Abstract
Malathion, an organophosphorous insecticide, was tested for embryotonic and teratogenic effects in developing chick Different: aquous concentrations of the insecticide (5.0, 100. 15.0, 20.0 jug egg), were ingected in yolk sac of he eggs betore incubation. Embrvo recovertes Were made at day 7 and 14 of incubation. At day 7. morphological, anatomical and morphometric studies revealed
concentration dependent adverse effects of the insecticide. The developmental defects were significant reduction in CR length and body weight, hydroencephaly. microcephaly, microphthalmia, anophthalmua, short beak, micromelia, Amelia and ectopia cordis. Developmental anomalies in 14 days embryos included dawarfism. undistinguishable brain parts, microphthalmia, amelia, meningocoele and ectopia cordis.
The present study indicates that Malathion ts potentially dangerous to avian development. This indicates that insecticides must be used with utmost care.
Asmatullah, Bushra Ijaz. (2004) EMBRYOTOXICITY OF MALATHION IN DEVELOPING CHICK, Punjab University Journal of Zoology, Volume 19, Issue .
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