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Ear Tagging Systems

A tag that falls out or cannot be read is worth nothing. A good tagging system pairs the right tag with careful application and good records.

Why identification comes first

Everything on the ranch depends on knowing which animal is which: breeding records, treatments, weights, culling decisions and sale records. Without clear ID, you rely on memory, which fails at the worst time.

Good identification also supports animal health, disease tracing and many beef quality programs.

Order tags well ahead of calving or working day. Tags that arrive late or in the wrong sequence cause confusion, and a spare supply is handy for lost tags and purchased animals. Good ID also helps when you buy replacements or sell animals, because the next owner and any inspector can match animals to their papers.

Tag types

Common types include visual plastic tags, tags with electronic chips and metal tags. Visual tags are easy to read from a distance, while electronic tags speed up data entry. Many ranchers use both.

Choose tag size and style for the age and size of the animal. Ask your extension office or dealer which tags hold up in your conditions.

Write the numbers on the tags only if the manufacturer allows it, and use methods that will not fade. Check printed or marked tags before you apply them, so duplicates and misprints are caught early. Test a few tags on quiet animals first to see how they hold, how readable they are and whether they cause irritation, before ordering a large supply.

• Visual tags: easy reading, many colors and sizes
• Electronic tags: quick scanning and data
• Combination approaches: visual plus electronic
• Tags for calves versus adult cattle

Numbering systems

Decide on a simple, consistent numbering system. Many ranches combine a year or group letter with a sequence number, so an animal's cohort is clear. Avoid repeating numbers in the same herd.

Record the system in writing so helpers use the same logic. A clear plan prevents duplicates and confusion when animals are bought, sold or replaced.

Think about visibility from a distance. Tag color, size and number placement affect how easily you can read tags in a pen, on pasture or in a chute. Choose combinations that help you identify animals without handling them.

Applying tags properly

Tagging is a procedure that can cause pain, injury or infection if done carelessly. Use the applicator and tags the manufacturer designs for each other, keep equipment clean and place the tag as instructed. Restrain animals safely and calmly.

Ask your veterinarian to show you correct placement and to discuss welfare, hygiene and aftercare. Check tagged animals for signs of swelling or discharge, and call your vet if you see them.

Teach helpers to read and call out numbers clearly. A second person who repeats the number back reduces errors in the chute. Cleanliness at application matters because the ear is a sensitive site, and a little care before and after reduces the chance of trouble.

Tag retention and replacement

Tags can be lost to fences, feeders and brush. Check tags during routine handling and replace missing ones promptly. Record the link between the old and new numbers so history is not lost.

Use a backup, such as a second tag or another approved method, for valuable animals. Keep a list of animals missing tags so you do not forget them at the next working.

Linking tags to records

A tag is only as useful as the record behind it. Record each animal's tag number with its dam, birth date, sex, treatments and other key facts. Keep records in a book, spreadsheet or app that you back up.

Check tags against records at each working to catch errors early. Clean data makes selection, culling and marketing decisions much easier. Run a quick check of tag numbers against your list whenever cattle go through the chute, and fix any mismatch the same day.

Rules, programs and common mistakes

Rules and program requirements about official identification vary by state, destination and buyer. Ask your state veterinarian, state department of agriculture and USDA APHIS what applies, and ask your buyer or verification program about their tag requirements.

Common mistakes include duplicate numbers, tagging in a rush, using dirty equipment and failing to record changes. Slow down, keep it clean and write it down.

• Check requirements before buying tags
• Use clean equipment each time
• Record tag numbers right away
• Check tags every time cattle are worked

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