The objective of this study was to investigate the influence of dietary lead (Pb) supplementation and feeding period on growth performance, organ weight, and Pb accumulation in pigs.

中文翻译：

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日粮中过量的铅会降低猪的生长性能，并增加铅的积累。

这项研究的目的是研究日粮中铅（Pb）的添加和饲喂期对猪生长性能，器官重量和铅积累的影响。