Research Article
A Comparison Effect of Copper Nanoparticles versus Copper Sulphate on Juvenile Epinephelus coioides: Growth Parameters, Digestive Enzymes, Body Composition, and Histology as Biomarkers
Figure 2
Effects of Cu-NPs and CuSO4 on liver and gills morphology of juvenile Epinephelus coioides after 25-day exposure. (a) Liver from control, (b) liver from 100 μg Cu L−1 as CuSO4, (c) liver from 100 μg Cu L−1 as Cu-NPs, (d) gills from control, (e) gills from 100 μg Cu L−1 as CuSO4, and (f) gills from 100 μg Cu L−1 as Cu-NPs. In liver, all treatments showed injuries that include blood cell deposition in veins (BCD) and dilatation of sinusoids (DS). In gills, all treatments showed injuries that include hyperplasia (Hp), aneurism (An), and clubbed tips (Ct). Sections were 7-μm thick and stained with haematoxylin and eosin (H&E, ×100).
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