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Animal play and animal welfare 总被引:1,自引:0,他引:1
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Baha Latif Subramaniam Vellayan Effat Omar Suliman Abdullah Noryatimah Mat Desa 《The Korean journal of parasitology》2010,48(3):213-217
Sarcocystis sp. infection was investigated in 20 necropsied captive wild mammals and 20 birds in 2 petting zoos in Malaysia. The gross post-mortem lesions in mammals showed marbling of the liver with uniform congestion of the intestine, and for birds, there was atrophy of the sternal muscles with hemorrhage and edema of the lungs in 2 birds. Naked eye examination was used for detection of macroscopic sarcocysts, and muscle squash for microscopic type. Only microscopically visible cysts were detected in 8 animals and species identification was not possible. Histological examination of the sections of infected skeletal muscles showed more than 5 sarcocysts in each specimen. No leukocytic infiltration was seen in affected organs. The shape of the cysts was elongated or circular, and the mean size reached 254 × 24.5 µm and the thickness of the wall up to 2.5 µm. Two stages were recognized in the cysts, the peripheral metrocytes and large numbers of crescent shaped merozoites. Out of 40 animals examined, 3 mammals and 5 birds were positive (20%). The infection rate was 15% and 25% in mammals and birds, respectively. Regarding the organs, the infection rate was 50% in the skeletal muscles followed by tongue and heart (37.5%), diaphragm (25%), and esophagus (12.5%). Further ultrastructural studies are required to identify the species of Sarcocystis that infect captive wild animals and their possible role in zoonosis. 相似文献
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Salka Ndazo Minka Joseph Olusegun Ayo 《Journal of applied animal welfare science : JAAWS》2013,16(3):272-288
This study investigated the effects of 12 hr of road transportation during the hot-dry conditions and the modulating role of ascorbic acid (AA) on the hydration state of goats. Twenty goats who served as treatment goats received oral administration of 100 mg/kg body weight of AA, whereas another 20 control goats received sterile water; thereafter, the goats were loaded and transported. The study determined changes in skin thickness; albumin (Alb); total protein (TP); elimination of the gut content; fecal water; urine specific gravity (SG); and pH before, during, and after the transportation. The result obtained in the control goats showed significant (p < .05) increases in the values of TP, Alb, urine SG, and pH; elimination; and drinking behavior, whereas skin thickness decreased over transportation. In the treatment goats who were administered AA, the changes observed in the values were insignificant (p > .05). In conclusion, 12-hr road transportation of goats induced dehydration, which may affect the welfare and health status of the goats. The administration of AA ameliorated the risk of adverse effects of handling, loading, transportation, and hot-dry conditions on hydration state of goats. 相似文献
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杜艳艳 《中国生物工程杂志》2010,30(4):131-134
美国植物基因组计划(National Plant Genome Initiative,NPGI)于1998年正式启动,该计划在美国国家科学基金会(NSF)的支持下,成立了由美国农业部(USDA)、能源部(DOE)、国立卫生研究院(NIH)、国家科学基金会(NSF)、科学与技术政策办公室(OSTP)、管理与预算办公室(OMB)和美国国际开发署(USAID)等组成的植物基因组跨机构工作组(Interagency Working Group on Plant Genomes,IWG),IWG每5年制定一项5年计划来指导协调基因组研究工作。对1998~2009年期间,美国国家科学基金会(NSF)资助国家植物基因组计划(NPGI)的目标、经费、项目变化情况进行了分析,以期得到某些启示和借鉴。 相似文献
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For decades, Ottawa and Washington have been agreeing to disagree on the question of the legal status of the Northwest Passage. One argument which has been consistently raised on the U.S. side and which has precluded attempts to end the deadlock has been the fear of creating a negative precedent. This article assesses whether U.S. concerns are warranted: could coastal States elsewhere in the world rely on an eventual recognition of Canadian sovereignty over the Northwest Passage to bolster their claims over a local strait? 相似文献
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In this review we present an outline of cytopathology training in the United States, for a non-US readership. 相似文献
