Results 11 to 20 of about 2,290,951 (150)
南非海狮是目前国内外动物园、水族馆中饲养比较普遍的动物,但经常出现一些细菌性、病毒性和寄生虫等疾病,在海狮健康状况监测和疾病诊断中需要有生理生化指标正常值作为参考。但目前南非海狮的正常生理生化指标报道较少。杭州动物园先后对6只成年南非海狮进行采血,共收集20个(12雄8雌)血液常规样本测定了15项主要生理指标和6个(4雄2雌)血清生化标本对18项主要生化指标进行检测。在测定项目中WBC、RBC、MCH、MCV、RDW、HCT、MPV、PCT、ALT、TP、ALB、TBIL、GLU、Ca2+、Pi、Mg2+
黄淑芳, 胡新波, 江志
doaj +2 more sources
土壤干层是黄土高原普遍存在的特殊土壤水文现象,研究其现状、成因、防治、调控措施等对科学认识区域植被承载力、土地生产力以及低效林草改造和可持续植被建设等有重要理论与生产指导意义,而合理通用评判指标与分级标准是开展土壤干层研究的基础。目前黄土高原土壤干层尚无统一评判指标与分级标准,给区域土壤干层研究带来困难。本文在已有研究成果的基础上,提出用土壤有效水饱和度/不饱和度作为土壤干层评判指标,并给出其分级标准。该评判指标计算简单,具通用性和可比性,可望成为土壤干层的通用评判指标。
段建军 +4 more
doaj +3 more sources
为了解圈养白犀牛的血液生化指标,试验以7头不同年龄、性别的云南石林圈养白犀牛为研究对象,分别检测其17项血液生化指标,采用SPSS软件对检测数据进行比较。结果显示公母白犀牛血液生化指标中除尿酸(UA)差异极显著外,其余指标均不显著; 未成年体和成年体白犀牛血液生化指标中除钙(Ca)差异显著外,其余指标均不显著; 对比克鲁格国家公园放养方式的白犀牛血液生化指标数据参数,发现白蛋白(ALB)、尿素氮(BUN)、天门冬氨酸氨基转移酶(AST)和碱性磷酸酯酶(ALP)均表现为圈养状态显著(ALB,P=0.021;
王 宇 杨启鸿
doaj +1 more source
血液生理指标能反映动物机体的机能。本文首次测定了松鼠猴的血液生理值,并与恒河猴的指标做了比较。结果显示,松鼠猴的红细胞、血小板、血红蛋白、红细胞比容和平均血红蛋白浓度5种指标都明显高于恒河猴:而白细胞和平均红细胞体积都略低于恒河猴。松鼠猴的白细胞分类记数结果显示,松鼠猴血液中中性粒细胞和淋巴细胞占97.5%,单核细胞占2.0%;嗜酸性粒细胞为0.2%,几乎无嗜碱性粒细胞。这些结果可作为松鼠猴饲养管理和疫病检测判断的参考依据。
周世贤 +5 more
doaj +2 more sources
Reported annual per‐capita harvest of muskrats (PCHM) decreased as wetland complexity (total number of wetland patches) decreased in 13 state and federal wetland areas in the Midwest, USA. Our results support the hypothesis that regional‐scale declines in the abundance of muskrats are likely associated with the losses to wetland habitats throughout the
Tim L. Hiller +5 more
wiley +1 more source
Fear of Feral Predators Alters Nutritional Responses in Desert Lizards 对野生捕食者的恐惧改变了沙漠蜥蜴的营养响应
Conservation actions meant to support vultures in the Thar desert of India attract large numbers of feral dogs, endangering native prey including the vulnerable Saara hardwickii. Lizards in high‐risk areas eat less food and do not change diet composition but retain more carbon and nitrogen from their diet.
Mihir Joshi, Dror Hawlena, Maria Thaker
wiley +1 more source
Comprehensive framework for assessing and optimizing existing research networks
Abstract Conservation, monitoring, and research networks, or collections of ecological research sites unified under a common mission of data collection or a research mission, are essential infrastructure for understanding large landscapes. However, most networks developed opportunistically over decades rather than through systematic design, creating ...
Alyson East +2 more
wiley +1 more source
以水提法从黄精(Polygonatumsp)中得到的粗多糖成分(PP)进行了老龄大鼠的衰老生理生化指标测定试验.两种剂量的PP灌喂老龄大鼠1mo后,测定其12项衰老生理生化指标:胸腺指数和脾脏指数,外周血淋巴细胞ANAE活性,红细胞、视网膜、晶体核、晶体皮质的SOD活性,心脏、血浆中过氧化脂质含量,肝脏、肾脏中脂褐质含量及脑中B型单胺氧化酶活性.结果表明:除胸腺指数、血浆中过氧化脂质含量无显著性变化外,其他10项指标均有明显的改善作用 ...
赵红霞,蒙义文,曾庆华,陈桃林,董道权,蒲蔷 +1 more
core
Advancing conservation breeding programs for marine invertebrates
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam +3 more
wiley +1 more source
Twelve principles for successful governance of community‐based coastal marine restoration
Abstract Global agreements, such as the Global Biodiversity Framework, call for urgent, large‐scale action to halt biodiversity loss through a whole‐of‐society approach. Community‐based restoration can play a crucial role in achieving this goal, yet there remains limited understanding of what makes these projects effective and sustainable.
Michelle M. Holian +2 more
wiley +1 more source

