fodder vs pasturage

fodder and pasturage both are nouns.

Word	Noun	Adjective	Verb	Adverb
fodder	Yes	No	Yes	No
pasturage	Yes	No	No	No

As nouns, pasturage is a hyponym of fodder; that is, pasturage is a word with a more specific, narrower meaning than fodder:

fodder: coarse food (especially for livestock) composed of entire plants or the leaves and stalks of a cereal crop
pasturage: bulky food like grass or hay for browsing or grazing horses or cattle

Other hyponyms of fodder include eatage, forage, grass, pasture, alfalfa, broad bean, horse bean, hay, stover.

fodder (noun)	pasturage (noun)
coarse food (especially for livestock) composed of entire plants or the leaves and stalks of a cereal crop	bulky food like grass or hay for browsing or grazing horses or cattle
soldiers who are regarded as expendable in the face of artillery fire	succulent herbaceous vegetation of pastureland

fodder (verb)	pasturage (verb)
give fodder (to domesticated animals)