stock raiser vs breeder

stock raiser and breeder both are nouns.

Word	Noun	Adjective	Verb	Adverb
stock raiser	Yes	No	No	No
breeder	Yes	No	No	No

As nouns, breeder is a hyponym of stock raiser; that is, breeder is a word with a more specific, narrower meaning than stock raiser:

Other hyponyms of stock raiser include stock breeder, beef man, cattleman, cow man, sheepman.

stock raiser (noun)	breeder (noun)
farmer who breed or raises livestock	a person who breeds animals