Crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and in vitro dry matter digestibility (IVDMD) contents were assessed in the leaf blade and stem + leaf sheath fractions of Tanzaniagrass (Panicum maximum Jacq. cv. Tanzania-1) managed at four sward heights (20, 40, 50 and 65 cm). The grazing method was the continuous stocking and variable stocking rate, and used Nelore steers with an average weight of 340 kg. The […]

Different economic viability of pasture production systems to heifers grazing elephantgrass pasture in North Fluminense region wa analyzed. The economical analysis of three systems of growing fedlot dairy heifers grazing elephantgrass pasture was performed. In order to study the hazard that each system can present due to the oscillations of prices in the market, Monte Carlo simulation was used. The systems studied were: without supplementation (PS1), offer of 0.5% of the alive weight of concentrate (PS2), and alternate pasture of […]

Forty eight commercial hybrids, barrows and females with 5.47 ± 0.21 kg, were allotted to a randomized block design with four treatments and six replications, to determine the best lysine level until 11.9 ± .35 kg and subsequent effects at 19.0 kg. The chemical composition of body fractions and the carcass and empty body accretion rates were determined. The studied digestible lysine levels in the nursery phase were 1.16 at 1.46%. No effects were observed on the chemical composition of […]

Silages of thirteen cultivars of sunflower (Helianthus annuus L.) were evaluated for chemical characteristics and in vitro dry matter digestibility (IVDMD). The silages were produced when the plants presented above 90% of ripe grains. The experimental procedure followed a entirely randomized design and the mean values were compared by SNK test (P<.05). The smallest content of dry matter, 19.8%, was obtained for the hybrid M737, and the highest were observed for Contiflor 7, with 31.2%, and Cargill 11, with 32.2%. […]

This work was conducted with the aim to evaluate the influence of weaning age at 100 (EW) or 180 (CW) days old on the growth of Braford heifers until approximately 18 months old. The calves of EW were daily supplemented during 63 days, at quantity of 1% of their live weight, with a comercial ration with 18% of crude protein and 74% of total digestible nutrients. Average daily gain from birth to 205 days (G205), from this one until 365 […]

Seven hundred and twenty and six hundred chicks, males and females, from 22 to 42 and from 43 to 53 days old, respectively, fed a basal diet (3100 and 3210 kcal ME/kg and 19.6 and 18.6% CP) deficient in sodium (0.017%), supplemented with NaCl, corresponding to the levels of .077, .137, .197, .257 and .317% of total sodium were used to determine the sodium requirements for broilers during the growing and final phases. A completely randomized design, in a 5×2 […]

The objective of this research was to study the variation of total solids in bulk tank milk samples in 32,590 herds of Paraná, Santa Catarina and São Paulo states, in Brazil. A total of 257,540 bulk tank samples collected between January 1999 and November 2001 were analyzed at the Central Laboratory of the Programa de Análise dos Rebanhos Leiteiros do Paraná (PARLPR) of the Holstein Association of the state of Paraná. Least Square Means Method procedures were used to study […]

The objective of this work was to estimate milk production through hand milking, using different doses (1; 2; 3; 4; and 5 IU) of oxytocin intramuscularly. Ten adult Hampshire Down ewes were assigned to a 5 x 5 repeated Latin square design, with five ewes and five days. Milking was performed after a 4-hour lamb separation period, and then corrected to 24 hours. On the last day of estimation, the ewes were milked at four different times, 12:30 p.m.; 06:30 […]

The present work aimed to determine the nitrogen and carbohydrates fractions and to estimate the respective digestion rates for corn silage, Tifton-85 bermudagrass hay, elephantgrass silage and soybean meal. The contents of dry matter (DM), crude protein (CP), ether extract (EE), ash, total carbohydrates (TC), neutral detergent fiber (NDF), NDF corrected for ash and protein (NDFcp), indigestible NDF (INDF), non-protein nitrogen compounds (NPN) and B1+B2, B3 and C nitrogen fractions, nonfiber carbohydrates and B2 and C carbohydrates fractions were determined. […]

The purpose of this work was to morphologically characterize and describe the vegetative cycle of eleven previously selected pigeon-pea lines submitted to self pollination, selection and multiplication, to obtain pure lines. All descriptions were accomplished through the use of internationally accepted descriptors for the species and it was concluded that all eleven lines can be easily distinguished by means of their morphological traits.