Bok
11-14-2012, 05:32 PM
BOULDER, Colo. – For western Colorado ranchers, the decision to sell cattle during tough times can hinge on a flower. Local cattle have developed immunity against the poisonous larkspur that live among more edible grasses. So a rancher culling a herd he can't afford to feed faces a problem restocking once economics improve: The replacements may die if they binge on the purple and pink larkspur.
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