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Published yearly: 

4 Issues


ISSN: 2320-964X (Online) 

ISSN: 2320-7817  (Print)



Dr. Santosh Pawar 




Int. Journal of Life Sciences, 2016; 4(2):207-213 |  Available online, July 23, 2016

Haematotoxicity of Cypermethrin (25% EC) to white carp (Cirrhinus mrigala)



Neelima P, Govinda Rao K, Krishna Ch, Sunanda M and Chandra Sekhara Rao J* 


Department of Zoology and Aquaculture, Acharya Nagarjuna University, Nagarjuna Nagar-522510,

Guntur, AP, India

*Corresponding author E-mail:


Received: 24.05.2016   |    Accepted: 28.06.2016   |   Published : 23.07.2016

Cyperkill 25%EC is a synthetic pyrethroid pesticide widely used in Guntur district for pest control in agri ventures due to its effective control against different pest species in a definitive and constant way with low cost. Its presence in freshwater environs is very common in this area. Contamination of aquatic ecosystems with this toxicant affects all groups of aquatic fauna including fish which are non target biota. A static-renewal bioassay was conducted to assess the acute and sublethal toxicity of cypermethrin on some haematological parameters of white carp (Cirrhinus mrigala). Juveniles of experimental fish were exposed for lethal (96 h LC50 i.e. 4.23µg/L) and sublethal (1/10th of 96 h LC50 i.e. 0.423µg/L for 5, 10 and 15 days) concentrations of cypermethrin. Decreased tendency at both lethal and sublethal concentrations was evident in RBC count, Hb content and PCV. At the same time an increasing trend in WBC count and MCHC at sublethal and decreasing trend at lethal concentration. MCV and MCH values were elevated at both lethal and sublethal concentrations. Toxicity derived alterations observed in haematological indices during this study led to a conclusion that the cypermethrin has detrimental effect on the test fish and its presence in an aquatic environment may severely threaten the health  of the ecosystem and its living component.


Keywords: Cyperkill, Haematological indices, Toxicity, Bioassay, Synthetic pyrethroids.



Editor: Dr. Arvind Chavhan


Cite this article as:

Neelima P, Govinda Rao K, Krishna Ch, Sunanda M and Chandra Sekhara Rao J (2016) Haematotoxicity of Cypermethrin (25%EC) to white carp (Cirrhinus mrigala), International J. of Life Sciences, 4(2): 207-213.



Authors are thankful to the Head, Department of Zoology & Aquaculture and the authorities of Acharya Nagarjuna University for the encouragement and support by providing necessary facilities. Corresponding author is thankful to Dr. G. Simhachalam, Assistant Professor, Department of Zoology & Aquaculture for the encouragement and support by providing laboratory facilities.



Copyright: © 2016 | Author(s), This is an open access article under the terms of the Creative Commons Attribution-Non-Commercial - No Derivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.







    Origin & Evolution

    Print ISSN : 2320-7817 

    Online ISSN:2320-964X

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