Keywords : Gross
Iraqi Journal of Veterinary Sciences,
2021, Volume 35, Issue 3, Pages 417-419
Sodium chloride (NaCl) have a major impact on fish farming, as it used to disinfect fish and their eggs, in contrast using NaCl in high dose can cause life threating toxicity with high mortalities in Cyprinus carpio. We aimed in current report to introduce for specialist in fish culturing and farmers a typical acute NaCl toxicity by presenting pathological lesions. The histopathological lesions composed from sever degenerative and necrotic changes in gill filaments with destruction in blood vessels and hyperplasia in secondary gill lamella. In conclusion, using NaCl in high uncalculated doses can cause significant pathological changes that lead to 100% mortalities in Cyprinus carpio.