The objective of this research was to evaluate total rations with differents levels of swine waste on the productive performance of sheep, in a feedlot system during 56 days, where seven days of adaptation and 49 days for data collect. Were utilized 32 Santa Inês hair sheep, aged seven months aproximately and with average body weight of 25.2±3.9 kg, distributed in four blocks as for body weight. A randomized complete block design, with four treatments (Swine waste levels: T1=0%, T2=4.2%, T3=8.4% and T4=12.6%) was followed. No effect of treatments to dry matter intake (89.44±1.01 gDM/kgW0.75 and 3.83±0.06% of the BW), average daily gain (200.36±0.03 gBW/animal/day) and feed conversion (5.73±0.50 kgDM/kgBW gain) was observed. The results of treatments T1, T2, T3 and T4 for crude protein intake were 0.71, 0.72, 0.80 and 0.78% of the BW and 16.81, 16.68, 18.53ª and 18.03 gCP/ kgW0.75, and for NDF intake 1.61, 1.72, 1.91 and 1.70% of the BW and 35.82, 40.27, 44.25 and 38.81 gNDF/kgW0.75. The inclusion of swine waste until 12.6% on the diets for lamb males, in feedlot system had satisfactory result for average daily gain of body weight and feed conversion, and the decision of utilization of this by-product will be in function of the relative price of the others ingredients, focusing to reduce cost of the diet.
by-products; feedlot sheep; swine waste; termination phase
