Effects of roundup pesticides on ‎gonadosomatic index and ‎histopathological changes in gill and ‎testis of common carp ‎‎(Cyprinus carpio)‎

Madani, Elham; Moshfegh, Azam; Setorki, Mahbubeh; Tehranifard, Akram

doi:10.30473/eab.2020.41978.1649

Document Type : Article

Authors

¹ M. A., Department of Marin Biology, Lahijan Branch, ‎Islamic Azad University, Lahijan, Iran

² Assistant Professor, Department of Biology, Lahijan ‎Branch, Islamic Azad University, Lahijan, Iran

³ Assistant Professor, Department of Biology, Izeh Branch, Islamic Azad University, Izeh, Iran

https://doi.org/10.30473/eab.2020.41978.1649

Abstract

Glyphosate based pesticides are safe for humans, but their widespread use in agricultural areas and water contamination raised serious concerns about its toxicity. The aim of this study was to investigate the effects of different doses of roundup on body weight, gonadosomatic index (GSI) and histological alterations of gill and testis in common carp. 32 common carp broodstock (1723.75 ± 72.72gr) were randomly divided into 4 groups of 8 fish. . One group (control) had no exposure to herbicide and 3 groups (treatment) were exposed to rounduppesticide at 4 concentrations (5, 10 and 15 mg/L) for 10 days. After treatment period, body length, body weight and GSI index were determined and gill and testis samples were prepared for histological studies. Based on the results, exposure to roundup at a dose of 20 mg/L caused a significant decrease in body weight on the10th day and GSI index on the 5th and 10th day (p<0.05). In fishes exposed to roundup (20mg/L) necrosis and disintegration of gill lamellae structure, adhesions of gill lamellae, separation of basement membrane and damage of gill epithelium and exudation of blood cells were observed. In the testis of fish exposed to the highest dose of roundup, an increase in the number of spermatogonium due to reduced spermatogenesis, degradation of spermatocyte, reduction of spermatozoa, reduction of sperm storage tubules diameter and destruction of interstitial duct and sertoli cells were observed. The results indicated destructive effects of sublethal doses of roundup on gill structure and reproductive performance of common carp.

Keywords

20.1001.1.23222387.1399.8.4.2.8

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Experimental animal Biology

Effects of roundup pesticides on ‎gonadosomatic index and ‎histopathological changes in gill and ‎testis of common carp ‎‎(Cyprinus carpio)‎

References

References

Volume 8, Issue 4 - Serial Number 4
May 2020
Pages 21-31

Effects of roundup pesticides on ‎gonadosomatic index and ‎histopathological changes in gill and ‎testis of common carp ‎‎(Cyprinus carpio)‎

References

References

Volume 8, Issue 4 - Serial Number 4May 2020Pages 21-31

Volume 8, Issue 4 - Serial Number 4
May 2020
Pages 21-31