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This study aimed to compare the effect of two types of feed, gruel versus pelleted, on the productive response of litters and their indirect effect on sows. Litters of 30 sows were used for 21 days after birth. The following treatments were evaluated: TC) piglets fed only with mother's milk; PT) similar to TC plus pelleted feed; and PP) similar to TC plus porridged feed. The pellet and porridge were offered to litters from day 5 to day 21 of lactation, evaluating two experimental phases: phase 1 (F1): d5-13; and phase 2 (F2): d14-21. At the beginning and at the end of each phase, the feed consumption (CA) and weight gain (GP) in the piglets were recorded. Additionally, the CA and back fat (GD) were determined in sows. The litters fed with PP had a higher CA than the litters supplemented with PT in F1 and F2 (P<0.05). Additionally, the litters supplemented with PP had a higher GP in F2 than the litters of the TC and PT treatments (P<0.05). There were no significant differences between treatments in the AC and GD of the sows (P>0.05). The supplementation of a supplementary supplementation in the form of porridge improved the weight gain of the litters during lactation, without exerting an indirect effect on the reserve of back fat and feed intake of sow feed.
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