Independent variables (X) | Female | Male | Overall |

Body weight at 1 d | Y=6.4340^{*}X+1559.0 (R^{2}=0.0110) | Y=10.423^{**}X+1728.7 (R^{2}=0.0166) | Y=10.118^{**}X+1550.5 (R^{2}=0.0139) |

Body weight at 14 d | Y=1.8133^{**}X+1495.9 (R^{2}=0.0692) | Y=1.3887^{**}X+1893.8 (R^{2}=0.0273) | Y=2.3222^{**}X+1538.3 (R^{2}=0.0635) |

Body weight at 28 d | Y=1.8294^{**}X+894.76 (R^{2}=0.3127) | Y=1.4012^{**}X+1375.2 (R^{2}=0.1384) | Y=2.2265^{**}X+788.49 (R^{2}=0.305) |

Body weight at 42 d | Y=1.3921^{**}X+496.77 (R^{2}=0.4885) | Y=1.5278^{**}X+473.22 (R^{2}=0.4221) | Y=1.7019^{**}X+236.10 (R^{2}=0.6039) |

Body weight at 56 d | Y=1.2193^{**}X+110.88 (R^{2}=0.6853) | Y=1.2792^{**}X+120.48 (R^{2}=0.6499) | Y=1.3910^{**}X—98.974 (R^{2}=0.754) |