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In 1979 the US Fish and Wildlife Service published and adopted a classification of wetlands and deepwater habitats of the United States. The system was designed for use in a national inventory of wetlands. It was intended to be ecologically based, to furnish the mapping units needed for the inventory, and to provide national consistency in terminology and definition. We review the performance of the classification after 13 years of use. The definition of wetland is based on national lists of hydric soils and plants that occur in wetlands. Our experience suggests that wetland classifications must facilitate mapping and inventory because these data gathering functions are essential to management and preservation of the wetland resource, but the definitions and taxa must have ecological basis. The most serious problem faced in construction of the classification was lack of data for many of the diverse wetland types. Review of the performance of the classification suggests that, for the most part, it was successful in accomplishing its objectives, but that problem areas should be corrected and modification could strengthen its utility. The classification, at least in concept, could be applied outside the United States. Experience gained in use of the classification can furnish guidance as to pitfalls to be avoided in the wetland classification process.The US Government's right to retain a non-exclusive, royalty free licence in and to any copyright is acknowledged. 相似文献
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James S. Bielo 《Ethnos》2013,78(3):316-338
In this article, I contribute to the emerging project of the anthropology of Christianity by exploring the subject of born-again personhood. As a nascent field of inquiry, the anthropology of Christianity must delimit what theoretical opportunities exist for comparative research. I argue that a focus on personhood offers a promising series of questions toward this end. To illustrate this claim, I use the case study of one Evangelical Sunday school teacher – Rick Betcher – and his life as a ‘Christian businessman.’ Anthropologists and other scholars have shown great interest in how matters of money figure in the culture of Protestantism. Using Rick's self-designed Sunday school class, The Mind of Christ, I argue that conceptions of personal financial success among born-again Christians are structured by the prevailing model of born-again personhood – the New Mind. 相似文献
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Kimberly Ange‐van Heugten Martin Verstegen Peter R. Ferket Michael Stoskopf Eric van Heugten 《Zoo biology》2008,27(3):188-199
Woolly monkeys (Lagothrix sp.) are threatened species and numerous zoos have failed to sustain successful populations. The most common causes of death in captive woolly monkeys are related to pregnancy and hypertension. The objective of this retrospective study was to evaluate serum concentrations of a large number of captive woolly monkeys to establish baseline means and compare these concentrations with their closest related species to determine potential abnormalities. Serum analyses from 30 woolly monkeys housed at two institutions (Apenheul, The Netherlands and The Louisville Zoo, KY, USA) over 12 yr were collected. The statistical model included gender, age group (young, 0–4 yr of age; middle, 5–9 yr; and old, 10+ yr), and zoological institution. All panel result means were similar to previously reported concentrations for howler (Alouatta sp.) and spider monkeys (Ateles sp.) with the possible exception of alanine aminotransferase and γ‐glutamyl‐transferase being higher, whereas creatinine and phosphorus were lower. The serum glucose mean of 6.7 mmol/L is above the baseline range for humans and spider monkeys. Alkaline phosphatase (ALP), alanine aminotransferase, and sodium (Na) were higher in females and magnesium (Mg) was higher in males (P<0.05). ALP, Mg, and phosphorus were highest (P<0.05) and calcium and sodium tended to be highest (P<0.10) in the oldest animals. Ferritin tended to be highest (P<0.10) in the oldest animals. Albumin, ALP, chloride, Na, and total bilirubin were higher for Zoo A, whereas γ‐glutamyl‐transferase, glucose, and lactate dehydrogenase were lower for Zoo A (P<0.05). Areas of potential woolly monkey health risk were noted and discussed. Future studies are needed to determine free‐ranging serum concentrations to elucidate parameters that contain aberrant concentrations and decrease health status. Zoo Biol 27:188–199, 2008. © 2008 Wiley‐Liss, Inc. 相似文献
