Soybean Meal, Macerated Full Fat Soybean and Micronized Soybean on Weaned Piglets Fed at 21 Days of AgeSeventy two piglets weaned at 21 days of age with live weight of 5.01 ± 0.90 kg were allotted to a randomized block design, replicated six times with four animals per experimental unit. The treatments were constituted of diets with the following protein sources: soybean meal, macerated full fat soybean and micronized soybean. The diets were fed from weaning to 42 days (initial-1 phase) and from 43 to 56 days of age (initial-2 phase). The residual effects of the treatments provided in the nursery period were evaluated in the growing and finishing phases. Considering the initial-1, initial-2 and total period of permanence in the nursery, the piglets fed diet with soybean meal showed higher performance than the others, and the ones fed macerated full fat soybean, higher weight gain than those fed micronized soybean in initial-1 phase and total period. The benefits on weight during nursery phase should be observed in the growing and finishing phases. The animals fed soybean meal reached the ideal weights of 50 and 95 kg at minor age, compared to those fed micronized soybean. In relation to those fed diet with micronized soybean, the reduction of period was of 5 days in the growing phase, 6 days in the finishing phase e 11 days to reach 95 kg of live weight, compared to those fed soybean meal. Among the protein sources, the soybean meal is more indicated in the piglets feeding after weaning. The macerated full fat soybean must be evaluated as an economic alternative in the replacement of soybean meal.
nursery; growing; subsequent performance; finishing
