Comparison Research About Several A Variety Of Quality Of Crucian Identifies Method

Three kinds different method and horizontal are adopted on adopt the morphology (individual level),breeding the function(group level),the genetics to carry out the kind of quality appraisal and valuation on several kinds crucian in this text.Morphology(individual level) aspect combines mainly each other by the tradition morphology admeasurement and the frame admeasurement,adopt SAS to count software method difference analysis and clustering analysing two kinds give first place to analysis method,the characteristic has carried out comprehensive analysis on five strain morphologies such as white crucian carp of our country,this locality crucian carp,red crucian carp,hole court green crucian carp,Peng Ze county crucian carp.Difference analyses the middle tradition parameter contributing bigger parameter By:Strong point,the overall length/experience and observe strong point,long body/ body height,the weight/body grows 3,100 the head the long/eye footpath,the long/ kiss of head,F value is 39.74,31.19,26.9,22.67,19.17 respectively.Tradition adds a frame analyse result indicating pair of forms difference analysing contribution bigger parameter has:The head grows/the eye footpath,strong point,the overall length/experience and observe strong point,long/rise of body,the weight/body grow 3~* the head long/kiss 100,that the frame parameter is hit the target 15,4,1,12, 7.Analytical result indicates clustering,this locality crucian carp and white crucian carp form difference are not notable,other almost plants in a form to go ahead difference is all notable.Method difference result is indicated,red crucian carp,white crucian carp strain parts for and this locality crucian,green hole court crucian carp,Peng Ze county crucian carp difference are notable.Two kinds analysis method result is comparatively consistent,the quality having carried out a kind on green hole court crucian carp all comparatively good identifies that.The cultivation performance(community level) the aspect mainly uses Von-the Bertalanffy growth equation and the mathematical statistic method,to the Tungting lake blue crucian carp and the white crucian carp's growth characteristic,conducts the growth comparison research,with Von-the Bertalanffy growth equation and the mathematical statistic method,This article showed the preliminary exploration of the growth characteristic of blue crucian carp,.The result indicated that,we can express the relations between the body length and the scale diameter of the blue crucian carp with this equation:L=-163.265+22.72559R(r=0.999066);as well as The body weight and the body length relations are:W=0.41348L2.20259(r=0.99787),Von-the Bertalanffy growth equation is:Lt=39.72111~*(1-e-0.25038(t+0.55587));Wt=1375.322 (1-e-0.25038(t+0.55587)) 2.202599.the growth flection point of the body weight locates on 3.724.The growth characteristic gets definite demonstration as important fish cultivation function valuation index in green hole court crucian carp and the white crucian carp research in the growth characteristic.Discover a seedling saying that crucian carp Seremban crucian carp hole court crucian carp and this locality crucian carp are the 2 times bodies without exception,the chromosome counts 2 ns=100.Core type formula is that Hunan says that crucian carp is 2n=26m+30sm+34st+10t;2n=20m+32sm+32st+16t;2n=30m+20sm+26st+24t;2n= 26m+36sm+26st+12t。the 3 times bodies in proper order,the chromosome counts 3ns= 150,core type formula is 3n=36m+42sm+45st+27t.That synthetical three kinds method comparison research indicates crucian fish species quality,comes identify the morphology,study of cultivation and the genetics method is all comparatively effective.Analysis and discriminant function analyse a frame,different index size of self's contribution is different in clustering analysis,need to pay attention to choosing the most effective index therefore,different fish also should carry out preparation by screening before studying.Among three kinds method,the what be adopted effective index all is that they all are not allowed to be short of therefore to building the fish kind of quality data base never with arrangement of ideas,quality or the quality regulation that be unlike fish of reaction is unlike coming aspect.