What is it about?

Free-ranging chickens exposed to the pesticide DDT had several changes in the genetic material in their livers. These changes were related to immunity and metabolism. Although the chickens didn't show any obvious signs of illness, there were significant changes in their genetic make-up associated with exposure to the pesticide.

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Why is it important?

Exposure to chemicals such as DDT in the environment may pose a health risk to livestock.


Environmental contamination by pesticides can lead to hidden biological changes in livestock.

Lesa Thompson

Read the Original

This page is a summary of: Investigation of mRNA expression changes associated with field exposure to DDTs in chickens from KwaZulu-Natal, South Africa, PLoS ONE, October 2018, PLOS,
DOI: 10.1371/journal.pone.0204400.
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