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GUCO means a lot more than a feed mill to Grupo Arcoíris. Since established in 1978, it led to the creation of other corporations related to farming or derivates such as products and services.

At the beginning, the main goal was to produce feedstuffs to supply porcine cattle. Soon after, the rabbit and ovine sectors were included. This change implied an adaptation of the existing machinery and an extension of the premises. As the company kept growing, they considered changing the organization and restructured the representation system. It was then that the Council of Local Delegates was created to pursue the idea of closer involvement and communication amongst the members, who are located in 50 different cities. In addition, the 12-member board continues its labour at an executive level.

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