Three experiments were carried out to evaluate the effect of adding enzymatic complex (EC) on the nutritive value of soybean hulls (SH) in starting pig feeding. The enzyme complex used contained α-galactosidase, β-glucanase, galactomananase and xilanase. In experiment 1, the digestibility of soy bean hull with addition of enzyme complex was determined at three levels (0, 200 and 300 mg/kg), using piglets with initial body weight of 22.49 ± 1.73 kg. None of the enzyme complex levels affected the soy […]

This study was carried out to evaluate 14 genotypes of six winter species for yield and nutritive value of early forage and silage or regrowth grain. The experiment was in a randomized complete block design with three replications, so that the plots consisted of seven 5.0 m-long rows spaced at 0.2 m. The seeding date was April in the three study years and fertilization followed the recommendations for the crops. During the tillering period and after cutting, urea was applied […]

The objective of this study was to evaluate the replacement of giant forage cactus (Opuntia ficus indica Mill) by small forage cactus (Nopalea cochenillifera) in diets for growing cattle on the nutrient intake and digestibility. Two incubation periods were also assessed (144 and 288 hours) to obtain the indigestible fractions of dry matter, neutral detergent fiber and acid detergent fiber. Five Holstein heifers were used, approximately 220 kg initial weight placed in a 5 × 5 Latin square design and […]

The objective of the present study was to propose the use of protein free diet (PFD) associated with synthetic amino acids (AA) as method to determine the amino acid and protein endogenous loss in broiler chicks, as the normal endogenous flux is underestimated in PFD use. Eighty-four Ross 308 male chickens were used, aged from 17 to 22 days in a randomized complete design, totaling two treatments with six replications, with seven birds per experimental unit. The endogenous amino acid […]

The objective of this study was to evaluate the dry matter and nutrient intake and digestibility and to estimate the energy value of diets with the inclusion of soybean hulls (0, 25, 50, 75 and 100%) replacement of ground corn in the diet of kids goats. The rations consisted of oat hay, ground corn and/or soybean hulls, soybean meal and mineral supplement. Five Saanen kid goats (32.44 ± 4.00 kg), housed in digestibility cages, in a 5 × 5 Latin […]

The objective of this study was to assess the effects of including animals or vegetable fats and mineral on the acceptability, nutrient digestibility and triglyceride plasma concentrations and cholesterol in horses. Four foals aged 13 to 16 months were used receiving diet containing grass hay and concentrate. The experimental design was a Latin Square; using orthogonal contrasts. The acceptability was not influenced by the quantity nor the type of oil added to the diets. The smallest dry matter (DM) digestibility […]

The objective of this study was to evaluate the chemical composition, metabolizable energy, the digestibility coefficients of dry matter, crude protein and the amino acids contained in yeast extract supplied to broiler chickens. Two metabolism assays were carried out. In the first assay, 200 14-day old Cobb-500® male broiler chickens were used kept in metallic cages in a randomized complete design in groups of 10 birds per experimental unit. The total excreta collection method was used to determine the apparent […]

A study was conducted to evaluate the economic results and the performance of nursery piglets fed diets based on the digestible nutrients of high-moisture corn silage (HMCS). Eighteen crossbred piglets (Landrace × Large White) with an average initial weight of 16.01 kg, were used in the digestibility experiment and 60 crossbred piglets, with an average initial weight of 7.11 kg were used in the performance experiment. A randomized block design was used in both experiments. In the digestibility experiment, a […]

The objective of this study was to evaluate the intake, total and partial dry matter (DM) digestibility and the nutrients and ruminal parameters of steer fed diet based on cottonseed processing residue (CSPR) supplemented with sugarcane dried yeast. Six steers, with rumen and duodenal cannulae were fed diets consisting of 80% CSPR and 20% concentrate, consisting of corn, urea and yeast at levels of 0, 20 or 40%. A randomized block design was used to analyze intake and digestibility and […]

The use of indigestible dry matter (iDM) and indigestible neutral detergent fiber (iNDF) as internal markers to estimate digestibility in lambs was evaluated. Data and samples were obtained from six independent digestion trials with lambs housed in metabolism cages given ad libitum different forage and concentrate feedstuffs. Indigestible residues were determined after 144 hours of in situ incubation of feed and faeces samples. Recovery rate varied from 64.8 to 108.5% for iDM, and from 49.5 to 67.9% for iNDF. As […]