It does buy some Ontario cull cows

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MOPAC, a plant at Sourderton, Pa., that sometimes buys cull cows from Ontario, has been warned about pentobarbital residues in tallow it markets from its rendering plant.

Pentobarbital is commonly used as a livestock anaesthetic or for euthanasia.

MOPAC was warned twice by state officials – in February and mid-April last year – that the chemical had been identified in tallow.

Now it’s the United States Food and Drug Administration that has issued a warning letter.

The plant is owned by JBS USA, the largest beef-packing company in the world which is controlled from Brazil.