Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2018 ( 3 )

2017 ( 3 )

2016 ( 1 )

2015 ( 32 )

Custom range...

Search Results: 1 - 10 of 605 matches for " Ananda Portella;Comin "
All listed articles are free for downloading (OA Articles)
Page 1 /605
Display every page Item
Digestibility and behavior of dogs housed in kennels or metabolic cages
Sabchuk, Tabyta Tamara;Félix, Ananda Portella;Comin, Juliana Grigoletto;Alar?a, Laís Guimar?es;Oliveira, Simone Gisele de;Maiorka, Alex;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000100018
Abstract: the objective of the present study was to compare the apparent digestibility coefficients of a commercial dog food, fecal consistency and behavior of dogs housed in kennels and metabolic cages. six adult beagle dogs were distributed in cross-over experimental design, with six replicates per treatment. dogs were housed in two environments: metabolic cages and in masonry kennels with solarium. dogs were fed for a five-day adaptation period, and the five following days were used for total feces collection. dogs behavior was recorded during a 48-h period, with 10-min intervals. apparent digestibility coefficients were not different between treatments. however, dogs housed in metabolic cages produced lower weight and more consistent feces as compared with dogs housed in kennels. dogs spent most of the time sleeping in both housing systems; however, dogs housed in the metabolic cages slept more than those in kennels. stress-related behaviors (barking, whimpering, stereotypies, etc) were observed for no longer than 15 minutes per day, and were not different between dogs in kennels or in cages. there is no difference in food digestibility evaluated in dogs housed in metabolic cages or kennels; however, dogs kept in metabolic cages eliminate drier feces and spend more time inactive than those kept in kennels.
Níveis vitamínicos para frangos de corte
Félix, Ananda Portella;Maiorka, Alex;Sorbara, José Otávio Berti;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782008005000073
Abstract: vitamins are micronutrients that participe in many metabolic processes of the organism, being essential to animal health and performance. there has been little research conducted over the last years on estimating the best vitamin levels for broilers, having great variation on comercial levels. the objective of this study was to present the actual concepts of the evaluation of vitamin requirements for broiler and the levels recomendated by industry and research centers. the major levels recomendated by nrc (1994) were based on former studies, with controled conditions and considering minimal levels to avoid deficiency signs, not evaluating the best performance on the challenge conditions found in field. furthermore, modern strains presents greater growth rate and production, resulting in higher nutritional requirements to express their genetical potential. nowadays, besides zootecnical parameters, it had been evaluating other parameters to determine vitamin requirements, as imunity, well being and carcass characteristics. comercial vitamin levels used are generally superior than the suggested by nrc (1994), and the liposolubles levels may be higher than 25 times the recomendations and hydrosolubles five times higher. the use of higher vitamin levels in brolier diet results in greater productive performance and meat quality.
Características físico-químicas de derivados proteicos de soja em dietas extrusadas para c?es
Félix, Ananda Portella;Brito, Cleusa Bernardete Marcon de;Ferrarini, Hair;Rodriguez, Maria Inês Genovese;Oliveira, Simone Gisele de;Maiorka, Alex;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010001200021
Abstract: soy is a grain rich in protein and lipids, from which its obtained different protein products of high nutritional value. this study aimed to analyze the chemical composition of different soy-protein products, as well as the characteristics of the extruded produced. six diets were formulated, a reference and five with 30% soy product (defatted soy flour - dsf, micronized, soybean meal, crude grain or toasted grain), which were extruded. soy products and diets were submitted to chemical analyses and process quality. the dsf and soybean meal presented the highest crude protein content, while the toasted and crude soybeans and micronized soy presented the highest acid hydrolyses ether extract and crude energy content. the crude soybean presented the highest ureatic activity and trypsin inhibitor activity, even after the diet extrusion. the soy beans and micronized soy extruded presented the highest density and the lowest hardness, water absorption index and starch gelatinization degree. soy-protein products present high nutritional value, however they should be heated before extrusion to complete inhibition of trypsin inhibitor. besides, soy products with high fat content, such as soybean and micronized soybean, when added to 30% reduced the extruded quality.
