Results 11 to 20 of about 6,319 (218)
2017年冬季,为检验杭州动物园黑猩猩冬季饲料是否在行为和营养上满足需求,粗略计算黑猩猩冬季饲料营养成分,与日本、阿根廷、上海野生动物园、国内动物园的日粮营养成分对比,同时参照中国营养学会推荐的人类膳食营养平衡标准和AZA黑猩猩饲养指南,结合杭州动物园黑猩猩实际生长发育情况,评估黑猩猩冬季饲料。结果显示,杭州动物园冬季黑猩猩饲料在营养成分上,总能量(105—159 MJ),高于黑猩猩维持能量(711—8372 MJ),蛋白质(79—119 g)、脂肪(55—83 g)、碳水化合物(401—602
刘龙海江志楼毅黄淑芳应志豪陈玎玎龚利洋俞红燕
doaj
From demonstrative to definite and beyond: the case of nage in spoken Taiwan Mandarin
When demonstrative pronouns undergo grammaticalization, they have regularly been shown to evolve into definite or specific articles (Lehmann 2002, De Mulder & Carlier 2001). In a synchronic perspective, it has also been shown that for some languages, demonstrative determiners are not restricted to deictic or anaphoric functions, but may extend their ...
openaire +3 more sources
在现有褐马鸡(Crossoptilon mantchuricum)谱系调查基础上,2019年发放问卷,对我国褐马鸡种群和饲养现状进行研究。结果表明:截至2020年6月30日,中国圈养褐马鸡种群共有存活个体121只,饲养在全国7个单位。种群统计学和遗传学分析结果显示,圈养种群建立者11只,潜在建立者12只,835%的个体处于繁殖年龄,种群未来发展具有较大潜力;圈养个体存活率随年龄增长而下降;在存活时间和繁殖间隔方面,雄性均比雌性长;种群中28%个体的祖先得到确定,人工种群存在一定程度的近亲繁殖 ...
张丽霞孙冬婷胡昕朱向博张敬晁青鲜卫泽珍张成林
doaj
Preparation and hypoglycemic activity of selenium-enrichedasini corri colla-inulin chewable tables [PDF]
以阿胶、菊粉、富硒卡拉胶等为原料,依次经过原料的干燥、混匀、制软材、干燥、过筛、压片后制得富硒阿胶-菊粉咀嚼片。本文概述了富硒阿胶-菊粉咀嚼片的制备工艺流程并对优化过程进行描述,研究了其降血糖活性功能。研究结果表明:阿胶、菊粉、富硒卡拉胶、硬脂酸镁的添加量分别为24.5%、73.5%、1%、1%,以95%的乙醇溶液为黏合剂,可制得表面光滑、色泽均匀,独特风味的富硒阿胶咀嚼片。小鼠降血糖实验结果表明,样品组小鼠在灌胃处理30 d后随机血糖有显著降低,与二甲双胍作用相当,因而该产品具有显著降低血糖水平功效。
史雪洁, 朱晓振, 衣悦涛
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对行为的定义和描述是定量开展行为学研究的前提与基础。通过对人工饲养环境下长江江豚行为的观察、记录和分析,定义和描述了长江江豚近40种行为。在此基础上,初步构建了人工饲养环境下长江江豚行为学研究所必需的行为谱,由活跃的水面行为、玩耍、索食、社群行为、性行为、休息、摩擦、杂类八个类别组成 ...
肖建强,王丁
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When and why to give shorebirds a head start
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson +4 more
wiley +1 more source
Establishment of An Effective System to Develop Avian Polyclonal Antibodies and Its Primary Application [PDF]
小鼠单克隆抗体技术已成为生物医药领域不可或缺的研究工具,在疾病的诊断和治疗领域也得到广泛应用。然而,由于小鼠自身免疫系统的局限,某些抗原或表位,特别是同为哺乳动物的人体抗原在小鼠体内可能因为种属相近而不易产生好的免疫应答,给制备相应的小鼠单克隆抗体造成一定的困难。因此,有必要基于其它种属动物开发新的抗体制备技术。禽源抗体技术也称卵黄抗体技术(简称IgY技术),是用免疫原刺激禽类动物,产生相应的特异性抗体,该抗体会转运、储存在卵黄中,经特殊的提取技术,可从卵黄中获得大量特异性的多克隆抗体的一种抗体制备技术。
康雅虹
core
Extent of threats to marine fish from the online aquarium trade in the United States
The global marine aquarium hobby is a multibillion‐dollar industry, largely driven by demand from the United States. Much of this trade occurs online. We web scraped 4 major US‐based e‐commerce platforms selling marine aquarium fish to determine the retail price and source (wild capture, aquaculture, or both) of 13 families of ray‐finned marine fish ...
Bing Lin +6 more
wiley +1 more source
The pathophysiology of meibomian gland dysfunction related ocular surface diseases and the molecular mechanism [PDF]
第一部分:睑板腺功能障碍诱导的小鼠干眼动物模型的建立 目的:睑板腺功能障碍(MGD)是引起蒸发过强型干眼最常见的病因,但是MGD引起的眼表面病变的病理生理过程目前还知之甚少。本研究的主要目的是建立蒸发过强型干眼的动物模型,并观察该类型干眼的眼表病理变化过程。 方法:用裂隙灯显微镜观察外异蛋白基因(EctodysplasinA,EDA)突变鼠(Tabby鼠)的眼表病变过程,用荧光素钠染色方法检测Tabby鼠的角膜上皮缺损状况,用酚红棉线检测小鼠的水性泪液分泌,对角膜和眼睑进行H&E染色和油红染色 ...
李三明
core
ABSTRACT Background Recurrent otitis externa (OE) episodes commonly affect dogs with canine atopic dermatitis (cAD) despite ongoing cAD treatment. Objective To determine if a therapeutic diet with active ingredients targeting the skin barrier and allergy pathways reduces the incidence rate of OE.
Adrian Watson +5 more
wiley +1 more source

