The objective of this work was to evaluate the performance and carcass characteristics of cattle fed high concentrate diets containing 15, 21 or 27% of sugarcane bagasse in the dry matter. Twenty-four Nellore steers with 279 kg of shrunk body weight and 24 months of age, two per pen, were fed for 98 days. No significant effects were observed for average daily gain (mean =1.461 kg) and feed efficiency among the treatments. It was observed a linear effect between dry […]

The objective of this work was to determine the fractions and rates of degradation of the carbohydrates for sugar cane, with different cycles of production (early and intermediate), in three cut times (426, 487 and 549 days). The total carbohydrates (TC), non-fibrous carbohydrates (NFC), fractions potentially digestible (B2) and indigestible (C) of the neutral detergent fiber (NDF), corrected for ashes and protein (NDFcp), were obtained. The kinetic parameters of NFC and fraction B2 were obtained from the technique of in […]

The objective of this work was to evaluate the intake of neutral detergent fiber (NDF) by fedlot cattle, the principal factors that influencing this variable, and to correlate the NDF to total dry matter (DM) intake. The data published at the Brazilian Journal of Animal Science Society and Brazilian Journal of Animal Science among the years of 1991 and 2000, totaling 45 scientific works and 181 averages of treatments, were evaluated. The level of total digestible nutrients was negatively correlated […]

The objective of this work was to study DM, NDF, CP and IPND ruminal kinectics of irrigated Tanzaniagrass (Panicum maximum Jacq.). Simulated grazed samples were collected on three periods of the year (spring, summer and fall), under three post grazed stubbles intensities (low, medium and high). Three rumen cannulated animals were assigned to a 3 x 3 Latin square design to determine the in situ degradability until 96 hours of incubation. NDF, CP and IPND were determined by NIRS in […]

The aims of this research were to evaluate the effect of culling reasons on lifetime economic measures of dairy cows especially, Lifetime Net Income (LNI), Lifetime efficiency (LE), Income Over Feed Costs (IOFC) and Lifetime income per day of productive life (LIPL) using 19,565 lifetime records from Holstein cows. Culling rate was calculated dividing the number of culled animals, yearly, by the number of all animals present in each year. Data on reasons for disposal were used to calculate the […]

The objective of this experiment was to evaluate the effect of broiler strain and dietary lysine level on breast meat yield and quality. Two thousand two hundred and fifty day old straightrun chicks from commercial strains named A, B and C were reared in a factorial 3×3 arrangement (strain and dietary lysine level) with five replicates of 50 birds per pen. The broiler chikens were feed ad libitun with a corn and soybean diet withing the following lysine levels: 1.18, […]

The investigation was carried out to evaluate the effects of two stocking rates (CA280= 280 kg LW/ha and CA=360= 360 kg LW/ha) and two weaning ages of calves (DC = Conventional weaning at seven months of age and DP= Early weaning at three/four months of age) on reproductive performance of primiparous beef cows of two breed compositions (½ Nelore ½ Hereford and ¼ Nelore ¾ Hereford). Average daily weight gain (GMD) from calving to DC, during the mating period, and […]

The experiment run at the Agronomic Experimental Station of the Federal University of Rio Grande do Sul, located in the district of Eldorado do Sul, Brazil, to evaluate the performance of 40 crossbred Bos indicus x Bos taurus calves until two years old, early weaned (EW) with average age of 91 days and minimum liveweight of 70 kg, or weaned at conventional age (CW), averaging 170 days old and liveweight of 131.2 kg, supplemented (Su) or not (NSu) with energy-protein […]

Corn and soybean meal based diets with increasing levels of ground peas, sub-species hortense cultivar Alfetta (0, 20 and 40%), were formulated to evaluate the nutritional value of this ingredient with 18 castrated male pigs of commercial hybrids averaging 40 kg. The study also aimed to determine the apparent digestible and metabolizable energy and nitrogen retentions of peas. A total period of four weeks was used in which body weight gain, feed intake, feed conversion and amount of feces and […]

Three trials were carried out with 336 laying hens, aging 24 weeks and after second forced molt, caged in commercial conditions (550 cm2/bird) to evaluate the use of bulb garlic (5 kg/t), probiotic (300 g/t) and virginiamycin (20 g/t) as additives in laying hens diet before, during and after the induced forced molt stress (FM). A completely randomized design, with seven replicates of six brids each, was used. The treatments consisted of a control diet (CD) supplemented with bulb garlic […]