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Torbjørn Pedersen 《Ocean Development & International Law》2013,44(1-2):120-135
This article explains the position(s) of the United States in the maritime dispute adjacent to Svalbard. While the United States has regarded Norway's exclusive claim to the natural resources outside Svalbard as everything from “wishful thinking” to legally plausible, Washington maintains that it may have rights under the 1920 Svalbard Treaty to exploit the maritime zones adjacent to the archipelago. The U.S. reservation is the result of assessments and reassessments of legal considerations as well as national interests. 相似文献
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Laura Ozella Irene Carnovale Daniela Pessani 《Journal of applied animal welfare science : JAAWS》2013,16(3):303-309
Nonhuman animals in zoos are exposed to a continuous human presence, which affects their behaviors and welfare. However, little is known about what role the “visitor effect” has on penguins in captivity. The African penguin (Spheniscus demersus) is an endangered species commonly housed in zoos worldwide. The aim of this study was to evaluate whether the abundance of human bathers could reduce the average time spent in the water of a colony of African penguins housed in an exhibit where their pond habitat was adjacent to a swimming pool. Observations were carried out on 7 penguins in the summer of 2009. Data were collected during 3 time periods (Time 1 [T1] = opening of the swimming season, Time 2 [T2] = core of the season, Time 3 [T3] = late season) of 14 days each. The human disturbance caused by bathers strongly reduced the pond use by penguins at T1 and T2, especially when there were large numbers of visitors. However, at T3, we observed that the overall use of the pond by penguins increased, and the average duration of their diving was no longer dependent on the number of visitors. 相似文献
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Joshua Klugman 《Ethnic and racial studies》2017,40(13):2275-2279
In Natasha Warikoo’s account, the “diversity bargain” is widespread among white elite American college students. This bargain is tentative support for preferences for underrepresented minorities in college admissions, conditioned on the admitted minority students providing white students with multicultural experiences that signal elite cosmopolitanism. This essay reviews three possible explanations for the pervasiveness of the diversity bargain: campus experiences with the benefits of diversity; socialization into expectations that elites give lip service to the benefits of diversity; and Warikoo’s methodological and analytical choices. 相似文献
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The endangered red panda (Ailurus fulgens) is held in zoos worldwide. The aim of this study was to examine how red pandas are kept and managed in captivity and to compare it with the management guidelines. Sixty-nine zoos, mainly from Europe but also from North America and Australia/New Zealand, responded to our survey. The results revealed that in general zoos follow the management guidelines for most of the investigated issues. The average enclosure is almost four times larger than the minimum size recommended by the management guidelines, although seven zoos have smaller enclosures. About half the zoos do not follow the guidelines concerning visitor access and number of nest boxes. Other issues that may compromise animal welfare include proximity of neighboring carnivore species and placement of nest boxes. 相似文献
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Nikolai M. Korovchinsky 《International Review of Hydrobiology》2005,90(2):201-208
