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1、北京智博睿信息咨询有限公司www.zhiborui.com年出栏3000头西门塔尔牛养殖基地建设项目可行性研究报告西门塔尔牛原产于瑞士西部的阿尔卑斯山区，主要产地为西门塔尔平原和萨能平原。在法、德、奥等国边邻地区也有分布。西门塔尔牛占瑞士全国牛只的50％、奥地利占63％、前西德占39％，现已分布到很多国家，成为世界上分布最广，数量最多的乳、肉、役兼用品种之一。该牛毛色为黄白花或淡红白花，头、胸、腹下、四肢及尾帚多为白色，皮肢为粉红色，头较长，面宽；角较细而向外上方弯曲，尖端稍向上。颈长中等；体躯长，呈圆筒状，肌肉丰满；前躯较后躯发育好，胸深，尻宽平，四肢结实，大
2、腿肌肉发达；乳房发育好，成年公牛体重乎均为800--1200千克，母牛650——800千克。西门塔尔牛乳、肉用性能均较好，平均产奶量为4070千克，乳脂率3.9％。在欧洲良种登记牛中，年产奶4540千克者约占20％。该牛生长速度较快，均日增重可达1.0千克以上，生长速度与其他大型肉用品种相近。胴体肉多，脂肪少而分布均匀，公牛育肥后屠宰率可达65％左右。成年母牛难产率低，适应性强，耐粗放管理。总之，该牛是兼具奶牛和肉牛特点的典型品种。另：提供国家发改委甲、乙、丙级工程咨询资质urbantrafficstructureintheurbanpublictranspor
3、tsystem,railtrafficwithafast,largecapacity,lowpollutionandhighefficiency,becomeanindispensablepartofurbantrafficstructure,isthecontradictionbetweensupplyanddemandofthegrowingmetropolis,cities,effectivemeanstomeettheneedsofurbantraffic.Thefollowingtableisarailtransportandothermodesofu
4、rbanpassengertransportcapacity,transportationspeedandresourceconsumption,andsoon.Comparisonofurbanpassengertrafficcharacteristicstable5.1-2trafficvolume(human/h)transportspeed(km/people)Roadareaoccupied(M2/people)scopebike2,00010-153,000shortcar20-5010-20widebus6,000-9,0001-240-600.2
5、5-0.5fromtheMetrolightrailof10,000-30,000inlong-distanceline3Morethan0,00040-60donotoccupyanareabothintermsoftransportoverlongdistances,transportefficiency,orfromthelevelofresourceconsumptionandenvironmentalpollution,railtransportisundoubtedlyaneffectivemeanstosolvetheproblemoftraffi
6、ccongestionincities.Especiallyinurbanpopulationstrengthenormoustrafficdemandontheroutetoeasetrafficpressure,railtransportationhasincomparableadvantages.Washington,DC,areaof177km2,andapopulationof600,000,isaUnitedStatespoliticalcenter.FortheWashingtonMetrosystemUnitedStatessecond-busi
7、estsubway,secondonlytotheNewYorksubway,openedin1976.Currentrailsizesfor5,station86,total171.6km,netannualpassengervolumereached223millionpeople.Accordingtostatistics,from2000to2009vehicletripdown12.7%,bustravelhasincreasedby12%.ObjectivesoftheWashingtonMetrosystemboilsdowntothefollow
8、ingthreepoin
