Livestock identification must be complied with by law and is integral for disease prevention, control and eradication and the protection of public health.
Mae'n ofyn cyfreithiol cydymffurfio â'r rheolau adnabod da byw ac mae'n rhan bwysig o'r ymdrech i atal, rheoli a dileu clefydau a diogelu iechyd y cyhoedd.