To study the clinical toxicity and attenuation of Leucaena in broilers, 250 10-day-old AA broilers were randomly divided into five groups, which every group had 50 broilers.
为研究银合欢对肉鸡的临床毒性和减毒作用，250只10日龄aa肉鸡随机分为五组，每组50只。
Firstly, in the repeated 28-day oral toxicity study based on the OECD draft protocols we fully investigate the interference effects on endocrine system.
首先，本课题组选用了大鼠28天反复经口毒性实验对氟吗啉内分泌干扰作用进行全面初步探讨。
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