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Pymetrozine Causes Physical, Haematological, Blood Biochemical and Histopathological Abnormalities in Bighead Carp (Aristichthys nobilis)

Pymetrozine Causes Physical, Haematological, Blood Biochemical and Histopathological Abnormalities in Bighead Carp (Aristichthys nobilis)

Munir Ahmad1, Abdul Ghaffar1, Riaz Hussain2* and Rifat Ullah Khan3*

1Department of Zoology, Islamia University of Bahawalpur, Bahawalpur-63100, Pakistan
2Department of Pathology, Faculty of Veterinary Sciences, Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan 
3College of Veterinary Sciences, Faculty of Animal Husbandry and Veterinary Sciences, The University of Agriculture, Peshawar, Pakistan
 
*      Corresponding author: driazhussain@yahoo.com

Fig. 1.

Effect of Pymetrozine on histological structure kidney of fish. Photomicrograph of kidneys of treated fish showing a) necrosis of tubular epithelial cells (arrows) and necrosis of tubular epithelium (arrow heads), b) degeneration and necrosis of renal tubules (arrows) and necrotic cells (arrow heads), c) tubular necrosis (arrow heads) and necrosis of tubular cells (arrows) and d) inflammatory exudate (**), tubular necrosis (arrow) and degeneration and atrophied renal tubules (arrow heads).

Fig. 2.
Effect of pymetrozine on histological structure of heart of fish. (a) inflammatory exudate and necrosis of cardiac muscles (arrows), (b) necrosis of cardiac muscles (**) and fatty infiltration (arrows), (c) inflammatory exudate (**) and (d) necrosis of cardiac muscles and edema (**).
Fig. 3.

Effect of pymetrozine on histological structure of brain of fish. (a) necrosis of neurons (arrows) and neurons with eccentric nucleus (arrows), (b) microgliosis (**) and atrophied and necrosis of neurons (**), (c) inflammatory exudate (**) and (d) necrosis of neurons (arrows).

Fig. 4.
Effect of pymetrozine on histological structure of gills of fish showing necrosis of lamellar epithelium (arrows), aneurysm (arrow head), curling of secondary lamellae (*) and disruption and disorganization of cartilaginous core (dcc).
Fig. 5.

Effect of pymetrozine on histological structure of gills of fish liver showing (a) eccentric nucleus of hepatocyte (arrows) and necrosis of hepatocyte (arrow head). (b) atrophied and necrotic hepatocyte (arrows) and inflammatory exudate (**).

Pakistan Journal of Zoology

April

Pakistan J. Zool., Vol. 56, Iss. 2, pp. 503-1000

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