Keywords : Cyprinus carpio

Effect addition of Cinnamomum cassia on treatment of pathological infections in Cyprinus carpio L. fingerlings

Mahmoud A Mohammad; Shahbaa AL-Taee; Zahraa M. Al-Jumaa

Iraqi Journal of Veterinary Sciences, 2021, Volume 35, Issue 4, Pages 733-738
DOI: 10.33899/ijvs.2021.128258.1564

The goal of this study was to isolate and identify the causative agents that causes death in Yankee Hatch / Erbil fingerling Cyprinus carpio and to investigate the effect of Cinnamon on the infected fish handled. Both Staphylococcus aureus and Escherichia coli are strongly isolate followed by Aeromonas hydrophila and Klebsiella pneumonia were isolated from liver, kidney and intestine which cause histopathological changes in these organs, characterized by fibrosis in liver, coagulative necrosis in renal tubules in the kidney and sever enteritis. Cinnamomum cassia added to the ration of infected fish at concentration 0.75, 1 and 1.5 %for eight weeks. The histopathological examination reveals that the 1.5% is best the percentage used as food additive for repair and regenerative tissue damage in the liver, kidney and intestine. These study conclude that C. cassia have been used as additive food in fish feed ration at 1.5% and have important role in regenerative tissue damage and keep fish in health status.

Pathological lesions of acute sodium chloride toxicity in common carp: Case report

Saevan S. Al-Mahmood; Asseel M. Rahawi; Hadil B. Al-Sabaawy; Ahmed M. Farhan

Iraqi Journal of Veterinary Sciences, 2021, Volume 35, Issue 3, Pages 417-419
DOI: 10.33899/ijvs.2020.126917.1417

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.

Effect of copper sulfate on liver damage induced by nano- zinc oxide in Cyprinus carpio

S.K.I. AL-Taee; A.H.A. AL-Hamdani

Iraqi Journal of Veterinary Sciences, 2014, Volume 28, Issue 2, Pages 0-0
DOI: 10.33899/ijvs.2014.116942

The effects of Copper Sulfate (CuSO4) on repaired the histopthological changes on liver of Cyprinus carpio exposed to
nano zinc oxide (N-ZnO) was determined in this study.Fish weight 150±10 g divided in to four groups.Fish in first group kept
in dechlorinated water while the fish in second group exposed to copper sulfate CuSO4 for 1 hour and in third group the fish
was exposed to sub lethal concentration of N-ZnO (30ppm) for 7 days while the fish in fourth group exposed to sub lethal
concentration of N-ZnO (30ppm) with CuSO4 (0.3mgL) for 1hour and then exposed continuously to N-ZnO for 7days. The
microscopic examination for the liver done through 24 hour and 7 days from the experiment, which revealed vacuolar
degeneration in hepatic cells in fish exposed to N-ZnO for 24 hour also there were dilatation of sinusoid and infiltration of
inflammatory cells in liver tissue of fish exposed to to N-ZnO with CuSO4 for 1 hour, there were slight hemorrhage in hepatic
tissue and enlargement of hepatic cell in both groups exposed to N-ZnO and CuSO4 for 1 and 24 hour, while the
microscopically examination of liver in fish exposed to N-ZnO for 7 days revealed sever pathological lesions characterized by
hyperatrophy and necrosis in pancreatic tissue. This study concluded that N-ZnO can cause oxidative stress and usage of
CuSO4 at 0.3 mg/L can decrease the toxic effects of N-ZnO liver tissue