<![CDATA[This study aims to determine the optimal timing of weaning piglets from the sows so that the sows can return to estrus, thereby increasing the efficiency of production and reproduction of these sows. The design used a randomized block design (RBD) with three treatments, the piglets weaned at 25 days (A), 28 days (B), and 30 days (C) in three pig farms. Each treatment consisted of three replications, and each replication consisted of two of the sow. The variables observed: litter size, bodyweight of weaned piglets, estrus after weaning, and the percentage of mortality of piglets after weaning. The results showed that the bodyweight of the weaning piglets and the mortality after weaning were 6.83 kg; 1.33% (A), 8.17 kg; 1.17%(B), and 9.0 kg; 1.17% (C) significant (P<0.05) in treatment B; The sows were on estrus after weaning an average of 3.67 days (A and C) and 3.33 days (B) was nonsignificant (P>0.05). The litter size reaches 10.17 head (A), 13.0 head (B) and 11.5 head (C) were nonsignificant (P>0.05). The conclusion of this research is the optimum time for the implementation of weaning piglets is 28 days old in the pig farming business.]]>
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