Results 51 to 60 of about 5,097 (168)
Integrative Conservation, Volume 3, Issue 4, Page 353-367, December 2024.The One Plan Approach to Conservation of the International Union for Conservation of Nature highlights the importance of combining on‐site conservation actions with captive breeding efforts. Among vertebrates, amphibians are one of the groups with the highest proportion of species threatened with extinction.
Marie Borgwerth +6 more
wiley +1 more source
Design and Implementation of Pork Safety Traceability System Based on Open-source Framework [PDF]
, 2015 社会发展和人们生活水平日益提高，国内个别食品安全事件的出现，政府和消费者都开始重视畜产品质量安全问题。猪肉的生产在畜产品中占有较高的比例，而我国作为最大的猪肉消费量国，近年来食品安全问题频发，因此，研究畜产品质量管理体系，进一步提高猪肉生产质量，具有重大的理论价值和必要的现实意义。然而，由于供给体系的复杂化以及缺乏生产信息的有效传递方式，猪肉安全生产、监督和管理面临着很多问题。可追溯系统被认为是猪肉食品质量安全管理的有效手段，已经受到消费者及食品质量监管部门的普遍关注 ...
王金锋
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Conservation Biology, Volume 38, Issue 5, October 2024.Abstract Illegal poaching and overexploitation for the international pet trade are among the greatest threats to freshwater turtles in Southeast Asia. Expanding consumer research in China is crucial to filling knowledge gaps about the scale and structure of illegal trade and developing audience‐targeted and relevant interventions that may reduce demand
Wuji Zheng +10 more
wiley +1 more source
野生动物学报, 2015 目前,在石林龙晖野生动物科研中心有限公司饲养场里有80头犀牛,在人工圈养时,每头犀牛的采食量也不尽相同,采食量的多少受很多方面的影响,比如年龄、性别、体重、活动量、饲草的适口性等。通过长时间的观察,大多数犀牛更喜欢采食黑麦草、苜蓿干草、玉米秸秆、野豌豆等饲草,所以在饲养场里我们以这几种饲草作为主要饲草来对白犀牛进行人工饲喂。本文通过白犀牛日采食量和营养需要量来确定其合理的饲喂方案,这种方法更有利于白犀牛的科学饲养,在保证其日采食量的基础上,满足其营养需要,使白犀牛达到健康标准。
李佳晶 马成志 王 宇
doaj
Veterinary Dermatology, Volume 35, Issue 5, Page 479-491, October 2024.Background – Lop‐eared rabbits may be predisposed to otitis externa (OE) as a consequence of their ear conformation. Although otoscopy, otic cytological evaluation, and culture are valuable tools in dogs and cats, published data on rabbits remain lacking. Hypothesis/Objectives – This study aimed to assess the utility of otoscopy and cytological results
Nikoleta Makri +8 more
wiley +1 more source
Study on Remote Monitoring System for Fish Activity and Water Quality Environment in Offshore Fish Cage [PDF]
, 2016 在全球海洋渔业资源日益衰减的今天，深水网箱以其抗风浪、耐海流能力强、养殖容量大、高产高效、环保等优势成为现代耕海牧渔的发展方向。深水网箱养殖过程中，由于网箱离岸远，范围广，水体浑浊，不容易观察鱼群活动状态，同时也往往难以把握合适的投饲量，投饵过少将影响鱼类生长健康，过多则增大养殖饲料成本，同时剩余饵料又会污染环境。为了进行鱼群状态监测和避免饲养投喂的随意性和盲目性，急需加强深水网箱鱼群状态与水质环境监测，为正确判断鱼群食欲、科学进行投饲提供重要参考依据。本文根据深水网箱养殖环境的特殊要求 ...
邵志文
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Veterinary Dermatology, Volume 35, Issue 5, Page 524-535, October 2024.Background – Cytological detection of acantholytic keratinocytes (acantholytic cells [AC]) helps to identify canine pemphigus foliaceus (cPF) yet AC also occurs in superficial pyoderma (SP), the main differential diagnosis. Hypothesis/Objectives – To compare selected cytomorphological features of cPF and SP and to establish cytological diagnostic ...
Tyler S. Spriggs +3 more
wiley +1 more source
野生动物学报, 2009 棕熊在野生动物园中大种群混养,饲养管理难度大,结合秦皇岛野生动物园这几年的饲养管理经验,从馆舍设计、相残行为、饲养繁殖等几个方面难点进行剖析,以利于更好地提高棕熊大种群混养水平。
温学锋
doaj
Experimental study on effect of bone marrow mesenchymal stem cells on the function of severe fatty liver graft [PDF]
, 2015 第一章：大鼠骨髓间充质干细胞的分离、培养与鉴定 目的体外培养活性好、纯度高的骨髓间充质干细胞 方法采用密度梯度离心法分离培养骨髓间充质干细胞，采用流式细胞仪鉴定其表面抗原的表达情况，用成软骨试剂、成脂试剂诱导BMSCs分化成软骨细胞、脂肪细胞。 结果获得细胞具有明显的贴壁性，其细胞表面高表达CD44、CD90、CD29抗原分子，低表达CD45、CD34、CD11b抗原分子。成软骨诱导分化3周，BMSCs即可分化成软骨细胞，成脂诱导分化2周，即可分化成脂肪细胞。 结论密度梯度离心法可以获得活性好、纯度高 ...
范洪凯
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Veterinary Dermatology, Volume 35, Issue 5, Page 500-507, October 2024.Abstract Background Canine atopic dermatitis (cAD) is a hereditary, generally pruritic and predominantly T‐cell‐driven inflammatory skin disease, involving an interplay between skin barrier abnormalities, allergen sensitisation and microbial dysbiosis.
L. Widorn +2 more
wiley +1 more source