成熟公猪兩個睪丸之重量約為體重之1 / 250,較大之睪丸具有較佳之生精與配種能力 Neely, J. D., R. K. Johnson, and O. W. Robison. 1980. Heterosis estimates for measures of reproductive traits in crossbred boars. J. 124 Anim. Sci. 51:1070-1077
9. 性成熟公猪之睪丸總重量約為體重之比例為? (A)1/50 (B)1/10..-阿摩線上測驗