pure-line selecting and breeding
...；选育；纯繁；导血；荣昌猪 [gap=1739]Key words : Conservation; Selection and breeding; Pure-line Selecting and breeding; Cross Selecting and Breeding; Rongchang pig’s..
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pure-line selecting and breeding
纯种选育
以上为机器翻译结果，长、整句建议使用 人工翻译 。