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1、Aquaculture350–353(2012)117–129ContentslistsavailableatSciVerseScienceDirectAquaculturejournalhomepage:www.elsevier.com/locate/aqua-onlineReviewTheimportanceofselectivebreedinginaquaculturetomeetfuturedemandsforanimalprotein:Areviewa,bab,⁎TrygveGjedrem,NickRobinson,M
2、ortenRyeaNofima,POBox5010,N-1432Ås,NorwaybAkvaforskGeneticsCenter,N-6600Sunndalsøra,NorwayarticleinfoabstractArticlehistory:Aquacultureisthefastestgrowingfoodproductionindustry,andthevastmajorityofaquacultureproductsReceived21July2011arederivedfromAsia.Thequantityofaq
3、uacultureproductsdirectlyconsumedisnowgreaterthanthatReceivedinrevisedform3April2012resultingfromconventionalfisheries.ThenutritionalvalueofaquaticproductscomparesfavourablywithAccepted9April2012meatfromfarmanimalsbecausetheyarerichinmicronutrientsandcontainhighlevels
4、ofhealthyomega-Availableonline16April20123fattyacids.Comparedwithfarmanimals,fisharemoreefficientconvertersofenergyandprotein.Iftheaquaculturesectorcontinuestoexpandatitscurrentrate,productionwillreach132milliontonnesoffishKeywords:Aquacultureandshellfishand43milliontonn
5、esofseaweedin2020.FuturepotentialformarineaquacultureproductionPotentialcanbeestimatedbasedonthelengthofcoastline,andforfreshwateraquaculturefromavailablelandareainSelectivebreedingdifferentcountries.Theaveragemarineproductionin2005was103tonnesperkmcoastline,varyingf
6、romAnimalprotein0to1721(China).Freshwateraquacultureproductionin2005averaged0.17tonnes/ha,varyingfrom0tocloseto6tonnesperha(Bangladesh),alsoindicatingpotentialtodramaticallyincreasefreshwateraquacul-tureoutput.Simpleestimationsindicatepotentialfora20-foldincreaseinwo
7、rldaquacultureproduction.Limitsimposedbytheavailabilityoffeedresourceswouldbelessenedbygrowingmoreherbivorousspeciesandbyusingmoreofgeneticallyimprovedstocks.Aquaculturegenerallytrailsfarbehindplantandfarmanimalindustriesinutilizingselectivebreedingasatooltoimproveth
8、ebiologicalefficiencyofproduction.Itisestimatedthatatpresentlessthan10%ofaqua-cultureproductionisbasedongeneticallyimprovedstocks,de
