Figure 1
From: Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
Heavy metal levels in swine manure before and after maggot conversion. RSM means raw swine manure; TSM means maggot-treated swine manure; data are presented as the means ± SEM (n = 3); the p value represents the significant differences; and values were analysed by Student’s t-test.
