Workers feed shrimp four times daily using a Purina brand food pellet produced by Cargil Inc. The farm, Agualarva S.A. de C.V., located near Guaymas, Sonora, Mexico, consists of 97 ponds, each 5 hectares (about 12.3 acres) in area. Each pond is stocked with 1.5 - 2 million shrimp, and yeilds a mature crop of about 1.2 to 1.5 million shrimp, or about 75 percent of the stock.