Digestibility and fecal characteristics of dogs fed with Bacillus subtilis in diet
Félix, Ananda Portella;Netto, Marina Volanski Teixeira;Murakami, Fabiane Yukiko;Brito, Cleusa Bernardete Marcon de;Oliveira, Simone Gisele de;Maiorka, Alex;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010005000166
Abstract: considering the benefice demonstrated by the modulating action of probiotics on the host intestinal microbiota, this study aimed to evaluate diet digestibility and fecal characteristics of dogs fed with diets supplemented with bacillus subtilis (c-3102). twelve young beagle dogs were distributed in a completely randomized experimental design consisting of two treatments: diet with no addition or with the addition of 0.01% bacillus subtilis (c-3102). dogs passed through 25 days of adaptation to the diets, and five days of total feces collection. the following fecal characteristics were evaluated: ph, fecal score (1 - watery feces; 5: dry and hard feces), and ammonia content. diet mean digestibility was compared by the tukey test, and fecal characteristics by the tukey-kramer test. diet digestibility was not different between treatments, but dogs supplemented with the tested probiotic presented dryer feces (39.1% vs. 36.5% dry matter), higher fecal score (3.4 vs. 3.0) and lower fecal ammonia content (0.45% vs. 0.56%), than dogs fed with the control diet. the dietary supplementation with bacillus subtilis (c-3102) improves fecal texture and odor in dogs.
Diferentes graus de moagem em dietas para c?es
Hilcko, Karini Portela;Félix, Ananda Portella;Oliveira, Simone Gisele de;Bortolo, Marcelino;Maiorka, Alex;Brito, Cleusa Bernardete Marcon de;Alves, Pamela Fernandes;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009000800037
Abstract: the physical characteristics of the diet, including particle size, exert important role in animals diet usage. so, the current study aimed to evaluate the effect of diet granulometry on nutrients digestibility and metabolizability of energy in dogs. eight adult beagle dogs were distributed in a double latin square design (4 x 4), totaling eight replicates in time. the ingredients of diets were ground in sieves of: 0.8, 1.0, 1.2 and 1.5mm, and the diets particle size were expressed as geometric mean diameter (gmd): 468, 476, 499 and 588μm, respectively. each experimental period was composed by five days for diet adaptation and five days of total feces collection. the correlation and regression analyses showed a negative relationship between gmd and coefficient of apparent digestibility (cad) of crude protein (y=94.82-42.05x), acid ether extract (y=86.57-35.02x), nitrogen free-extract (y=102.48-48.42x) and metabolizable energy (y=3597.56-1697.00x). it was not observed effect of gmd on dry matter intake and dry matter cad. there was lower fecal score with increasing gmd of foods. therefore, the lowest particle size of food resulted in better use of nutrients and diet energy and production of drier feces by dogs.
Globalización y dependencia: los nuevos impasses del desarrollo brasile o
Alexandre COMIN
América Latina Hoy , 2009,
Abstract: RESUMEN: Empezando por un análisis del patrón de industrialización brasile o y las causas de su fracaso a partir de los 80 en un contexto de ideología neoliberal, el autor analiza los nuevos parámetros de la política industrial de los a os 90. A la luz del nuevo contexto de estabilización y de integración regional, se observan los diferentes impactos que esta estrategia tiene sobre la estructura productiva. ABSTRACT: Begining with an analysis of the brazilean industrialization pattern and the causes of its failure form the eighties in a context of neoliberal ideology, the author analyzes the new parameters of the industrial policies in the nineties. In this new context of stabilization and regional integration, it is observed the different impacts thar this strategy has over the productive structure.
Energy Structure of Optimal Positional Strategies in Mean Payoff Games
Carlo Comin
Computer Science , 2015,
