This study was conducted to evaluate the efficacy of adding 13.35% ground wheat straw to a corn-soybean meal gestation diet for 3 successive gestation-lactation cycles compared with sows fed a control diet without straw. In conclusion, when the daily intake of the basal gestation diet was equalized for both treatments, the addition of 13.35% ground wheat straw to the gestation diet improved sow and litter performance, with increases in litter size and
total litter weight at birth and weaning compared with control sows and litters.

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