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Causes
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Solutions
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| Milk from treated cow(s) enters bulk tank or
cow(s) shipped for slaughter before end of withdrawal time:
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- No permanent written records of treatment(s)
- Poor identification of treated cows
- Forgetting cow was treated
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- Make a permanent record of all treatments
- Identify all treated cows
-use coloured leg bands, livestock marker -for computerized
milking systems, program animal ID and withdrawal time into
computer
- bigger herds can create a separate treatment group
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- Poor communication between person who treats the animal
and person who milks
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- Post treatment information on a designated message or
bulletin board to ensure people milking are aware of treated
cows and appropriate withdrawal time
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- Not keeping out all milk from all quarters of treated
cows
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- Discard milk from all quarters of treated cows.
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- Milk line used as a vacuum source to milk treated cows
when using trap bucket to withhold milk
- Separate milker unit not used for treated cows
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- Check with equipment supplier to see whether current pulsation
system can be adapted to provide vacuum to trap bucket
- Milk treated cows last or with separate equipment to ensure
no contaminated milk can enter the milk supply
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- Milker unit not cleaned properly between treated &
untreated cows
- Treated dry cows not separated from the milking herd
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- Thoroughly clean milker unit between treated and untreated
cows
- Separate dry cows from the milking herd
- Identify dry cows with coloured leg bands or livestock
marker
- Use appropriate antibiotic test
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| Prolonged drug withdrawal time because antibiotics
used in extra-label fashion: |
- Antibiotic drugs used at a higher dosage and/or more
frequently than label instructions
- Livestock medicines administered by a route different
from label recommendations
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- Consult a veterinarian before using extra-label or off-label
antibiotic treatment(s)
- Make a permanent record of all treatments including the
animal ID, antibiotic given, dosage and number of treatments,
method of administration, and withdrawal time
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- Using antibiotic drugs not approved for use in
lactating dairy cattle
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- Use only approved livestock medicines, and only according
to label instructions or according to a veterinarian's prescription
- Use appropriate antibiotic tests
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- Purchasing cows that have been treated
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- Be diligent about obtaining treatment history of animal
at time of purchase from previous owner.
- Use appropriate antibiotic tests
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- Dry cows that have been dry-treated calve earlier than
withdrawal time on label
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- Confirm date of dry-off treatment for freshened cows
to determine whether adequate withdrawal time has been observed
- Consult your herd veterinarian • Use appropriate antibiotic
test
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- Medicated feeds for non-lactating dairy cows should be
stored separate from the milking herd feeds
- Remove all traces of medicated feed from storage and feed
handling equipment
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- Cows' udders treated with antibiotic ointments, salves
and sprays
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- Use only approved products
- Follow recommended with-holding times
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- Foot treatments where medicated solutions have been used
to combat infectious diseases of the feet
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- Use only according to a veterinarian's prescription
- If possible do not treat cows during milking to avoid
possible contamination with milk or milking equipment
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