香香英文水的硬度对对虾的影响20141205

TheinfluenceofwaterhardnesstoprawnReporter：xiangxiangDate:2014.12.23Introductiontothewaterhardnesstheinfluenceofwaterhardnesstoprawnmeasurestothewaterhardnessresearchanddevelopmentofdrugs一二三四Contentofthereport一、IntroductiontothewaterhardnessAquaculturewatertotalhardnessismainlydecidedbycalciumandmagnesiumionconcentration,anddescribeitbycalciumcarbonate(CaCO3）equivalent.AccordingtotheequivalentofCaCO3isdividedinto：Softwater：0～75mg／L；

Hardnessinthewater：75～150mg／L；

Hardwater：l50～300mg／L；

Veryhardwater：>300mg／L.

Throughinvestigationandfoundthat：

Ourcommonbreedingpondlowtotalhardnessofregionaldistributionrangeisextensive;Inlandundergroundsalinewaterisgenerallylackof（Potassiumions）K+

、（Magnesiumions）Mg2+;

SomeoftheYellowRiverdeltasalineareasofChina,theundergroundsaltwateralsolacksCa2+;

SomesalineareasinChinaandCa2+contentintheundergroundsalinewaterislow.二、theinfluenceofwaterhardnesstoprawn-Ca2+takepartinthecellwallformationMaintainskinmembraneintegrity—OsmoticregulationDetoxification,reducethetoxicityofheavymetalsCa2+efficacythe

survivalrates

of

PrawnLowconcentrationaffecttheNa-K-atpaseactivity

theinfluenceofwaterhardnesstoprawn

Thestudyfoundthat:thepondisnoteasytowaterorwaterafterpouralgaefast;

Shrimp,crabpondPHchangeinthemorningandevening;Shrimp,crabshellthin,softshellcrab,shrimpisnoteasytoscale,eachmoltdifficulties,muscleweakness;Someaquaticanimalscan'tevennormalbreeding.

AlthoughwaterNa+/K+

ratioandmg2+/Ca2+ratioarenormal,(mg2++Ca2+)/(Na++K+)

ratioinfluenceonSouthAmericawhiteshrimp.ShrimpbodywithoutCa2+storagemechanism,sotheprawnconstantlyabsorbingCa2+fromenvironment.三、measurestoadjustthewaterhardnessmeasuresArtificialaddcorrespondingsaltsWitha"bug"farmedprawnsmodePhytoplanktonhasitselfPressuredropsaltalkaliadjustpH

value

—PourthelimemilkMineralsaltisaddedtothefeed,phospholipid,cholesterol,unsaturatedfattyacids,freeaminoacids,carbohydrates,etcIoncompensationrole198820092001200720112014thedrug—JingBoGaiMeiJing四、researchanddevelopmentofdrugs

PromotethecrayfisheachmoltandscaleAdjustthewaterhardnessandtotalalkalinity,stablewaterbodies,confirmedWithwater,fertility,noteasytofall,pHstabilitypond.JingBoGaiMeiJing—AdjustthetotalhardnessandtotalalkalinityofthewaterbodyProvideminerals,high-energy,compensatorynutrition

Detoxification,reducethetoxicityofheavymetalsTheresearchprogress（2011)calciumconcentrationinwaterimpactonshore,prawnmoltingandgrowthmechanismandphysiologicalecology（2007),SouthAmericawhiteshrimpfarmingtechnologyTake"worm"farminginSouthAmericawhiteshrimptechnology（2009),suchaswaterenvironment(magnesium2++Ca2+)/(Na++K+)ratioonshore,shrimplarvaegrowthandtheinfluenceoftheenergybalanceofpayments（2001)Saline-alkalipondp