Abstract
Methylparathion. an organophosphates insecticide, was tested for its embryotoxicity in chicks. Different concentrations of the insecticide ranging from 1.00 to 10.00 pgiegg were injected into the yolk sac of chick eggs at day 4 of incubation. All treated embryos were reduced significantly (P<0,00) in CR length on day 7 of incubation. Besides a higher embryonic mortality. the survivors had sever gross malformations including microcephaly, anophthalmia, micromelia, twisted spinal cord and utopia cardis. It is suggested as this insecticide is very dangerous for developing organism. it should be used very carefully
ASMATULLAH, EARFA SALAH, SHAGUFTA ANDLEED , ASIA IQBAL. (2002) Embryotoxicity of Methylparathion in Developing Chick, Punjab University Journal of Zoology, Volume 17, Issue.
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