共查询到19条相似文献,搜索用时 531 毫秒
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金丝猴(Rhinopithecusroxellanae)是中国特有的一类保护动物,人工喂养已有多年历史,先后有近千只金丝猴从野外被捕来喂养。但1992年统计,全国总共只剩下不到100只,各单位纷纷向林业部申请,希望从野外补充种源。为了减少对野外金丝猴的捕捉压力,既维持就地保护原则又能满足研究和展览的需要,建立人工繁殖种群,实现迁地保护是十分必要的。我们自1987年至1992年先后从陕西省、四川省共引种1互只川金丝猴(4:7)进行驯养繁殖,到1994年止共繁出12只(6:6),形成了人工繁殖群,其中1988年出生的雌猴已经开始了子二代的繁殖。现报告… 相似文献
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葛云法尹兆正丁良冬俞建昌邵丽霞章金泉方盛国 《野生动物》2014,(1):81-84
为做好朱鹛的迁地保护工作,进行人工繁育是短时间内提高种群数量的最有效措施。浙江省德清珍稀野生动物繁育研究中心自2008年从陕西野生动物救护中心引入5对朱鹦,通过5a努力,目前存栏数已达118只,取得了一些成绩,同时也积累了一些经验教训。本文以朱鹦浙江种群的人工繁育工作实践为基础,结合现有的相关文献,对浙江省德清珍稀野生动物繁育研究中心2008—2012年饲养的138只朱鹃雏鸟的非传染性疾病进行了统计分析,同时阐述了其发病原因和防治措施。主要疾病包括:腿部疾病4种(10例,占7.25%):船桨腿、卷曲趾、关节肿大、皮下气肿;头颈部疾病3种(15例,占10,87%):交叉喙、长短喙、歪脖子;还有其他疾病3种(5例,占3.62%):育雏室小气候控制不良引发的疾病、胚胎病或孵化不良引发的疾病、不明原因死亡的疾病。通过分析病因,提出防范措施,为后续的育雏工作提供指导,以避免类似的疾病再次发生,促进朱鹦人工种群的发展,对其他濒危野生鸟类的人工复壮也有一定的指导意义。 相似文献
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大鸨(Otis tarda)隶属鹤形目鸨科鸟类,分为两个亚种,即指名亚种(Otistarda tarda)和东方亚种(也称普通亚种)(Otis tarda dybowskii),其中指名亚种主要分布于欧洲、中亚和中国新疆,东方亚种主要分布俄罗斯东南部、蒙古草原和我国东北、华北及黄河和长江流域。 据统计截止2001年,国内有关大鸨研究报导近40篇,多见于野外生态、人工饲养及解剖、生理、生化等方面的研究。大鸨在人工饲养条件下繁殖,迄令尚未见有报导。2001年,哈尔滨动物园在人工饲养条件下,首次获得了笼… 相似文献
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新疆北部(北疆)几种苜蓿属植物遗传结构的研究 总被引:5,自引:1,他引:4
以17份国内外紫花苜蓿栽培品种为对照,对新疆北部地区28份四倍体苜蓿属植物即紫花苜蓿(Medicagesativa)黄花苜蓿(M.falcata)多变苜蓿(M.varia)的遗传结构进行研究,结果表明,四倍体种群为外繁育类型,其总遗传变异的90%以上来源于各群内部,但由于地理或生殖隔离等因素导致个体别群表现出内繁育衰退现象,因此,应加强对这些种群的就地保护和迁地保护。 相似文献
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笼养大鸨在夏秋季节行为活动的时间分配和活动节律 总被引:1,自引:0,他引:1
采用瞬时扫描法观察记录笼养大鸨在夏秋两季的行为日节律,利用t检验、单因素方差分析和双因素方差分析法探讨季节对大鸨行为的影响,并分析不同年龄组间大鸨行为的差异性。研究结果表明:大鸨行为分配以休息为主(夏70.02%,秋69.52%),其次为游走和理羽。夏秋大鸨行为日节律在静站(F=44.44)和趴卧(F=64.62)两行为存在明显差异,不同年龄组间休息行为(F=315)差异极显著。 相似文献
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中国是世界上动植物种类最丰富的国家之一,但国内对野生两栖爬行动物的掠夺性利用还在发展;国内野生两栖爬行动物资源在这种疯狂的掠夺下已经接近枯竭,多数物种处于濒危状态。动物园作为野生动物异地保护的重要场所,饲养繁殖野生动物的最终目的是实现濒危物种的再引入,恢复野外种群数量.出于以上目的,动物园中两栖爬行动物的饲养管理方式有别于爬虫爱好者单纯的满足对宠物的要求和增殖牟利追求。这种区别不仅表现在选择动物种类方面,更多的体现在丰容概念的引入及工作方法的应用:营造合理的饲养环境、饲养环境小气候的周期性变化、设施的丰容、群体的调整、食物及供给方式的变化、对繁殖行为的鼓励等。这些丰容手段对保持两栖爬行动物的自然行为,从而保证动物的野外生存能力具有重要作用. 相似文献
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A serial radiographic study was conducted on seven houbara bustard (Chlamydotis undulata macqueenii), 10 rufous-crested bustard (Eupodotis ruficrista), four white-bellied bustard (Eupodotis senegalensis) and eight kori bustard (Ardeotis kori) chicks to determine the growth rate of long bones and to establish radiographic standards for assessing skeletal maturity. The growth rates of the tarsometatarsus and tibiotarsus in the bustard species investigated were similar to those in domestic fowl (Gallus domesticus) and some long-legged avian species. Maturation of long bones occurred earlier in houbara bustards compared with rufous-crested, white-bellied and kori bustards. 相似文献
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Guillaume Le Loc’h Mariette F Ducatez Christelle Camus-Bouclainville Jean-Luc Guérin Stéphane Bertagnoli 《Veterinary research》2014,45(1)
Implementation of conservation breeding programs is a key step to ensuring the sustainability of many endangered species. Infectious diseases can be serious threats for the success of such initiatives especially since knowledge on pathogens affecting those species is usually scarce. Houbara bustard species (Chlamydotis undulata and Chlamydotis macqueenii), whose populations have declined over the last decades, have been captive-bred for conservation purposes for more than 15 years. Avipoxviruses are of the highest concern for these species in captivity. Pox lesions were collected from breeding projects in North Africa, the Middle East and Central Asia for 6 years in order to study the diversity of avipoxviruses responsible for clinical infections in Houbara bustard. Molecular and phylogenetic analyses of 113 and 75 DNA sequences for P4b and fpv140 loci respectively, revealed an unexpected wide diversity of viruses affecting Houbara bustard even at a project scale: 17 genotypes equally distributed between fowlpox virus-like and canarypox virus-like have been identified in the present study. This suggests multiple and repeated introductions of virus and questions host specificity and control strategy of avipoxviruses. We also show that the observed high virus burden and co-evolution of diverse avipoxvirus strains at endemic levels may be responsible for the emergence of novel recombinant strains. 相似文献
