I am therefore unable to provide any systematic evidence of disease increase or decrease, but I recognise animal rescue charities concerns when they become aware of dogs that are affected.
sicrhau bod y system ar gyfer ardystio pob marwolaeth nad oes angen ei chyfeirio at y crwner yn darparu craffu digonol i nodi ac atal gweithgarwch troseddol neu ymarfer gwael