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RFID Tags for Animals Identification

Views:1     Author:Site Editor     Publish Time: 2018-03-09      Origin:Site

Tagging all animals within the breeding herd (gilts, sows, boars and V boars) enables easy identification. Clear identification is necessary to ensure correct mating protocols, accurate recording and monitoring of individual performance records and for stock checks. Having individual identification provides accurate information for culling and the medicines book, and the animal ear tags can help you well.

On the use of ear tags

1. Tagging usually takes place when gilts enter the breeding herd or when sows lose their RFID tags.

2. In closed herds, replacement litters may also be tagged shortly after farrowing to enable clear identification, this may be by tag colour or an individual number.

3. A unique number should identify individual animals within the breeding herd.

4. Sows with lost RFID animal tags should be re-tagged with their original identification.

5. If a sow cannot be identified, a new number should be issued.

6. Some units slap gilts so a permanent identification is possible if the RFID ear tag is lost.

7. Gilts entering the breeding herd are usually tagged with consecutive numbers. 

Herds often change RFID tag colors or prefix digits based on intakes, this then matches the parity, or may use different colors based on different breeding systems within the herd.


1. Tagging must take place with minimal stress to pigs and staff.

2. Set up a good handling system where tagging can be achieved as quickly and easily as possible

3. Ensure the area is well lit and has a non-slip floor

4. RFID ear tags should be of a suitable size and type for the size and animal

5. Ensure that the correct pliers are available for the type of tag to be used

6. Check tags and pliers are clean and in working order; if necessary ensure that antiseptic wipes or disinfectant solution are available to clean pliers and/or ears

7. Tagging the sow/gilt in both ears means that if one RFID tag is lost, the remaining tag can still easily identify it.

Using Electronic ID tags has many advantages:

1. It offers another form of identification for each animal. Sometimes RFID visual tags get lost, become snagged on a fence, etc, whereas EID tags are small and are designed for high retention rates.

2. An animal can more quickly be identified in the chute (by scanning the RFID animal tag with a reader) rather than needing to have the animal be completely still to read a visual tag or tattoo number.

3. Scanning EID tags, instead of manually writing down an ear tag number, offers tremendous time-saving benefits while minimizing errors. As cattle are being worked or loaded into a trailer, their EID tag can be scanned while they are on the move.

Re-tagging When a Tag Has Been Lost

1. This can usually take place through the original hole (unless the ear has been ripped), reducing the stress on the sow

2. Many units carry out re-tagging at weaning when sows are regrouped

3. If animal ear tags are frequently lost, reassess your system and tagging practice, or make, or type of tag.

We hope that through the above methods and tips, you can more easily manage animals. As a leading China RFID ear tags manufacturer, we offer you various high-quality animal ear tags, you can contact us for more product information.

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