Improved cattle disease controls – increased sensitivity of testing regimes, for example in dealing with inconclusive test results and greater use of the gamma interferon blood test.
Hefyd, er bod mwy o wasanaethau wedi ailddechrau, mae mesurau rheoli ac atal heintiau ychwanegol wedi’u rhoi ar waith sydd wedi effeithio ar faint o brofion diagnostig y gellir eu cyflawni.