A total of 35 males of Nile tilapia, averaging initial weight of 205 g, were maintained in five 250 L metabolism boxes to evaluate the lipid metabolism of Nile tilapias (Oreochromis niloticus). The experiment lasted 30 days, from October to November 2006. The treatments were: control diet plus olive oil; control diet plus corn oil; control diet plus soybean oil; control diet plus linseed oil; control diet plus fish oil. The experiment was in a completely randomized design with five […]

It was evaluated the effect of nitrogen fertilization (100 and 200 kg/ha of N as urea) on the components of forage production of an improved native pasture with 3.12 ha (paddocks – 0.52 ha). Control areas without application of N were used, using a complete block design with two replications. Paddocks were grazed by lambs in a continuous stocking and variable stocking rate to keep forage allowance of 16% LW. In spring of 2004, pasture was uniformly fertilized with 250 […]

The experiment was conducted to evaluate dry matter (DM), crude protein (CP), and neutral detergent fiber (NDF) ruminal degradation of elephantgrass silages wilted under the sun light for eight hours or with addition of 0, 7, 14, 21, and 28% of cocoa meal (CM) at the ensiling. Samples of each silage type were incubated in the rumen of three Holstein cows for 0, 6, 12, 24, 48, 72, 96, 120, and 144 hours. The CM inclusion reduced the degradation potential […]

The objectives were to evaluate the forage yield, the structural characteristics, the herbage intake, the grazing behavior and beef cattle performance in the palisadegrass cvs. Marandu and Xaraés pastures submitted to three grazing intensities. The experiment was carried out at Embrapa Gado de Corte. The experimental period was from October 2005 to June 2006. The area was of 8 ha, divided in 12 paddocks of 0.67 ha. Two cultivars of palisadegrass, Marandu and Xaraés, and three grazing intensities, 15, 30, […]

The aim of this study was to estimate the genetic diversity among accesses of P. urvillei of Departamento de Plantas Forrageiras e Agrometeorologia (DPFA) of the College of Agronomy – UFRGS and to evaluate their use in selection programs. Sixty four accesses from different cities of the Southern Region of Brazil (Rio Grande do Sul, Santa Catarina and Parana States) and from Argentine were analyzed by RAPD and SSR molecular markers. Ten primers of RAPD markers were used and resulted […]

The objectives of this trial were to quantify the water soluble carbohydrates (WSC) concentration present in sugarcane that nullifies ethanol production, and to evaluate the effects of WSC content on nutritive value and other fermentative characteristics of sugarcane silage. A completely randomized design was used with three treatments and four repetitions per treatment. Sugarcane was squeezed in order to remove juice. In the first treatment, juice was totally added back to sugarcane (100%). In the second treatment, only 50% of […]

The objective of this study was to estimate direct and maternal additive genetic, non-additive and heterozygotic effects for pre and post-weaning traits and to develop equations to predict growth performance in a multi-breed Aberdeen Angus (Angus)-Nellore herd. The analyses were performed by SAS® using two different models. The model 1 (M1) was used for the pre-weaning traits, weaning weight adjusted to 205 days of age (P205) and average daily gain from birth to weaning (GMDND), and included the fixed effects […]

This study aimed to evaluate the effectiveness and the economical advantage of using flunixin meglumine (FM) to block uterine secretion of prostaglandin in order to reduce embryonic losses in beef cattle females. Postpartum cows (E1) and heifers (E2) were submitted to estrus synchronization and inseminated at fixed time. Fourteen days after the insemination the animals were assigned to the FM treatment group (FMG, including 59 cows and 23 heifers) and to the control group (CG, including 56 cows and 20 […]

The aim of this work was evaluate the animal performance, the carcass characteristics and the weight of the organs of digestive system of pigs submitted to different periods of feed restriction. A total of 40 barrows, Landrace × Large White were distributed to randomized block design, to four feed restriction programs, five replications and two animal per experimental unit. Four restrict programs were evaluated: one control, with ad libitum feeding during the 86 days of experiment, and others three, with […]

The lysine levels for chickens in the growing phase (22 to 40 days of age) by using two different electrolytes balance were evaluated. Sixty-four hundred Cobb broiler male of 21 days old were allotted to a completely randomized design as a factorial arrangement of treatments, five lysine levels (1.062, 20, 40, and 60% above and 20% below of recommended levels) and two electrolytes balance (190 and 255 mEq/kg), with four replicates and 16 broilers for experimental unit. There was no […]