Abstract
The embryotoxic and teratogenic potential of methamidophos, an organophosphorus insecticide, was tested in chick embryos. Different concentrations of methamidophos ranging from 3 to 15 ig per egg were injected into the yolk of chick eggs before incubation. A higher embryonic mortality was observed in dose groups of 9, 12 and 15 ag per egg. Besides reduced body size the gross malformations including microcephaly, exencephaly, anophthalmia, micromelia, short neck and beak, twisted spinal cord and ectopia cardis were found in treated embryos. These malformations were more severe in higher dose levels.
ASMATULLAH, ASMA ABDUL LATIF, SHAHZAD AHMAD MUFTI, SHAHAN AHMAD MUFTI. (1998) DEVELOPMENTAL DEFECTS INDUCED BY METHAMIDOPHOS IN CHICK EMBRYOS , Punjab University Journal of Zoology, Volume 13, Issue 1.
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