Cows eat in a trough which controls the quantity of food ingested by each animal, in the new Herbipole research centre for the mountain farming of INRA (National Institute of Agricultural Research), during its inauguration in Laqueuille on September 16, 2015. AFP PHOTO / THIERRY ZOCCOLAN (Photo credit should read THIERRY ZOCCOLAN/AFP via Getty Images)
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AFP THIERRY ZOCCOLAN