The cost of inclusion of citrus pulp was evaluated in a qualitative feed restriction program using performance data of 36 pigs of Topigs lineage (from 83.7±5.1kg to 129.8±1.9kg) fed with crescent levels of citrus pulp (0, 10, 20, and 30%). The animals were slaughtered when they reached 130kg. The value paid for animal and its feeding cost were discounted from the carcass value (R$), according to each treatment. No effect (P>0.05) of the inclusion of citrus pulp on ration cost and gross income was observed. A negative linear effect (<0.05) on partial net income with the increasing participation of the citrus pulp in diets was found. The decreasing trend in the partial net income was caused by the reduction on carcass weight of animals fed on crescent levels of citrus pulp. Considering the increase on corn, soybean, and swine prices from June 2005 to May 2006, 12 different sceneries were determined for partial net income analysis. In all situations, linear reductions on partial net income were observed as a function of citrus pulp inclusion, evidencing that the ingredient was not efficient in promoting profits for producers.
swine; cost; feed restriction; gross income; partial net income
