ABSTRACT Two experiments were carried with broilers from 29 to 42 days of age for the nutritional evaluation of dietary chia. Thus, the nitrogen-corrected apparent metabolizable energy (AMEn) and the apparent metabolizability coefficients of gross energy and ether extract of chia seeds and oil, toasted soybean grain (TSG), and soybean oil were determined in the experiment I, by total excreta collection method, using 120 broilers. Each experimental diet (reference diet [RD] and four diets with the tested feedstuffs) was evaluated […]

Two experiments were carried out in order to estimate the nutritional value and the performance of growing rabbits fed different levels of pearl millet (ADR 7010). In the digestibility trial, nutritional values of pearl millet were determined in 22 45-day-old New Zealand White rabbits, allotted in a completely randomized design, subjected to two treatments – a reference diet and a test diet with 70% of its volume composed of reference diet and 30% of pearl millet – and 11 replications. […]

Performance and apparent digestibility were evaluated in sheep fed diets containing different amounts of faveira (Parkia platycephala) pods in replace to corn. Twenty crossbred Santa Inês lambs of approximately four months of age and average 21 kg were kept in individual stalls in randomized blocks and distributed according to weight. The following characteristics were evaluated: average daily gain, feed conversion and voluntary intake of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber […]

It was used 648 Japanese quails with 91.1% of egg production in a completely randomized experiment design with nine replicates and eight birds per experimental unit. The diets were evaluated in a 3 × 3 factorial scheme (food × feed formulation) through bird performance measures and egg quality. The interaction among alternative food and formulation influenced feed intake. Both performance and internal and external egg traits were not affected by food alternative. Weight gain, laying rate, egg average weight, egg […]

Feeds for pigs can be attributed different energy values according to, first, the step considered in energy utilization (DE: digestible energy, ME: metabolizable energy and NE: net energy) and, second, the method used for estimation at each step. Reference methods for evaluating DE content are based on in vivo digestibility measurements; indirect estimates of DE values are obtained from in vitro methods or prediction equations based on chemical characteristics. Methods have also been proposed for estimating urinary energy (and gas […]

This research was developed to estimate the energy values (TDN) of feeds, concentrate and roughage, through equations proposed by NRC (2001) and validate from the comparison among TDN values estimated by these equations and those observed in the total collection feces. Five concentrate feeds (wheat bran, soybean meal, corn ground, whole soybean and whole cotton seed) an five roughage feeds (brachiaria hay, corn silage, tifton haylage, elephant grass silage and elephantgrass) were evaluated by using 20 crossbred Holstein x Zebu […]

Two experiments of metabolism using broilers were carried out to determine the value for apparent metabolizable energy (AME) of soybean oil, the dry matter metabolization coefficient (DMMC), and the nitrogen retention (NR) in the isocaloric rations on two differents ages: growing phase (22 30 days old) and final phase (42 50 days old) and four inclusion levels of soybean oil: 0; 3.3; 6.6 and 9.9%. The experiments lasted eight days, with three days of adaptation period and five days for […]

Two experiments were carried out, with the aim of evaluating the use of corn processed or not by extrusion, in the feeding of growing rabbits. In the experiment 1, 21 White New Zealand rabbits, 12 males and 9 females, with 55 days of age, were used on digestibility assay, with the aim of determining the nutritional value of corn, extruded or not. The rabbits were distributed in a completely randomized design with three treatments and seven replications, with one reference […]

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 […]

Twenty Holstein intact calves, averaging 160 days old and initial live weight of 163 kg, were assigned to a completely randomized design to evaluate the effect of five replacement levels (0, 25, 50, 75 and 100% in dry matter basis) of corn for cassava meal on the intake and apparent digestibility of dry matter, crude protein, neutral detergent fiber, starch and gross energy of the experimental diets. There was no effect of replacement levels of corn for cassava meal on […]