O blith yr oddeutu 450,000 o gŵn a geir yng Nghymru, amcangyfrifir bod gan oddeutu 58% ohonynt ficrosglodyn. Golyga hyn y byddai angen rhoi microsglodyn ar tua 190,000 o gŵn. Os caiff y microsglodion eu rhoi mewn milfeddygfeydd gall y milfeddygon hefyd archwilio iechyd y ci ar yr un pryd.
Of the estimated 450,000 dogs on Wales, it is estimated that some 58% are already microchipped. This means that there are approximately 190,000 dogs that would need to be microchipped.  If the animals are microchipped at veterinary practices, there are added advantages of a veterinary surgeon running a health screening check at the same time.