Cows given rbST reduce environmental impact, study shows
11 Jul 2008

Cows that receive recombinant bovine somatotropin (rbST) make more milk, all the while easing natural resource pressure and substantially reducing environmental impact, according to a US study by Cornell University.
Producing milk uses large quantities of land, energy and feed, but rbST -- the first biotech product used on American farms -- has been in agricultural use for nearly 15 years.
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