The Mode of Action of Antibiotics in the Nutrition of the Dairy Calf. I. Effect of Terramycin Administered Orally on the Performance and Intestinal Flora of Young Dairy Calves

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Abstract
The need for information on the mechanism(s) involved in the effect of certain antibiotics in stimulating the appetite of nonruminating calves and in causing certain benefits to the animal led to this investigation, l~if - teen 3-day-old calves were kept on the experiment for 9 weeks. The results suggest that the presence of enteric streptococci limits the growth potential of young animals. The need for further study to develop improved techniques for determining the extent to which antibiotics affect the intestinal flora of animals is indicated. Editor.