The trial aimed to evaluate the apparent strain digestibility coefficients (CDa) of dry matter (MS), gross energy (EB) and crude protein (PB) of soybean meal (FS), corn (MO), wheat (TG), wheat meal (FT), millet pearl (MT), triticale (TC), cassava meal (FM) and soybean oil (OS) of Nile tilapia fingerlings of Thai. One hundred sexual reverted animals were used, with a mean weight of 37.61 ± 4.98g, distributed in two alimentation 500L mansory tanks and feces collect in modified Guelph system […]

Aiming to evaluate different inclusion levels of cassava meal (0.00, 6.00, 12.00, 18.00 and 24.00%) in diets with 30.00% of digestible protein and 3,000 kcal/kg of digestible energy to Nile tilapia fingerlings, an experiment was carried out at the Aquaculture Laboratory /DBI/UEM. Two hundred reverted Thai strain Nile tilapia fingerlings were utilized, with an initial weight of 0.84 g and 35 days old, distributed in 25 250L tanks, in a completely randomized design with five treatments and five replications. Averages […]

The influence of the substitution of soybean meal protein (SM) by canola meal protein (CM) in Prochilodus lineatus fingerling diets was verified. One hundred and twenty specimens, averaging weight 1.88±0.82g and total length 5.40±0.99cm, was assigned to a completely randomized randomized design, with six treatments and four replicates, in a 50 L glass aquarium, with five fingerlings in each experimental unit. Isoprotein (26.00%), isocalcium (0.90%) and isophosphorus (0.70%) diets were formulated with increasing replacement levels of SM protein by CM […]

The effect of stocking density on the larviculture of Pimelodus maculatus post-larvae was evaluated. The experiment was conducted at the Sao Carlos hatchery (EPISCar), SC. Post-larvae were daily fed zooplankton at the rate of 300 organisms/post-larvae/day at the following densities: T1. 5 post-larvae/L; T2. 15 post-larvae/L; and T3. 30 post-larvae/L. Survival rates were evaluated on the third and fifth day of the experiment. After three days, density did not affect survival rates; however, on the fifth day survival rate was […]

Aiming to evaluate the effect of increasing levels of fat in the ration on performance, speed of food pass, consummates of ration and corporal fat, it were used 168 Nile tilapia fingerlings, reverted, with average weight of 1.24 ± 0,03g and average size of 4.10 ± 0.30 cm, allotted to 24 aquariums, of 50 L of useful volume, in a completely randomized design with six treatments and four replicates, where the aquarium with seven animals was considered experimental unit, for […]

The effect of isolated trees of baginha (Stryphnodendron guianense (Aubl.) Benth.) on some aspects of cultivated pasture ecosystems was studied in the Western Amazon of Brazil. Soil fertility, nutrients in the litter, soil water content, light transmission to sward, herbage availability, and chemical and morphological composition of the grasses (mixture of Brachiaria decumbens and B. brizantha cv. Marandu) were assessed under the canopies of baginha trees and in the adjacent open areas. The trees had positive effect on soil fertility, […]

This trial was conducted at National Beef Cattle Research Center of Brazilian Agricultural Research Corporation (Embrapa Beef Cattle), to evaluate the morphogenetic characteristics of leaves and tiller, green dry matter yield and growth index of Tanzaniagrass in two post-graze stubbles (high post-graze stubble (HPS) ¾

Traditional analytical methods of assessing forage nutritional value are time-consuming and expensive. The near infrared reflectance method appears as an alternative that does not utilize chemicals, is not destructive and is extremely fast. However, in order to be used in a routinely basis, calibration curves have to be developed from laboratory results and mathematical equations. The objective of this paper was to develop calibration curves for corn silage, using a total of 246 samples collected in different regions of Rio […]

It was studied five management systems of native pasture, under grazing, from Rio Grande do Sul State: with biennial burning for more than 100 years, without burning for 32 years with or without mowing, and pasture improvement for 7 and 24 years. The forage accumulation and the senescent material detached from the plant, were evaluated using grazing exclusion cage. The experimental design was a completely randomized with three replications. The systems without burning were more productive and among these the […]

This experiment was carried out in a greenhouse condition to study the effect of phosphorus, arbuscular mycorrhizal fungi and nitrogen on mineral accumulation in braquiaria MG-4 (Brachiaria brizantha cv. MG-4) above ground forage DM and peanut (Arachis pintoi cv. Amarillo) mixture, in soil of low fertility. The experimental design was a completely randomized in a 5x2x2 factorial arrangement, with five P rates (25, 50, 75, 100 and 200 mg/kg of soil), two inoculations (inoculated and no inoculated) and two levels […]