Figure 3
From: Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
Heavy metal concentrations in the faeces of chickens fed with maggot meal. The x-axis in all plots shows the proportions of maggots added into the feed (0%, 5%, 10% and 15%). CK represents meal feed for chickens without maggot addition. Data are means ± SEM (n = 3). Different letters on each column indicate significant differences between treatments at P < 0.05 during different groups.
