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they dont have pierced ears, they just have their tag on their ear with usually a number relating to their owners farm or whatever they are used for.

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14y ago
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13y ago

Identification purposes. A number is put on the tag to easily identify which bovine is which, and, for RFID purposes, to keep track of as far as record keeping is concerned.

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Q: Why do milking cows have pierced ears?
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