[Farmernick]

Hi,

I’m selling around 90 store lambs which I will be tagging with EID tags with our flock number on. However, 20 odd lambs were bought in a few weeks ago and already have a tag with number from holding of birth. Do I need to reflace these ones with my own number or just the ones that I bred here?

Thanks!

[BenBhoy]

Just tag the ones born on your holding.


Only time you replace is if both tags lost, then you replace with red ones with your number on.

[Fleecewife]

The whole point of the tagging system is so the animals can be traced right back to their holding of birth in the event of a disease outbreak, so no don't change the tags. 
The tagging system is very poorly explained, and is one of the most frequent 'help' questions on TAS.  Defra gobbledegook!