Proportions of Concentrate and Corn Silage Rehydrated Ground Grain at Different Storage Times for Better Use of Starch by Lambs

The objective of this study was to evaluate the nutritional and bioeconomic potential of corn silage, rehydrated ground grain corn silage (RCGS), at different storage times associated with proportions of concentrates for better starch utilization by sheep. Forty Dorper-Santa Inês crossbred sheep were used, with an average body weight of 24 kg ± 3.9 kg, and an average age of 60 days. The sheep were confined for 63 days and distributed entirely at random with eight sets of repetitions and five experimental diets: Diet 1: ground corn dry; Diet 2: proportion of 850 g / kg of concentrate + rehydrated ground grain corn silage (RCGS) stored for 45 days; Diet 3: proportion of 650 g / kg of concentrate + RCGS stored for 90 days; Diet 4: RCGS stored for 45 days + 650 g/kg concentrate; Diet 5: RCGS stocked with 90 + 850 g/kg concentrate. As roughage, silage corn whole plant. Starch intake was higher (P<0.05) with the dry ground corn diet, however, digestibility was lower (P<0.05) for most nutrients compared to the RCGS diet. A smaller amount of starch was found in the feces of animals that received the RCGS diet. RCGS stored for 45 days and the diet with 650 g/kg of concentrate generates greater net income, increases nutrient intake, it is an alternative during the fluctuation of corn prices.