Authors : Lakhani Leena
Page Nos : 349-361
Description :
Adult Eudichogaster kinneari were exposed to 0.6 ppm concentration of Dimethoate,
0.5 ppm concentration of Azodrin and 0.003 ppm concentration of Thiodan for twenty
days to evaluate profound changes in the histomorphology and histochemistry of testis.
Spermatogenesis was severely affected with exposure of above insecticides causing
reduced testicular activity by destruction of cellular architecture observed by
vacuolization of cells in different stages of spermatic follicles and in cytophore, necrosis,
lesions, congregation of spermatogenic material, and uneven arrangement of
spermatozoa around the cytophore and ultimate atrophy of spermatic follicles.
Decreased intensity with histochemical reactions and reduced size of spermatic follicles
(p<0.001) were observed. The present study indicates that among the three insecticides
tested, thiodon is most toxic to earthworm E.kinneari, than azodrin and dimethoate
respectively. The intensity of deterioration were noticed more toxic in thiodan > Azodrin
> Dimethoate respectively.
KEY WORDS: Eudichogaster kinneari, Insecticide, testis, histomorphology,
histochemistry.
