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1、29水产饲料加工工艺学二、水产饲料的种类(一)水产配合饲料水产配合饲料是水产全价配合饲料、水产添加剂预混合饲料、水产浓缩饲料和水产混合饲料的统称。水产全价配合饲料按产品形态和制作方式又可分为:1.硬颗粒饲料2.挤压颗粒饲料3.软颗粒饲料4.微囊颗粒饲料5.粉末饲料6.其他形态饲料第一章水产配合饲料原料第一节原料的种类与特点一、饲料原料的分类(一)根据饲料来源分类1.植物性饲料:青绿饲料、粗饲料、谷类子实及加工副产品等。2.动物性饲料:利用动物性产品加工而成,奶粉、鱼粉、蚕蛹、肉骨粉、羽毛粉等。3.微生物饲料:利用微生物包括酵母、霉菌、细菌及藻类等生产的饲料。4.矿物质饲料:天然和工业生产的
2、矿物质,如石粉、食盐、硫酸铜等。5.特种饲料:尿素、添加剂等。(二)国际饲料分类法-由美国科学家HarrisL.E.(1963)提出,目前已被世界许多国家接受。该法以各种饲料干物质的主要营养特性为基础,将饲料分为八类:1.青干草和粗饲料:粗纤维含量≥18%,青干草、秸秆、秕壳等。2.青饲料:天然含水量≥60%,牧草、蔬菜类、树叶等。3.青贮饲料:用新鲜的天然植物性饲料调制而成的青贮饲料,包括水分含量在45%~55%的低水分青贮(半干青贮)料。rationalconcepttoallownetworkmoreinlinewiththeobjectivelawsofthefuturedevel
3、opmentofthecity.1.5.2planningresearchareas:throughoutthecity,withanareaof13,000km2,cover2districtsand8countiesofthecity,includingdowntownandcitylevels.Planningrange:mainforCityCenterCity,areafor1268km2,NorthtocasesfieldXiang,andJinPingzhen,andGaoDianZhen,andhuangshazhen,andLiuhometownNorthTownship
4、territories,EastNanXIZhen,andJiangnanEastTownshipterritories,Southtohorsehome,andsonghome,andLiZhuangZhen,andSouthwidetown,andZhaofieldStreetdoSouthadministrativeborder,Westtobaixizhen,anddishdamtown,andthoughtslopeXiangWestTownshipterritories.1.6planningtarget1.6.1Generaltargetthisitemsresearchto
5、willYibincitybuiltYangtzeRiverupstreamchuanYunnanGuizhoucombinedDepartmentRegionalCenterCity,supportcityspaceoforderedexpandfortarget,referenceYibincityintegratedtrafficplanning(2014-2030years)andtheYibinCityCitygeneralplanning(2013-2030years)ofresearchresults,usingscience,andadvancedofnetworkrese
6、archmethod,buildingmorelevel,andmoremodeoftracktrafficsystem,Meetatdifferentlevelsofthecity'srailtransportationneedsandqualityrequirements.1.6.2target1,refinedurbandevelopmentaxisofurbandevelopmentconcepts,judgments,rail-guideddowntownfromsolotogroup-developmentofthenetwork,fromoneCentertocenterci
7、tywithaxialdevelopment.2,networkplanningadaptedtoYibinCitystatusandfuturedevelopmentneeds,demonstratesrationalscaleofrailtransporttomeettheneeds294.能量饲料:粗纤维<18%,粗蛋白质<20%,包括谷类籽实、糠麸类、块根块茎类等。5.蛋白质饲料:粗纤维含量<18%,粗蛋白质≥2