Another character from the Do You Say . . . ? ‘poem’ and all that I really know about ‘de Z cow’ is that she’s been known to ‘utter’ the occasional ‘grouse’. Could it be that she’s rather proud of her ancestry? If she really is ‘de Zeeland’ that’s not so far from Freisland, so she could be a pedigree Holstein Friesian.
More likely ‘DeZee’ is a randomly generated name-tag number and she probably usually gets called ‘Daisy’. I have a feeling that she won’t like that.