An experiment was conducted with day-old male Hubbard, broiler chicks, reared in electrically heated batteries, and raised in wire mesh floors and fed purified amino acid diets and water ad libitum for a 14 days period. The purified diets containing all essential amino acids, vitamins and minerals at adequate levels and was supplemented with 5, 10 and 15% of L-Glu and with 0, 5,000, 10,000 and 15,000 IU of vitamin D3. The experimental design was a factorial 3 x 4 […]

In an area adjacent to trials conducted by Braz et al. (2001) another area was fenced to evaluate the degradation of piles feces liberated by the cattle and the influence of nutrients liberated to the forage on the nutrients production and concentrations. Fifty piles feces were collected immediately after excretion by the animal and maintained in the field for periods of 7, 14, 28, 56 and 112 days of incubation. It was observed a continuous and high variation in the […]

energy values (aparent metabolizable energy – AME and true metabolizable energy – TME) of soybean meal samples (1, 2, 3, 4, and texturized) and processed full fat soybean samples (Jet Sploder, toasted and micronized) were determined by using the traditional method of excreta collection with growing chickens and the forced feeding method, by using adult cockerels. In the first assay, the experimental diets were fed to four replicates with ten birds in each experimental unit and the basal diet fed […]

A study was conducted to evaluate three cultivars of Panicum maximum Jacq. under rotational grazing for the nutritive value,where the estimates of crude protein, neutral detergent fiber, acid detergent fiber, lignin, cellulose, silica, and in vitro digestibility of the organic material were performed in samples of leaves and stems. Additional nitrogen was applied in cv. Tanzania at the end of the rainny season. Samples were taken in June, September, and October 1998 and in March 1999. Some differences among treatments […]

The objective of this work was to study the ammonia released, levels of moisture, glicydic compounds (reducing sugars) and nitrogenous fractions (N-total, N-soluble, N-nitrate) of broiler litter submitted to different stocking densities (10; 14; 18 and 22 broiler per m2), both sex, and three breeding periods (24, 38 and 42 days). The experiment was carried out in a random design and analysed as a 4x2x3 factorial. In general the sex did not affect the studied variables. The amounts of released […]

An experiment was conducted to evaluate the inclusion levels of integral mesquite pods meal (MPM) (0, 5, 10, 15, 20 and 25%) in diet on laying quail performance. Two hundred and sixteen layer quails with 160 days of age and live weight of 189 g were allotted to an experimental design completely randomized. The studied variables were obtained in three periods of 21 days. The 25% of MPM level reduced feed intake and egg mass when compared to control. Except […]

The experiment was conducted to evaluate the feedlot performance, from 210 to 408 days of age of calves weaned at 72 (T72) or 210 (T210) days. Thirty-six non castrated Braford (5/8 Hereford 3/8 Nellore) calves were used. The average weight at the beginning of the experiment was 209 (T72) and 192 kg (T210). The whole feedlot period was 168 days, divided in four periods of 42 days. The roughage:concentrate ratio was 60:40 for the first and second periods, 50:50 for […]

This work had the purpose to characterize the tillering and biomass accumulation dynamic, phenology and anatomic aspects. The experiment was conducted in Passo Fundo, Rio Grande do Sul, in which six plants were harvested every 15 days, between 21/10/99 to 21/04/00, in a completely randomized design. The times were accounted using units of growing degree-days (DD), calculated as the sum of the daily mean temperatures (threshold temperature = 0ºC). Transverse hand sections were used to observe the anatomic characteristics of […]

In order to select the model of the lactation curve that has the best adjustment for milk production records of Holstein cows in the Minas Gerais State, a total of 157,932 test day of 17,150 lactations from 305,506 test day of 56,422 lactations, from 1990 to 1996, provided by the milk recording service of the ACGHMG (Holstein Breed Association of Minas Gerais), were used. The data were adjusted for: region, management level, year -season of calving, COPI (parity and age […]

This study aimed to identify the botanical composition of the diet of cattle extensively raised on native grasslands in the Pantanal wetland through the fecal microhystological technique, on a characteristic area of the subregion of Nhecolândia, from October/97 to September/99, and to verify the variation as affected by month, season, year and physiological condition of cows. A set of 726 microhystological slides was prepared, each slide being an observational unit. Based on distribution of maximum occurrence values of each species/slide […]