Effect of Calcium: Phosphorus Ratio, Oleandomycin and Protein Level on the Performance of Early-Weaned Pigs

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Abstract
Increasing calcium from 1.2% to 4.0% in early-weaning pig rations significantly decreased average daily gain and the apparent digestibility of total carbohydrate, but had no other adverse effects. The inclusion of oleandomycin in early-weaning pig rations resulted in a significant increase in average daily gain, average daily feed consumption and feed efficiency. The apparent digestibility of the gross energy, crude protein and ether extract of rations containing this antibiotic was significantly increased. The apparent digestibility of gross energy, crude protein and total carbohydrate was significantly higher in 30% protein rations than in 22% protein rations; however, gains were equal in magnitude and efficiency. Copyright © . .