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Table 1
Semiquantitative scoring of testis and ovary of zebrafish, which exposed to different concentrations (9.5, 19, and 38 mg/L) of imidacloprid. Histopathological lesions were scored to their severity (−: none, +: mild, ++: moderate, +++: severe).
| Organ | Histopathological lesions | Control | 9.5mg/L | 19 mg/L | 38 mg/L |
|---|---|---|---|---|---|
| Ovary | Cortical alveolar vacuolization and unification | – | + | ++ | +++ |
| Perifollicular layer openings | – | ++ | ++ | +++ | |
| Distortion of oocyte morphology | – | + | ++ | ++ | |
| Atretic oocytes | – | + | ++ | +++ | |
| Hyperplastic perifollicular cells | – | + | + | + | |
| Karyorrhexis | – | – | + | + | |
| Disruption of nucleolus organization | – | – | + | ++ | |
| Testis | Unification of seminiferous tubules | – | – | +++ | +++ |
| Hypertrophic spermatogenic cells | – | ++ | +++ | +++ | |
| Hypertrophic Leydig cells | – | +++ | +++ | +++ | |
| Distortion of seminiferous tubules | – | – | ++ | ++ |
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