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Participation in conservation programs is often viewed as a necessity, but understanding of this participation is limited. This research takes a different approach by also examining participation in non-conservation-related activities. Questionnaires (N = 339) were administered in four Brazilian coastal communities where the national sea turtle conservation project conducts monitoring and outreach. Employing social capital as a conceptual framework, measurements included participation in civic, community, and social activities along with group participation and collective action. Confirmatory factor analysis was used for validating measures of social capital and conservation perceptions. Structural equation modeling indicated that social capital has a positive relationship with participation in sea turtle conservation, suggesting that general levels of participation and community norms of participation could be just as influential as conservation perceptions to engage communities in conservation. Information gained by deconstructing participation may be used to design and target conservation programs, improving overall participation. 相似文献
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China holds the greatest proportion of the snow leopard's (Panthera uncia) global range and is central to their conservation. The country is also undergoing unprecedented economic growth, which increases both the threats to the snow leopard and the opportunities for its conservation. In this paper we aim to review published literature (from 1950 to 2014) in English and Mandarin on snow leopard ecology and conservation in China in order to identify thematic and geographic research gaps and propose research priorities. We first retrieved all published items that considered snow leopards in China (n = 106). We extracted from these papers 274 reports of snow leopard presence in China. We then reviewed a subset of papers (n = 33) of this literature, which specifically focused on snow leopard ecology and conservation within China. We introduced a thematic framework that allows a structured and comprehensive assessment of findings. This framework recognizes 4 critical and interrelated topics underpinning snow leopard ecology and conservation: habitat (distribution and protected area coverage); prey (distribution and abundance, predator–prey relationships); human interactions (hunting and trade, livestock interactions and conflicts); and the underlying policy context. Significant gains in knowledge as well as research gaps and priorities are discussed with reference to our framework. The modest quantity and limited scope of published research on the snow leopard in China calls for a continued and intensified effort to inform and support national conservation policies. 相似文献
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本研究取矮脚油鸡7日龄胚胎作为试验材料,用MEM、全培养基和PBS 3种不同的液体对鸡胚组织进行保存,同时在不同保存温度条件下按不同保存时间梯度,采用组织块贴壁培养法进行体外细胞培养。对细胞的保存液变化,细胞形态、细胞生长等情况进行研究,分析样品保存条件对细胞体外培养和细胞系构建的影响。结果发现,4 ℃保存的组织块培养效果明显优于室温保存;无论在4 ℃或常温,基础培养基保存的组织块培养效果明显优于保存液,全培养基效果最好。常温保存48 h以内3种保存液培养效果差别甚微,48 h后培养效果均急剧下降,96 h后保存在PBS中的组织失活,未长出细胞。本研究结果为建立细胞系采集样品的保存提供了一定的参考。 相似文献
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绿孔雀曾广布于中国南方多个省份,包括湖南、湖北、四川、广东、广西及云南等省区,现仅分布于云南局部地区,其种群数量不断减少,种群逐渐分散、衰退,根据最新调查结果显示,中国现存野生绿孔雀数量仅剩约235~280只,已被云南省列为极危(CR)物种。绿孔雀数量及分布区急剧缩减的原因主要包括人类的干扰和猎杀、栖息地侵占,破坏和斑块化等因素。科研人员及保护工作者在保护区的建设、绿孔雀人工繁育等方面保护绿孔雀野生种群,扩大人工种群。目前,涉及绿孔雀保护工作的保护区达十余个,已全面覆盖绿孔雀栖息地。本文概述了绿孔雀的形态、生态习性、繁殖行为、亚种分化及地理分布等生物学特征,分析绿孔雀濒危现状及致危因素,整合目前立法保护、就地保护、易地保护等保护措施,为将来的保护及科研工作提出了建议和展望。 相似文献