The present work was developed in order to determine the protein and energy apparent digestibility coefficients of the principal ingredients used in the pintado juvenile diets. Six hundred juveniles with initial weight and total length means of 9.80 ± 1.48 g and 13.00 ± 1.00 cm, respectively, were used. The modified Guelph system was appraised to collect feces. All the twelve test diets were constituted of 69.50% of the reference diet, 0.50% of chromium oxide used as inert marker, and […]

One experiment was conducted to evaluate the effects of five levels of coffee hulls (0, 8.7, 17.4, 26.1, and 34.8 kg/100 kg of fresh forage) on the bromatologic composition and IVDMD of elephantgrass silage. Fifteen plastic silos measuring .25 of diameter x .75 of height were used. In the ensiling process the forage received a pressure of 550 kg/m³. The results showed that the percentage of dry matter increased linearly with increasing of coffee hulls. It was estimated an increasing […]

The objective of this study was evaluate five corn (Zea mays L.) hybrids, while the dry matter “in vitro” digestibility, organic matter of whole plant and of the stem, at different maturity stages. The treatments were used in plots of 7 x 8 m in a randomized block design, with four replicates. The samples collected, of corn hybrid Pioneer (P32R21, P30R07, P3041, P30F33 and P30F80), were adopted trying to estimate phases of maturity of the plant: 30, 34, 38, 42 […]

This work was carried-out to study the effect of substitution levels of corn (COR) by cassava by-product flour (CPF) (25, 50, 75 and 100%) in the ration for sheep on voluntary intake, nutrients apparent digestibility and nitrogen (NB) and energy (EB) balance, pH and ammonia concentration (N-NH3) in ruminal liquid. Four male, castrated sheep, without defined race, with medium weight of 41.4 AW, in trial of digestibility were used, using the method of total collect feces and urine. The animals […]

The objective was to evaluate the equations system for determination of the TDN of six forages (corn silage, sugar cane with 1% urea, coastcross grass hay 1, coastcross grass hay 2, tifton grass haylage and elephant grass) and 12 concentrate feeds (corn grain ground, sorghum grain ground, corn germ, wheat bran, rice bran, babaçu meal, soybean meal, cotton meal, cotton seed, corn gluten, corn gluten meal and soybean hull) were determined using sheep as experimental animals. Forages and concentrates feed […]

This work was carried out to evaluate the recombinant bovine somatotropin effect (rBST – BST analogous, commercially obtained by recombinant DNA technique) on average daily gain (ADG), dry matter intake (DMI), organic matter intake (OMI), metabolizable energy intake (MEI) and neutral detergent fiber intake (NDFI), dry matter intake relative to live weight (DMI/LW), feed:gain ratio (F/G), carcass dressing percentage (CDP), dry matter apparent digestibility (DMAD), organic matter apparent digestibility (OMAD), crude protein apparent digestibility (CPAD), crude energy apparent digestibility (CEAD) […]

Two assays were carried out to evaluate the broilers performance, nutrients digestibility and the energy values of diets formulated with corn from different varieties (Experiment 1) and regions (Experiment 2), supplemented with an enzymatic complex. In each assay, were used 480 male broilers Hubbard, 14 days old, grown from 14 to 27 days to evaluate performance. The broiler chickens fed an experimental diets in 6×2 factorial design (varieties x region), in four replicates of 10 broilers in each experimental unit. […]

Three experiments were carried out to determine the nutritive value and to evaluate the performance of growing rabbits on fed isoenergy rations containing different pearl millet levels. In a digestibility assay (experiment 1) the nutritive values of Common, BN2 and Iapar IA 98301 pearl millet were determined for 40 male New Zealand White rabbits, 45 days old, allotted in a completely randomized design, with 10 replications. Pearl millet replaced 30% of reference ration in each treatment. Values of digestible energy […]

The snooks Centropomus parallelus are fishes with high commercial value and social and economic importance. They have potencial to be used in aquaculture, as they accept to be confined and to be fed with ration. The knowledge of the nutritional requeriments of the snook is basic to produce especific ration. Centropomus parallelus fed soybean meal, oat meal and rice meal, tested as ration ingredients with 0.5% to chromium oxide (Cr2O3), as a external marker, were used to determine the digestibility […]

Two studies (Digestibility and Performance) were carried out to evaluate the nutritional value and the feasibility of using defatted corn germ meal (DCGM) fed to growing-finishing pigs. I) Digestibility trial: Twelve pigs with initial body weight of 42.0±5.4 kg were hold in metabolism cage. Six pigs were fed a diet with 70% of basal diet plus 30% of DCGM and six received basal diet. DCGM showed an energy digestibility coefficient of 80.98% and metabolisation coefficient of 78.04%, that means 3,060 […]