The Value of Certain Surfactants and Other Growth Stimulants in the Rations of Young Dairy Calves

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Abstract
Holstein and Jersey calves (84) were used in 2 experiments to evaluate certain surfactants and other growth stimulants in the rations of young dairy calves. It was found in the 1st experiment that the surfactants Ethomid C/15 and Arquad HT alone or in combination stimulated the growth of the calves. An Aureomycin supplement or Aureomycin plus Ethomid C/15 also improved the growth rate of the calves. In the 2d experiment neither surfactant fed, Ethomid C/15 or Arquad HT, nor tri-methylalkyl ammonium stearate, stimulated growth, but an Aureomycin supplement did, as well as a combination of Aureomycin and Ethomid C/15. The combination, however, did not produce any greater growth response than Aureomycin alone, thus indicating no supplemental effect of the surfactant on the antibiotic. Neither of the surfactants nor tri-methylalkyl ammonium stearate had any beneficial effects on calf scours and in some cases increased the incidence of scours, especially tri-methylalkyl ammonium stearate.