“Producer-distributor” means any person that is both a producer of milk or cream and a distributor of milk, cream, or any dairy product. For the purpose of this chapter, a “producer-distributor” is a producer in any transaction which involves the delivering of bulk milk or bulk cream produced by him to a distributor, manufacturer, or any nonprofit cooperative association of producers, and is a distributor in any transaction which involves the pasteurization of bulk market milk or bulk market cream, or the packaging of such milk or cream in bottles, cartons, dispenser cans, or other consumer packages, or the sale or delivery of packaged milk, packaged cream, or packaged diary products.