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Drug-Residue Avoidance
Prevent disease, which helps limit the use of antibiotics.
- Emphasise animal-husbandry best-management practices
- Practice farm and herd biosecurity
- Maintain good herd health
- Diagnose sick animals early and accurately; take immediate action
- Mark and separate treated cows from milking herd
Follow directions on the drug label, paying close attention to:
- Treatment dosage
- Recommended milk withholding time
- Drug being used is approved for lactating cows
- Frequency of treatment
- Route of administration
Keep and review treatment records showing:
- Treated cows' ID numbers
- Date and time of treatment
- Antibiotic used
- How drug is administered
- Dosage and frequency used
- Withdrawal period
Make one person responsible for treating cows and monitoring records.
- Review and check records at every milking
- Be informed of treatments given by veterinarian
- Milk all treated animals last
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- Discard milk from all four quarters of udder, even if only one quarter was treated
- Dry-cow treatments last longer—test all dry-treated cows, especially those that freshen early—before putting them back into the milking line
- Extra-label treated cows' withholding times are unknown—test all extra-label treated cows before putting them back into the milking line
- Segregate and test all purchased herd replacements before introducing them into the milking herd
- Follow label directions for medicated feed, and never use feed intended for other livestock
- Withhold milk from any cow receiving oral, intramuscular, udder infusion or intrauterine antibiotic treatments, and some salves and sprays
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