The number of coccidian oocysts in wormcast group was lower thanthat in sawdust group , which was helpful to control the coccidiosis of chicken before 60 days old .
蚯蚓粪

卵数量低于
屑
, 有利于
60
龄前鸡的
病。
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Researchers were shocked to find this changing regime causing a population collapse among the humble dung beetles, which are key distributors of nutrients and seeds and important indicator species of the health of an ecosystem.
研究人员震惊地发现,这种不断变化的制度导致了不起眼的
甲虫种群崩溃,它们
营养和种子的主要分配者,也
生态系统健康状况的重要指标物种。