[fifixx]

I bought in weaners (so button eartags with the farm inof), they have been here for 6 mths and off to slaughter tomorrow. 

Do I still slapmark with my details and tell the abattoir to ignore the buttons?

[oaklandspigs]

They will need the herd no. of the departing holding - which is yours - so if you normally slapmark, then yes they'll need your slapmark.
 
The abattoir will normally look at slapmark first, so will ignore the buttons
 
 

[Tudful Tamworths]

They didn't need to be tagged by the breeder in order to move them to you - but the breeder may have tagged just for management (litter ID) purposes. As oaklandspigs says, the important thing is that they bear YOUR herd mark - either slapmark or tag - when they go for slaughter.

[fifixx]

thanks all - now to catch them for collection at 1!!