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Articles by A.J. Yaji
Total Records ( 2 ) for A.J. Yaji
  A.J. Yaji and J. Auta
  The effects of sub-lethal concentractions, 2.51, 5.02 and 10.04 mg L-1 of monocrotophos on some haematological indices of Clarias gariepinus were investigated in the laboratory. The packed cells volume and TEC were significantly reduced (p>0.05) in fish exposed to the toxicant concentrations than in the control groups. However, the TLC, neutrophils and Lymphocytes were observed to be significantly higher (p<0.05) in the exposed fish compared to the control groups. The study shows that sublethal concentration of monocrotophos is harmful to Clarias gariepinus, therefore, the usage close to water bodies for fish production is dangerous.
  A.J. Yaji and J. Auta
  The effect of sub-lethal concentrations 2.51, 5.02 and 10.04 mg L 1 of monocrotophos (organophosphorus insecticide) on growth, nutrient and body composition of Clarias gariepinus were studied in the laboratory. The growth rates were significantly reduced in fish exposed to the toxicant compared with the control groups. The nutrient utilization showed that, SGR, FCR, FCE, FE, PER and NM were significantly higher (p< 0.05) in the control fish compared to the exposed groups. Similarly, the percentage crude protein and oil content were significantly higher (p< 0.05) in the control than the exposed groups. The investigation revealed that, low concentration of monocrotophos causes various physiological effects in this fish. The usage of this insecticide near water bodies for fish production should be monitored and control.
 
 
 
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