CAJ | 학술논문

为分析不同日龄池塘养殖雌雄中华鳖体重与形态性状的相关性，随机选取100及300日龄雌雄中华鳖各50只，采用相关分析、通径分析计算了背甲长、背甲宽、腹甲长、体高和体重的表型相关及不同性状对体重的影响程度。结果表明，雌雄中华鳖背甲长、腹甲长及体高有显著差异（P ＜0．05）。各性状与体重之间的相关系数均达到显著水平（P ＜0．05）。100日龄中华鳖，背甲长对雌鳖体重的直接影响最大，对体重的决定程度最高；腹甲长对雄鳖体重直接影响最大，对体重的决定程度最高。300日龄中华鳖，背甲长对雌雄个体体重直接影响最大，决定程度最高。
위분석불동일령지당양식자웅중화별체중여형태성상적상관성，수궤선취100급300일령자웅중화별각50지，채용상관분석、통경분석계산료배갑장、배갑관、복갑장、체고화체중적표형상관급불동성상대체중적영향정도。결과표명，자웅중화별배갑장、복갑장급체고유현저차이（P ＜0．05）。각성상여체중지간적상관계수균체도현저수평（P ＜0．05）。100일령중화별，배갑장대자별체중적직접영향최대，대체중적결정정도최고；복갑장대웅별체중직접영향최대，대체중적결정정도최고。300일령중화별，배갑장대자웅개체체중직접영향최대，결정정도최고。
In present study, carapace length and width, plastron length and body height of Pelodiscus sinensis were meas-ured in total of 200 turtles.The phenotype correlation coefficients , path coefficients and determination coefficients were es -timated to find out the main morphometric attributes which affect the body weight .A correlation coefficient matrix was con -structed, and results showed that the morphological traits significantly correlated with body weight (P <0.05).Path coef-ficients and determination coefficients indicated that carapace length showed the largest direct impact on body weight for 100 days old female turtle.Plastron length showed a largest direct impact on body weight of 100 days old male turtles.Cara-pace length showed a largest direct impact on body weight of 300 days old male and female turtles.