作者: S.P. Montgomery , J.S. Drouillard , J.J. Sindt , T.B. Farran , H.J. Labrune
DOI: 10.15232/S1080-7446(15)31412-1
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摘要: Abstract Two experiments were conducted to evaluate the effects of monensin and tylosin concentrations in limit-fed, high-energy growing diets for beef cattle. In Experiment 1, crossbred steers (n = 164; mean BW 261 kg) offered at 1.8% (DM basis) provide 33, 44, or 55 mg monensin/kg (M33, M44, M55, respectively) then finished on a common diet ad libitum. Monensin concentration did not affect rate DMI (P>0.71) performance (P>0.74) during period. Increasing period tended increase (quadratic, P