Growth, nitrogen metabolism, and cardiac responses to clenbuterol and ketoclenbuterol in rats and underfed cattle

Two beta-adrenoceptor agonists, clenbuterol and ketoclenbuterol, were examined for their effects on growth and cardiac tissue. In female rats, clenbuterol caused a 48% increase in weight gain (P < .05), with improved feed efficiency (26%; P < .1) and increased muscle mass (9%; P < .1). Keto...

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