Principal Component Analysis of Body Weight and Body Size Traits of Cherry Valley Duck at Different Ages
WU Jinhua, LI Qingshan, TAN Shuwen, LI Hua, JING Donglin
Journal of Henan Agricultural Sciences . 2020, (7): 139 -145 .  DOI: 10.15933/j.cnki.1004-3268.2020.07.019

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