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Drug Withdrawal and Milk Discard Times of Tetracyclines

Drug Withdrawal and Milk Discard Times of Tetracyclines

Tetracycline

Species

Withdrawal Time (days)

Oxytetracyclinea

Cattle

15–22

Pigs

22

Poultry

5

Oxytetracycline (long-acting)a

Cattle

28

Chlortetracycline

Cattle

10

Pigs

1–7

a Not for use in lactating dairy cows

Merck and the Merck Veterinary Manual

Merck & Co., Inc., Kenilworth, NJ, USA is a global healthcare leader working to help the world be well. From developing new therapies that treat and prevent disease to helping people in need, we are committed to improving health and well-being around the world.  The Merck Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Manual outside of North America.

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