查询词典 crucian carp

The RAPD results illustrate that the phylogenetic relationship betweenBothriocephalid tapeworm parasitic in Grass carpCtenopharyngodon idellus(C.et V.and Common carp(Cyprinus carpio L.)from different regions ofChina is infraspecific with noticeable variance bwtween them.Thephylogenetic trees based on the 3 sequences analyses above are constructed,which show the following relationships:Bothriocephalid tapeworms fromGrass carp,Common carp and Luciobrama are found to be monophyletic,and are very close to Bothriocephalus opsariichthydis,but are divergent toanother monophyletic group comprising Bothriocephalid tapeworms fromZacco,Hemiculter and Leuciscus.On the basis of phylogenetic reconstruction,autapomorphic species conceptis used in species delimitation suitablefor determining four species in the present study:B.acheilognathi,B.opsariichthydis,and two other bothriocephalids parasitic respectively inHemiculter and Leuciscus.It is also deduced that the differentiation time ofBothriocephalid tapeworms parasitic in cyprinids is earlier than that of theirhosts,and the most recent specification happened about one million yearsago.Key words Bothriocephalid tapeworm Molecular Systematics

具体成果有：通过RAPD分析探明了我国不同地理分布的草、鲤鱼头槽绦虫的亲缘关系属于种下水平，并存在较高变异；通过基因合并分析重建头槽绦虫的系统发育关系，表明草鱼、鲤鱼及鯮鱼头槽绦虫是单系群，它们与马口鱼头槽绦虫亲缘关系较近，而与〓条、宽鳍鱲及雅罗鱼头槽绦虫构成的另一单系群亲缘关系较远；在此基础上，提出符合头槽绦虫种的界定的独征物种概念，据此确定鲤科鱼类寄生头槽绦虫的四个种：鱊头槽绦虫，马口鱼头槽绦虫，以及另两种分别寄生于〓条和雅罗鱼的头槽绦虫：根据上述研究推断鲤科鱼类寄生头槽绦虫的分化年代早于其宿主，最近的一次物种形成距今约一百万年左右。

Long-distance PCR was used to amplify the β-actin gene for black carp based on the β-actin gene sequences of Cyprinidae. Construct of EGFP expression system containing 5'UTR of β-actin gene for black carp was transferred into zygotes of mud loach and COS-7 cells and the results showed that 5'UTR of β-actin gene for black carp could be used as the promoter of the"all-fish"transgene.

基于鲤科鱼类Beta-肌动蛋白基因序列，采用长片段PCR技术，克隆了青鱼β-actin基因DNA片段，并构建了青鱼β-actin基因5'启动调控区绿色荧光蛋白表达载体，通过显微注射泥鳅胚胎和COS-7细胞转染实验，证明了所克隆的青鱼β-actin基因5'启动调控区具有启动调控功能，并用之来构建&全鱼&基因的启动子部分。

Fish, fish species have a large economic grass carp, silver carp, bighead carp, bream fish, tilapia tilapia, Nile tilapia, Colossoma brachypomum, rainbow trout rainbow trout, salmon, Russian sturgeon, fish Xiangyun, grass beard catfish, catfish the United States and other big people.

鱼类，大型经济鱼类品种有草鱼、鲢鱼、鳙鱼、鲂鱼、吴郭罗非鱼、尼罗罗非鱼、淡水白鲳、红鳟彩虹鳟、三文鱼、俄罗斯鲟、湘云鱼，草胡子鲇、美国大口人鲶等。

The release to the rulers of China's freshwater fish species,"the four fish"-based, grass carp to control aquatic plants, silver carp and bighead carp can be swallowed water plankton, herring at the bottom of the water body may limit the habitat of animals, so that can not only improve the the aquatic environment, but also can improve water fish production.

这次放流以我国淡水鱼类的当家品种&四大家鱼&为主，草鱼可以控制水草，鲢鱼和鳙鱼可以吞食水体中的浮游生物，青鱼可以限制水体底部的栖息动物，这样不仅能改善水生态环境，而且可以提高水体鱼的产量。

The activities of protease in the individuals that fed on worm are higher than those fed on the flesh of silver carp and formulated diets, the activities of trypsin and lipase in the individuals that fed on the flesh of silver carp are higher than those fed on worm and formulated diets, the activities of amylase in the individuals that fed on formulated diets are higher than those fed on worm and the flesh of silver carp.

用蚯蚓、鲢肉和配合饲料等三种不同的饲料投喂黄鳝表明，摄取蚯蚓时能显著增加蛋白酶的活性，摄取鲢肉时胰蛋白酶和脂肪酶的活性增加最大，摄取配合饲料时其淀粉酶活性增加最大，表明黄鳝摄取不同的饲料对其的消化酶活性会产生不同的影响。

Monitoring shows that through 8 years of fishing and proliferation released, Lake fishery resources and ecological environment improvement, especially through the proliferation of releasing the lake fish resources increased significantly improve population structure, the catch of Lake grass carp, silver carp and bighead carp, such as "Four fish" to increase the ratio of nearly 6 percentage points

监测显示，通过8年来的禁渔和增殖放流，鄱阳湖渔业资源和生态环境得到改善，特别是通过增殖放流，湖区鱼类资源量提高，种群结构改善明显，鄱阳湖的渔获物中草鱼、鲢鱼和鳙鱼等&四大家鱼&的比例提高了近6个百分点。

In addition to the carp lake, there are carp, grass, silver carp, bream, and other kinds of sixties and seventies.

湖里除鲫外，还有鲤、草根、鲢、鲷等六七十种。

" One generalization that can be made is that the Chinese carp s, particularly grass carp and silver carp , are more delicate animals than related species of European or Central asian origin."

一般可以这样看：中国鲤科鱼类，特别是草鱼和鲢鱼，比之起源于欧洲和中亚的有关鱼种，其肉质更为细嫩

The main breeding species are grass, silver carp and bighead carp, carp and tilapia, bream, Yuan Yu.

主要养殖品种有草、鲢、鳙、鲤、罗非鱼、鲂、元鱼等。

Walking in the 100 m long, 270-degree acrylic tunnel made of glass-enclosed, the colorful coral, colorful silver crucian carp, Silver Dragon fish, the Chinese rouge fish, Arapaima, Piranha and other fish will be in your leisurely cruise around; the most gentlemanly Mr. Penguin will pay tribute to your beckoning; You can also watch the considerable value of swordfish, manta rays, sharks and other marine life rat specimens.

漫步在100米长、270度亚克力玻璃环绕而成的海底隧道中，五光十色的珊瑚群、色彩斑斓的银鲫、银龙鱼、中华胭脂鱼、巨骨舌鱼、食人鲳等鱼类会在您身边悠闲的游弋；最具绅士风度的企鹅先生会向您招手致敬；您还可以观赏到价值可观的旗鱼、蝠鲼、老鼠鲨等海洋生物的标本。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。