Table 3.
Morphological analysis of kidney tissues of C. carpio exposed for acute and sub-lethal study. The morphological anomalies were represented in symbol based on their severity.
| Kidney tissues morphological anomalies | Control | 96h | 7th | 14th | 21st | 28th | 35th |
|---|---|---|---|---|---|---|---|
| Thickening of Bowman’s capsule | − | ++ | − | + | + | + | − |
| Tubular cell necrosis | − | ++ | − | − | − | + | + |
| Shrinkage of glomeruli | − | ++ | − | − | + | + | − |
| Tubular degeneration | − | + | − | − | − | + | + |
| Glomerular necrosis | − | ++ | − | − | − | + | + |
| Hyaline droplets degeneration | − | + | − | − | − | − | − |
| Cloudy swelling | − | + | − | − | − | − | + |
| Congestion in renal parenchyma | − | − | + | + | + | + | + |
| Reduction of lumens | − | − | − | + | + | − | + |
| Renal tubular separation | − | ++ | − | − | + | − | − |
| Necrosis | − | − | − | − | − | + | + |
Note: The anomalies visible in the kidney morphology were divided based on the severity into three grades (−) no anomalies; (+) anomalies in <20% of the fields; (++) anomalies in <20–60% of the fields.