Two new species of the genus Diaphanosoma, D. oligosetum and D. dorotheae, from Louisiana and North Carolina respectively, are described. The former species has large head with protruding dorsal part, large lanceolate spine on the basipodite's distal outer end, an extremely reduced number of antennal setae, up to six in adult specimens, and unique armament of valve margin. On the whole, it shows the pronounced combination of primitive and specialized morphological traits. D. dorotheae is a member of D. brachyurum species group differing from its other known representatives in presence of a small but very conspicuous spine on the end of proximal segment of antennal exopodite and a variable number of setae (seven or eight) on the distal segment of the branch. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
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美国先进生物燃料技术政策与态势分析 总被引:2,自引:0,他引:2
刘润生 《中国生物工程杂志》2010,30(1):117-122
美国是生物燃料大国,更是先进生物燃料研发强国。美国制定了宏大的生物燃料发展目标,采取了有力的政策支持措施,组织实施了生物质计划,将纤维素乙醇作为目前先进生物燃料研究、开发和示范的焦点,并已着手第三代生物燃料的研发。美国政府十分重视生物燃料的规划分析和部际协调工作,在立足于基础研究和应用研究前沿的基础上,大力推进技术示范与商业化,正努力加速向先进生物燃料转变。 相似文献
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Suman Gupta 《Ethnic and racial studies》2013,36(3):472-475
The purpose of this Research Note is to offer an analysis of the goals and achievements of former President Clinton's Initiative on Race from its announcement in June 1997 through spring 2000. This Initiative was the first attempt in nearly thirty years by a United States' President to seriously and systematically address the issue of \"race\". Three conclusions emerge: first, the Clinton Race Initiative accomplished more than most social scientists and the public are aware of; second, the Initiative is incomplete because the President has not released his own proposed book-length analysis on race; and, third, a number of structural and political factors significantly limited the \"success\" of the Initiative. 相似文献
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农业生态学是生态学的一个分支学科,是生态学原理在农业上的具体应用。美国是世界上最大的农业强国。美国农业的发展,得益于农业生态学的理论指导和农业生态学原理的实践运用。在实地调查与研读有关文献资料的基础上,对美国农业生态学的发展进行了考察与分析,认为:(1)美国农业生态学产生于1928年,至今已有85年的发展历史。美国农业生态学可划分为4个发展阶段,即:起始阶段(1928-1961年)、扩展阶段(1962-1979年)、巩固阶段(1980-1999年)和新发展阶段(2000年-)。(2)美国农业生态学的内涵由起初的一门\"学科(科学)\",逐步向着包括有\"过程\"、\"理念\"、\"方法\"、\"行动\"、\"体系\"、\"运动\"、\"实践活动\"、\"强有力的工具\"等多重涵义的方向发展,农业生态学内涵的深度和广度均得到不断丰富和完善。(3)美国农业生态学的基本内容包括背景(农业生态学国际背景)、理论(农业生态学理论基础)、设计(农业生态系统的优化设计)和管理(农业生态学理论的实践应用)等4部分,美国农业生态学具有4个明显特征——视野的全球性、内容的多样性、体系的灵活性和技术的实用性。(4)未来美国农业生态学将朝着\"高\"(高起点、高标准、高效率、高水平)、\"新\"(新手段、新方法、新技术,新成果、新成效、新进展)、\"长\"(长期观察分析、长期资料积累、长期定位试验)、\"多\"(农业生态学研究与分析采用多点、多地、多样本、多模式、多途径、多指标、多方法)、\"实\"(联系实际、注重实践、讲求实效、展现实绩)的方向发展。 相似文献
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ObjectiveTo assess the socioeconomic predictors of suicide risk among cancer patients in the United States.MethodsCancer patients available within Surveillance, Epidemiology and End Results (SEER) database who were diagnosed between 2000–2010 have been reviewed. Linkage analysis to Census 2000 SF files was conducted to determine area-based socioeconomic attributes. Observed/ Expected ratios were calculated for the overall cohort as well as for clinically and socioeconomically defined subgroups. “Observed” is the number of observed completed suicide cases in the studied cohort; while “Expected” is the number of completed suicide cases in a demographically similar cohort within the United States and within the same period of time.ResultsThe current study reviews a total of 3,149,235 cancer patients (diagnosed 2000–2010) within the SEER database. Regarding socioeconomic county attributes, higher risk of suicide seems to be associated with lower educational attainment (O/E for counties with > 20% individuals with less than high school education: 1.41; 95% CI: 1.35–1.47), poverty rates (O/E for counties with > 5% individuals below poverty line: 1.39; 95% CI: 1.34–1.43), unemployment rates (O/E for counties with >5% families below poverty line: 1.36; 95% CI: 1.31–1.41) and less people living in urban areas (O/E for counties with < 50% individuals living in urban areas: 1.63; 95% CI: 1.50–1.77). On the other hand, risk of suicide seems to be inversely related to a higher representation of foreign-born individuals (O/E for counties with < 5% foreign-born individuals: 1.56; 95% CI: 1.47–1.65); and inversely related to a higher representation with recent immigrants to the US (O/E for counties with < 5% recent immigrants: 1.33; 95% CI: 1.29–1.38).ConclusionsCancer patients living in a socioeconomically vulnerable environment (lower educational status, poverty, and unemployment) seem to have higher suicide risk compared to other cancer patients. 相似文献