Foot&Leg health factor (or longevity factor) F2 consists of foot angle, foot heel depth and rear legs-rear view.

F2为肢蹄因子（或者称为长寿因子），它包括蹄角度、蹄踵深度和后肢侧视。

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Heritability estimates for linear type traits ranged from 0.10 (foot Angle) to 0.45 (stature).

体型线性性状的遗传力估计值从0.10(蹄角度)到0.45(体高)。

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Heritability estimates for linear type traits ranged from 0.10 (foot Angle) to 0.45 (stature).

体型线性性状的遗传力估计值从0.10(蹄角度)到0.45(体高)。

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