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October and November are typical months for calf weaning, pregnancy checking of cows, and cow culling. To ensure the beef industry continues to provide the best product possible for its consumers, it’s vital that cow-calf producers
October 7, 2010
October and November are typical months for calf weaning, pregnancy checking of cows, and cow culling. To ensure the beef industry continues to provide the best product possible for its consumers, it’s vital that cow-calf producers have a close working relationship with a large-animal veterinarian in their area, says Glenn Selk, Oklahoma State University Extension emeritus animal scientist.
If a cow has an infection or disease that must be treated, her owner should closely follow the vet's directions, and also read the label of the product used. Most of these medications will require that the producer keep the treated animal for the label-directed withdrawal time. The Oklahoma Beef Quality Assurance (BQA) Manual contains the following discussion of medication withdrawal times:
"A withdrawal time may be indicated on the label of certain medications. This is the period of time that must pass between the last treatment and the time the animal will be slaughtered or milk used for human consumption. For example, if a medication with a 14-day withdrawal period was last given on Aug. 1, the withdrawal would be completed on Aug. 15 and that would be the earliest the animal could be harvested for human consumption.
“All federally approved drugs will include the required withdrawal time for that drug on the product label or package insert. These withdrawal times can range from zero to as many as 60 days or more. It’s the producer's responsibility to be aware of withdrawal times of any drugs used in their operation. Unacceptable levels of drug residues detected in edible tissues collected at harvest may result in traceback, quarantine and potential fines or jail time. Substantial economic losses may result for the individual producer as well as negative publicity for the entire beef industry…”
Producers are responsible for residue problems and should follow these four rules:
Don’t market animals for food until the withdrawal time listed on the label or as prescribed by the veterinarian has elapsed.
Use only medications approved for cattle and exactly as the label directs or as prescribed by your veterinarian.
If ever in doubt, rely on the veterinarian-client-patient relationship you have established with your veterinarian.
Keep well organized, detailed records of pharmaceutical products given to individually identified animals. Include in the record, the date of administration, route of administration, dosage given, lot or serial number of product given, person delivering the product, and label or prescription listing of withdrawal dates.
Find examples of BQA records at www.beefextension.com under the menu item “BQA Record Forms.” Records should be kept for three years after sale of the animal.
-- OSU Cow-Calf Corner
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