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High level of PCDD+PCDF contamination in bulk milk (9.7pgWHO-TEg −1 fat) from 1604 Holstein Fresian lactacting cows was observed just four weeks after the beginning of their exposure to a feed supplement contaminated at 10.4ngWHO-TEkg −1 dry matter. In-farm produced hay and silage showed levels not exceeding 0.2ngWHO-TEkg −1 dry matter. After the supplement withdrawal, it was...
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