Ces fiches sont le fruit d'un travail de collaboration entre les producteurs, les clubs agroenvironnemetaux auxquels ils ont adhérés, la Fédération des producteurs de bovins et le CRDA.  Elles relatent l'expérience des producteurs face à l'essai du calculateur de GES sur leur entreprise. /Claude and Louisette Gélinas began farming in 1975 when they bought Claude parents’ dairy farm located  in Beaudry in the Rouyn- Noranda region. They converted the dairy farm into a beef farm in 1986. More  recently, Louisette sold her shares to David, one of the couple’s five children. The father and son are now cow-calf producers with eighty four cows, twenty-six replacement heifers and eighty calves. They cultivate 150 of the 270 hectares of land they own. The operation has been certified Bio-Écocert since thebeginning of 2005.