Ureia em substituição ao farelo de soja na dieta de ovinos

Abstract

The objective of this study was to evaluate the replacement of urea by soybean meal on ruminal parameters, intake and digestibility of nutrients from sheep fed with forage palm meal. Four (04) rumen fistulated sheep were used. Samples were collected for determination of nutrient intake and digestibility, ruminal fermentation pattern through the collection of ruminal liquid at the following times: 12AM; 2 AM; 4AM; 6AM; 8AM; 10AM; 12PM; 2PM; 4PM; 6PM; 8PM and 10PM, for determination of pH, N-NH3 and AGCC. The substitution of soybean meal by urea did not influence dry matter intakes, crude protein; ethereal extract; organic matter; mineral matter, total carbohydrates; non-fibrous carbohydrates, neutral detergent fiber. The replacement of soybean meal by urea did not influence the apparent digestibility coefficients of dry matter, crude protein, ethereal extract, neutral detergent fiber, total carbohydrates and non-fibrous carbohydrates. For all ruminal parameters evaluated, pH, N-NH3 and AGCC, there was no influence of the levels of urea substitution by soybean meal on any of the observed variables. Urea may replace soybean meal up to 2.4% in the diet of sheep fed diets based on forage palm without altering intake, nutrient digestibility and ruminal parameters.