Statws A
Pwnc:
Amaeth
Ffynhonnell:
TermCymru
Enw, Gwrywaidd, Unigol
Herds with a clear test history are described as OTF. These herds are free to trade cattle as long as they meet the testing requirements and are demonstrated to be free of disease.
Defnyddir yr acronym OFT yn y ddwy iaith.