Date Full Report Received


Date Abstract Report Received



Primary Investigator:

Restricting energy intake during gilt development lowered costs associated with gilt development and increased subsequent productivity of these females. The study modeled costs and value of market pigs through four parities from production data of 631 gilts that were fed on an ad libitum basis until breeding or were restricted to 75% of ad libitum energy intake from 123 days of age until breeding (approximately 230 days of age). Gilts developed with energy-restriction had a greater probability of reproductive success than those developed with ad libitum feeding. The budget showed that progeny of both LWxLR and L45X gilts developed with energy-restriction generated greater profits than progeny from their littermates developed with ad libitum feeding.