I don't consume dairy because of the cruelties of the milk industry, wherein, milk producing animals are kept pregnant so as to keep producing milk. Male offspring are by-product of that process and soon become veal. It's a long shot, but perhaps there is an animal that (through breeding or natural occurence) produces milk without having to be pregnant or nursing.
Similar to domestic chickens, which have been bred to produce almost one egg a day without impregnation (originally producing less that one a year in the wild).
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