What's the difference between pastorage and pasturage?

Pastorage

Definition:

• (n.) The office, jurisdiction, or duty, of a pastor; pastorate.

Example Sentences:

Pasturage

Definition:

• (n.) Grazing ground; grass land used for pasturing; pasture.
• (n.) Grass growing for feed; grazing.
• (n.) The business of feeding or grazing cattle.

Example Sentences:

• (1) Rates of NPOH degradation increased when orchardgrass pasturage was supplemented with molasses.