 总被引:1,自引:1,他引:0
Infestations of larval and nymphal Ixodes spp. were identified in 16 dogs and 16 cats from several small animal clinics in Sydney. Cases occurred in late summer or autumn, peaking in February, and were seasonally recurrent in some individuals. Clinical signs of infestation included a papular dermatitis and irritation or pruritus that ranged from severe to mild or absent. The distribution of tick attachment tended to be cranial and ventral, with the face, legs, axillae and ventrum the most commonly affected sites. The estimated number of ticks in each infestation varied from less than 10 to more than 100. Basic morphological examination of ticks collected from affected animals was performed by attending veterinarians using light microscopy, and larvae and nymphs belonging to the Ixodes genus were identified. Ticks collected from 17 animals and submitted to the Department of Medical Entomology, Westmead Hospital were putatively identified as I. trichosuri (57%) and I. holocyclus (25%) larvae. Histopathological samples of attachment sites collected from three dogs and one cat were characterised by ticks attached in well-demarcated invaginations of the skin ('tick craters') associated with variable epidermal and/or dermal necrosis, focal eosinophilic intraspinous pustules, mild to marked eosinophilic and neutrophilic, superficial to deep, dermal perivascular to interstitial inflammation, and moderate to marked superficial dermal oedema and red cell extravasation. A range of topical acaricidal preparations, including fipronil and synthetic pyrethroids, were used for treatment. 相似文献
58.
59.
60.
Trichoderma cultures were isolated locally from soils and screened on potato-dextrose agar against Rhizoctonia solani. Several isolates of T. harzianum reduced the growth and build up of populations of R. solani and to a lesser extent of Fusarium solani in sterilized soil. In field experiments, biological control of R. solani and F. solani infections in tobacco transplants was achieved by adding T. harzianum (T77) to methyl-bromide-fumigated seedbeds before seed was sown. There was also increased growth and leaf yield that was not directly correlated with disease control. Triadimenol fungicide, integrated with the Trichoderma treatment, enhanced disease control. 相似文献