milcher vs milch cow

milcher and milch cow both are nouns.

Word	Noun	Adjective	Verb	Adverb
milcher	Yes	No	No	No
milch cow	Yes	No	No	No

As nouns, milcher and milch cow are synonyms defined as:

Other synonyms of milcher include dairy cattle, dairy cow, milk cow, milker.

milcher (noun)	milch cow (noun)
cattle that are reared for their milk	cattle that are reared for their milk