Abstract
The degradation of malathion after 2 months, on feed sprayed with 0.08% and 0.16% of 50% malathion emulsifiable was 63 and 64% respectively. The half life was 30 days. Chicks fed with 32P malathion did not show any signs of toxicity. With lower dosage at 10 days, the concentration of 32P was highest in the kidney (10ppm), followed by liver (9ppm), blood (8ppm), heart and spleen (5ppm), lung (4ppm), intestine (3ppm), muscle (3ppm), and bone, brain and testes (2ppm).
With the lapse of time 32P was slightly increased in different organs and at 30 days, it was maximum in liver followed by other organs. With higer dosage (800 ppm) the concentration of 32P was correspondingly higher in various organs under study. On stopping the treatment, 32P was abruptly decreased in all the organs and at 10 days (post-treatment), liver and kidney had less than 1ppm, whereas, no 32P was detected in other organs.
