This study aimed to evaluate the effects of replacement of soybean meal (SBM) with soybean meal treated with tannin (SBMT) on the intake, digestibility, performance and characteristics of the carcasses of young cattle fed a high-concentrate diet. Forty- two Nellore bulls with body weight of 244.5 ± 4.99 kg were used. Diets had the inclusion of 7.5% SBM, with a proportion of that SBM (0, 33, 66 or 100%) replaced...
Effects of nitrogen supplementation associated with different levels of starch on voluntary intake, digestibility, and rumen and metabolic characteristics of cattle fed low-quality tropical forage (Brachiaria decumbens hay, 7.4% crude protein, CP) were evaluated using ruminal and abomasal cannulated steers.Five European×Zebu young bulls (186 kg body weight, BW) were distributed according to a 5×5 Latin square. ...
Conselho Nacional de Desenvolvimento Científico e Tecnológico; This thesis consists of two different scientific articles. The first one aimed to compare the estimates of the neutral detergent fiber content (NDF) obtained by the official method of the Association of Official Analytical Chemists (AOAC, method 2002.04) and by modified methods based on the use of pressurized environments or by direct using of indus...