Lactation Feed Intake
Retrospective analysis of herd records indicated that EW sows that consume > 12.3 lb/d did not exhibit the increased WEI or decreased FR that sows that consumed < 9.2 lb/d did (Koketsu et al., 1997; Koketsu & Dial, 1997).
Recently, early lactation nutrient intake has been shown to influence LH secretion by d 10, further supporting a role of feed intake in the return to estrus of EW sows (Koketsu et al., 1998; Jones & Stahly, 1999).