The results indicated that sows mated with US Duroc boars produced slightly higher litter size (11.88) than that mated with Taiwan Duroc (11.54), but there was not a significant effect.

• 结果表明，在繁殖力性状上，美系杜洛克公猪所配母猪的产仔数略高于台系杜洛克（11.；88头：11