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. 1969 Dec 5;166(3910):1278-80.
doi: 10.1126/science.166.3910.1278.

Avian thyroid: effect of p,p'-DDT on size and activity

D J Jefferies, M C French

Avian thyroid: effect of p,p'-DDT on size and activity

D J Jefferies et al. Science. .

Abstract

Feeding sublethal amounts of p,p'-DDT to pigeons caused an increase in thyroid weight and a reduction in colloid content of the follicles. This may reflect a hyper- or hypo-functioning gland and may be cotnnected with recent reductions in egg shell weights in wild birds. The effect was accompanied by increased liver weight.

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