Path Analysis and Curve Estimates of Morphometric Attributes Effects on Body Weight of Two-Month-Old Babylonia areolata

The relationship between morphometric attributes and body weight of Babylonia areolata was analyzed using body weight(Y) and 11 morphometric attributes (X1-X11) from seven-month-old B. areolata. The results show that significant positive correlation between morphometric attributes and body weight, and all the correlation coefficients reach extremely significant level (P<0.01). The path analysis reveal that X2 display the highest positive direct effect (0.373) to body weight, and follow by X7 and X3. X10 affect body weight indirectly by X2, X3 and X7. The analysis results of determination coefficients show that the total decision coefficient of four morphological attributes to body weight is find to be 0.852, and indicating those morphological attributes are the main factor to body weight. The multiple regression equation is established by multiple regression analysis, the results show that all the best model for two-month-old B. areolata. are including: Y=0.003X22.513, Y=0.003X32.435, Y=0.001X72.597, Y=-6.496+1.329X10.