Ninety pigs approximately 5 weeks of age were used in an investigation of the influence of three levels of supplemental selenium (0, .60 and 1.20 ppm), and three levels of supplemental vitamin E (0, 60, 120 ppm) in a factorial arrangement, on reproduction. The pigs were confined to 18 pens with three gilts and two boars per pen. "/'he basal diet was formulated using high moisture ensiled corn, which was later changed to high moisture propionic acid treated corn, and soybean meal supplemented with minerals and vitamins excluding selenium and vitamin E. The basal dict contained .03
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