PHOTO 4 Feed lot et lagons

17 mars 2015 - Posté par Alain Grandjean - ( 0 ) Commentaires

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PHOTO 4 Feed lot et lagons

Government rules require feedlots to contain the waste they produce, which often means controlling water runoff in a series of lagoons and retention structures. Viewed from the air, retention ponds are visible at a feedlot in southwest Kansas. KEITH MYERS/The Kansas City Star

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