RESUMO -Um experimento foi conduzido para verificar os efeitos da inclusão de três níveis (0, 8 e 12%) de farelo de algodão contendo 36% de PB (FA 36 ) e três níveis (0, 20 e 40 g/100 kg de ração) de sulfato de ferro (FeSO 4
Effects of feeding cottonseed meal with or without iron addition for starting piglets (15-30 kg)ABSTRACT -A trial was carried out to evaluate the effects of increasing levels (0, 8 and 12%) of cottonseed meal 36%(CM 36 ) and three inclusion levels (0, 20, and 40 g/100 kg) of ferrous sulfate -FeSO 4 (12% of CM diets) on the performance, plasma urea nitrogen (PUN) and hematological values of starting pigs (15-30 kg). Eighty pigs, barrows and females, averaging initial body weight of 14.81 ± 1.72 kg were allotted to a complete randomized block design with five treatments (0CM, 8CM, 12CM, 12CM+20FeSO 4 , and 12CM+40FeSO 4 ) and five replicates with two or three piglets per experimental unit. There was no effect of increasing CM 36 levels and ferrous sulfate addition on piglet performance.