(4) "Livestock market operator" means any person, firm, or
corporation engaged in the business of operating public auctions
or sales of equines or of operating barns and yards for the
containment of equines held for the purpose of auction or sale.
"Livestock market operator" means any person, firm, or
corporation engaged in the business of operating a sales
establishment, public auctions or sales of livestock, or barns and
yards for the containment of livestock held for the purpose of
auction or sale [...]