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MAC Tailpaint is an
easy to use paint system for detecting heat in dairy and beef cattle.
When to use Tail Paint
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- Immediately after calving or at least three weeks before breeding, tail paint can be used to identify cycles or pre-mating heats.
- During the time when cows should be mated to identify cows to be bred.
- After the cow has been bred.
- After the cow has been confirmed pregnant.
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Complete Marking Program
Color 1 - Apply 21 days prior to the beginning of your A.I. program. This indicates which cows are cycling.
Color 2 - Apply immediately prior to the start of your AI program. This indicates cows coming into heat for insemination.
Color 3 - Apply 24 to 48 hours after insemination. This shows which cows have been inseminated.
Color 4 - Apply when the cow is confirmed pregnant.
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- Ideal for complete/custom marking program

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| Research Proves MAC Tail Paint is More Accurate |
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MAC Tail Paint |
Chalk |
# Bred - based on rubbed product |
200 |
100 |
# with low progesterone on day 0 and high progesterone on day 8* |
176 |
75 |
Accuracy of heat detection |
88% |
75% |
Arun P. Phatak, DVM, Ph.D.: Results of Comparison of Tail Paint and Crayon Chalk as Aids to Heat Detection; 1999. Data on file at Universal Marketing Services
*If day 0 shows low progesterone, this indicates the cow was possibly in heat. If at Day 8 progesterone is high, this indicates the cow has developed a corpus luteum and is cycling.
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Proven to be more effective than chalk, identifying nearly 90% of cows in heat
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How To Tail Paint
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Apply a 2" wide by 6" long strip along the ridge of the backbone right above the tail. Make sure you do not apply too much.
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Spray or paint against the lay of the hair for the first coat, then with the hair for the second coat.
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Check the paint strip at each milking. In 90% of cases, most of the paint will be rubbed off or clearly ruffled when a cow is in heat. Paint is rarely removed by occasional mounting of cows when not in heat.
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Cows detected in heat and then inseminated should not be repainted until the following milking. Use a different color when repainting inseminated cows. Open cows are then easier to identify.
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Tailpaint will last up to four weeks unless that coat hair becomes loose which can happen. Touchups with bottle or aerosol tailpaint are required if this happens.
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Easy to use aerosol application makes management quicker, simpler and cheaper
- Several uses
- Provides great coverage and lasts 14-28 days
- Does not require constant touch-up
- Rarely removed by indiscriminate mounting of non-estrus cows
- Easy to recognize in four bright colors; red, blue, green, orange
- Oil based waterproof colors make identification simple in all weather conditions
- Over 70 marks per container
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