Abstract: This work studies structural aspects concerning optimal positional strategies in Mean Payoff Games, it is a contribution to understanding the relationship between optimal positional strategies in MPGs and small energy-progress measures in reweighted energy games. In particular, it is observed an energy decomposition theorem which describes the whole space of all optimal positional strategies in terms of so-called extremal small energy-progress measures. This points out what we called the "energy structure" of the space of all optimal positional strategies in MPGs, as it allows for a disjoint-set decomposition (of that space) which is expressed in terms of small energy-progress measures in reweighted energy games.
(Extended Version) Algebraic Characterization of the Class of Languages recognized by Measure Only Quantum Automata
Carlo Comin
Computer Science , 2013,
Abstract: We study a model of one-way quantum automaton where only measurement operations are allowed ($\mon$). We give an algebraic characterization of $\lmo(\Sigma)$, showing that the syntactic monoids of the languages in $\lmo(\Sigma)$ are exactly the $J$-trivial literally idempotent syntactic monoids, where $J$ is the Green's relation determined by two-sided ideals. We also prove that $\lmo(\Sigma)$ coincides with the literal variety of literally idempotent piecewise testable regular languages. This allows us to prove the existence of a polynomial time algorithm for deciding whether a regular language belongs to $\lmo(\Sigma)$ and to discuss definability issues in terms of the existential first-order logic $\Sigma_1[<]$ and the linear temporal logic without the next operator LTLWN.
Total Electron Content and Anomalous Appearance of GPS Satellites as Pointers to Epicentre Identification of Major Japan Earthquake of 2011  [PDF]
Minakshi Devi, Ananda Kumar Barbara
Positioning (POS) , 2012, DOI: 10.4236/pos.2012.31002
Abstract: The paper presents an analysis of variations in Total Electron Content (TEC) observed through Global Positioning System (GPS) at Guwahati (26?10'N, 91?45'E), in relation to the Japan Earthquakes (EQs) of March 9 and 11, 2011. For this purpose, the azimuthal positions and trajectories of abnormally increased number of satellites at the epicentre location appearing into the Field Of View (FOV) of GPS antenna at Guwahati and consequent pseudo enhancement in TEC are taken as inputs. The paper discusses how the analysis results could provide warning alarms of two earthquakes possibly one on March 8 or 9 and the other on March 11 or 12, 2011 with epicenter positions around 135?E to 145?E and 35?N to 40?N, that coincides with location of Japan Earthquakes. A projected forecast on EQ magnitude of M > 8.5 is also made. The explanations to the observed modifications in TEC features and abnormal increase in number of satellites are purported to be the result of coupling between lithosphere and troposphere forced in by pre-earthquake processes that had spread the zone of activities to as far as Guwahati.
A Semi-automatic method for segmentation and 3D modeling of glioma tumors from brain MRI  [PDF]
S. Ananda Resmi, Tessamma Thomas
Journal of Biomedical Science and Engineering (JBiSE) , 2012, DOI: 10.4236/jbise.2012.57048
Abstract: This work presents an efficient method for volume rendering of glioma tumors from segmented 2D MRI Datasets with user interactive control, by replacing manual segmentation required in the state of art methods. The most common primary brain tumors are gliomas, evolving from the cerebral supportive cells. For clinical follow-up, the evaluation of the preoperative tumor volume is essential. Tumor portions were automatically segmented from 2D MR images using morphological filtering techniques. These segmented tumor slices were propagated and modeled with the software package. The 3D modeled tumor consists of gray level values of the original image with exact tumor boundary. Axial slices of FLAIR and T2 weighted images were used for extracting tumors. Volumetric assessment of tumor volume with manual segmentation of its outlines is a time-consuming process and is prone to error. These defects are overcome in this method. Authors verified the performance of our method on several sets of MRI scans. The 3D modeling was also done using segmented 2D slices with the help of medical software package called 3D DOCTOR for verification purposes. The results were validated with the ground truth models by the Radiologist.
Page 1 /605
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.