Haematological effect of chlorfenapyr-exposed freshwater African mud catfish, Clarias gariepinus (Burchell 1822)

Imeh K. Esenowo (Animal and Environmental Biology University of Uyo Akwa Ibom State Nigeria)
Maureen N. Chukwu
Akwaowo U. Nelson
Chibuisi G. Alimba
Micheal Johnson
Mmandu U. Effiong
Akaninyene U. Akpan
Adiaha A.A. Ugwumba
Nsima I. Udoidung
Nsikakabasi C. Ukpong
Alex O. Ugwumba
Efe Ogidiaka
Adeyemi O.A. Ale
Godsgift Sunday

Aceh Journal of Animal Science
Vol 8, No 1 (2023): February 2023

The effects of chlorfenapyr pesticide were investigated on juvenile of Clarias gariepinus. Sub-lethal test was carried out using 5, 7, 9, 11 and 15 mgL-1 of chlorfenapyr pesticide for 96 hours, and peripheral blood was collected through the caudal vein and examined for haematological changes. There was significant reduction (P0.05) in WBC when compared to the control. RBC increase was directly proportional to increase in chlorfenapyr dose and significantly differed from control (p0.05). HGB increased in a dose-dependent manner. MCV values of all treatment groups, except 15 mgL-1, were higher when compared to control. MCH was not significantly different from control. PLT decreased with increase in concentration and was lower for all treatment when compared with control. Results obtained in this study suggest that exposure to sub-lethal concentrations of chlorfenapyr can alter the haematological indices of non-target organisms.