Abstract
Several species of fish were collected from the Miramichi River in New Brunswick, Canada analyzed for DDT residues and metabolites, and then incorporated into a commercial mink feed mixture. Ranch mink (Mustela vtson) fed this diet developed higher levels of DDE in liver and adipose tissue, than did mink on a control ration. Males appeared to concentrate higher tissue levels than females, but the effect on spleen and adrenal weights was greater in the females. Erythrocyte count, leukocyte count, hemoglobin, and hematocrit were all lower in the animals fed the DDT ration, but blood pH did not appear to be so affected. Females on the experimental diet had a significantly greater (P < 0.01) embryonic loss (counting losses to 24 hours post birth) than did control littermates (3.0 vs. 1.0). The sex ratio was weighted in favor of female kits in the litters of the females fed the DDT diet.
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