不同光照条件下褪黑素对鸭外周血细胞消长规律的影响
龄南,刘淑英,刘志楠
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畜牧与饲料科学 . 2005, (6): 27 -27 .  DOI: 10.12160/j.issn.1672-5190.2005.06.019