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A -The mean distribution of leydig٬s cell (µm2) of testicular tissue in control and different test groups .A significant (P<0.01) decrease in this parameter is evident only in high dose group after 45 days exposure to pyridaben. B- The mean distribution of lymphocyte distribution (µm2) in testicular tissues of control and different test groups .The significant (P<0.01) increase in distribution of their cells evident at 10 days in both the low and high dose groups
