As used in this chapter, unless the context otherwise requires:
 1. “Dealer” means a person required to be licensed as a dealer pursuant to section 163.30. However, a dealer does not include a person who operates a livestock market, as defined in section 459.102.
 2. “Department” means the department of agriculture and land stewardship.
 3. “Feeder pig” means an immature swine fed for purposes of direct slaughter which weighs one hundred pounds or less.
 4. “Financial institution” means a bank or savings association authorized by the laws of the United States, which is a member of the federal deposit insurance corporation, the federal savings and loan insurance corporation, or the national bank for cooperatives established in the Agricultural Credit Act, Pub. L. No. 100-233.
 5. “Purchaser” means the owner or operator of a farm as provided in section 163.30 who is delivered feeder pigs pursuant to a sales agreement in which the owner or operator is a party.
 6. “Sales agreement” means an oral or written contract executed between a dealer and a purchaser for the sale of feeder pigs.