For more information on the BTV-3 vaccines including permits and licences visit Bluetongue serotype 3 (BTV-3) vaccination (on gov.uk).
I gael rhagor o wybodaeth am y brechlynnau BTV-3, gan gynnwys trwyddedau a hawlenni, ewch i Bluetongue serotype 3 (BTV-3) vaccination (ar gov.uk)