A. A. Essa, M., Marzouk, M., S. Elias, N., H. Shaker, M., M. A. Mohamed, G. (2010). Impairment of female Oreochromis niloticus fecundity exposed to Butachlor herbicide. test, 20(1), 38-43. doi: 10.21608/jvmr.2020.77578
Manal A. A. Essa; M. S. Marzouk; Nashwa S. Elias; Maysa H. Shaker; Ghada M. A. Mohamed. "Impairment of female Oreochromis niloticus fecundity exposed to Butachlor herbicide". test, 20, 1, 2010, 38-43. doi: 10.21608/jvmr.2020.77578
A. A. Essa, M., Marzouk, M., S. Elias, N., H. Shaker, M., M. A. Mohamed, G. (2010). 'Impairment of female Oreochromis niloticus fecundity exposed to Butachlor herbicide', test, 20(1), pp. 38-43. doi: 10.21608/jvmr.2020.77578
A. A. Essa, M., Marzouk, M., S. Elias, N., H. Shaker, M., M. A. Mohamed, G. Impairment of female Oreochromis niloticus fecundity exposed to Butachlor herbicide. test, 2010; 20(1): 38-43. doi: 10.21608/jvmr.2020.77578

Impairment of female Oreochromis niloticus fecundity exposed to Butachlor herbicide

Journal of Veterinary Medical Research
Article 6, Volume 20, Issue 1, March 2010, Pages 38-43    PDF (675.11 K)
Document Type: Original Article
DOI: 10.21608/jvmr.2020.77578
Authors
Manal A. A. Essa1; M. S. Marzouk2; Nashwa S. Elias3; Maysa H. Shaker4; Ghada M. A. Mohamed4
1Department of Fish, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef,62511, Egypt,
2Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
3Department of Fish Diseases, Animal Health Research Institute, Giza, Egypt
4Department of Pathology, Animal Health Research Institute, Giza, Egypt.
Abstract
Female Oreochromis niloticus were exposed to 1/10 LC50 (0.21ppm) of butachlor herbicide for 6 weeks. Weekly specimens were taken for fecundity estimation. Also hormonal and enzymatic levels were determined in addition histopathological alterations in ovaries and liver were detected. Butachlor exerted drastic effects on absolute and relative fecundity. Sex hormones (testosterone "T" and estradiol "E2") dropped significantly. The high significantly decline in Total Ripen Egg Number was assisted by the coagulative necrosis and oocytic atrasia in ovaries. In addition, thrombus formation and hepatoadenocarcinoma were pronounced in the liver and resulted in the significant drop in ALT and total protein levels. So, it is recommended to apply the biological control of pests in substitution to herbicids in rice fields.
Keywords
Oreochromis niloticus; Impairment; Female; fecundity; Butachlor; herbicide
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