With data collected via electronic identification (EID) ear tags, there are fewer chances for human error associated with information input, resulting in more accurate health records. When combined with animal monitoring technology, electronic ear tags facilitate the accuracy of additional insights, including estrus cycles, milk production, rumination time, health, activity and more.
The latest monitoring ear tags notify dairy staff when animals are in estrus or require health intervention, using an LED light indicator to more easily locate animals that need attention.
Having individual animal identification readily available increases efficiency on the dairy and helps improve animal health by allowing managers to better monitor cows for the best care possible.
Proper ear tag application helps keep costs down by preventing tag loss and the labor and handling required for re-tagging. Brush up on your tagging knowledge with a review of these best practices for the most efficient application.
- Order the right tags for your needs
Ensure you have enough tag and applicator supplies for several months (but not more than a year) of calving. Processor traceability programs and breed associations may require specific types of ear tags and application times. Check requirements to ensure that your tags are in compliance.
For instance, animals registered with a breed association may require specifically approved tags, one of which in many cases must be an official ADT traceability tag. Official USDA 840 ear tags require a Premise ID number to order.
- Prep your tools and area
Create a workstation area that offers safety and efficiency for quick work. Ensure that your applicators are clean and in good working order.
Newer applicators available today can enhance device application with more ergonomically friendly handling to improve safety and comfort for both the calf and the handler. For example, a new tag applicator from Allflex Livestock Intelligence requires less application force, making it quieter and easier to use for tagging.
Use tagging components designed by the manufacturer to work together. Avoid mixing tagging components from different brands as they may not be compatible and could result in tag failure or early loss.
- Maximize your timing
Consider the most efficient timing for tag application and how you can minimize the amount of handling. Tagging the calf at birth – as soon as it is dry and before it is transported to an individual hutch or pen – can help ensure accurate dam information and identification numbers are recorded.
Since you already have the calf restrained, it is also a good time to take tissue samples for genomic screening and bovine viral diarrhea (BVD) diagnostics.
- Establish your sanitation protocols
Proper hygiene helps prevent the spread of bovine papillomavirus, bovine leucosis, and other bacteria and viruses from calf to calf.
Safe, sanitary practices include hand washing and wearing gloves for tagging, disinfecting the application site, tag and tools frequently, and placing equipment on a hygienic surface.
- Thoroughly train (and regularly retrain) all workers
Using the applicator manufacturer’s instructions, teach all caregivers how to load the tag, pin and button into the applicator. A common mistake is applying the tag backwards, so be sure to emphasize proper tag loading.
If the applicator pin is bent or broken, replace it with one that’s in good condition. Check the alignment of the tag by closing the applicator enough to ensure the two ends meet properly before tagging the animal.
- Properly position calf
It is a good idea to tag the calf after separation from the dam to prevent upset and help the person tagging stay focused on the task.
Approach the calf calmly and gently position the calf’s head between your legs, facing your head in the same direction as the calf for easy access to its ears. Make sure the ear is clean and clear of any debris or hair.
Hold the calf’s head securely to prevent jerking to ensure correct application and prevent tearing or injury to the handler or calf.
- Place tag in correct area
Proper placement of tags is more comfortable for the calf and reduces re-tagging in the long term.
If applied too close to the tip of the ear, the tag may snag and easily tear out. On the other hand, if applied too close to the head where cartilage is thicker, the tag may not fit properly and cause pinching or unnecessary pain.
Insert the tag in the middle one-third of the ear, taking care to avoid the two large veins that run parallel to each other and the cartilage ridges in the middle of the ear. Puncturing either of those areas may cause excess bleeding, infection or deformation of the ear.
Swiftly and securely close the tag applicator in one movement to prevent damaging any electronic components in the tag and reduce the potential for the calf to struggle.
After application, examine and rotate the tag to make sure it moves freely. Repeat this process for the other ear.
- Monitor for infection or irritation
Watch calves with new tag applications for at least several days to ensure the area does not become irritated, snagged, or infected. During feeding is an ideal time.
It may be recommended to continually disinfect the ear tag site with topical insecticide (i.e., hydrogen peroxide) for five to seven days following application to prevent infection.
Should any issues arise, consult your veterinarian for treatment advice. Always make sure an infection has cleared before reapplying the tag.
Set your operation up for success
Ear tagging is a fundamental means of identifying and tracking newborn dairy calves to help maintain animal identity from calf raising to the milking string. It is worth the extra effort to make sure dairy workers are informed about the best ways to perform this essential task.
Giving extra care and attention to proper tag application techniques and best practices helps ensure quick and comfortable tagging, reducing stress on both the calf and the caregiver and promoting long-term tag retention.
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