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Azolla production as a protein source to poultry: a case study in family poultr...
Giehl, Carlo Juliantro; Chuquillanque, Darwin Aranda; Porto, Carmem Rejane Pacheco; Dias, Eduardo Antunes; Stumpf, Marcelo TempelThe present article addresses the activities involved in the construction of two tanks for the production of Azolla (Azolla sp.), an aquatic fern that can be used as poultry feed. The activities took place in Capão do Leão and São Lourenço do Sul, in the southern part of Rio Grande do Sul state. Two models of tanks were built, the one in Capão do Leão being outside the paddocks and the one in São Lourenço do Su...
Competitiveness levels in cattle herd farms
Marques, Pedro Rocha; Barcellos, Júlio Otávio Jardim; Dill, Matheus Dhein; Dias, Eduardo Antunes; Azevedo, Eduardo Vaz TorresO objetivo deste experimento é a identificação das demandas de melhorias para fazendas com diferentes níveis de competitividade no Oeste do RS. Entrevistaram-se 63 produtores grandes (área= +900 ha) por meio de um questionário semi-estruturado, dividido em quatro direcionadores: tecnologia (TEC), gestão (MAN), relações de mercado (MR) e ambiente institucional (IE). Utilizou-se o software SAS 2002, versão 9.0, p...
Reproductive success or failure in four breed groups of beef bulls
Menegassi, Sílvio Renato Oliveira; Barcellos, Júlio Otávio Jardim; Peripolli, Vanessa; Dias, Eduardo Antunes; Costa Junior, João Batista GonçalvesThe objective of this study was to determine the main causes of failure in bull breeding using a soundness evaluation in Rio Grande do Sul State/Brazil. We evaluated 19,836 bulls from 15 different breeds with ages ranging from two to eight years. The failures of bulls in each step were analyzed by logistic regression. The binary logistic regression was applied because the response variable had only two response...
Dynamics of cattle production in Brazil
Pimentel, Concepta Margaret McManus; Barcellos, Júlio Otávio Jardim; Formenton, Bruna Krummenauer; Hermuche, Potira MeirellesMovement of livestock production within a country or region has implications for genetics, adaptation, well-being, nutrition, and production logistics, particularly in continental-sized countries, such as Brazil. Cattle production in Brazil from 1977 to 2011 was spatialized, and the annual midpoint of production was calculated. Changes in the relative production and acceleration of production were calculated an...
Export market orientation from brazilian coffee
Brandão, Fernanda Scharnberg; Ceolin, Alessandra Carla; Gianezini, Miguelangelo; Ruviaro, Clandio Favarini; Dias, Eduardo AntunesThis paper aims to verify whether the Regional Orientation Index (ROI) can assist in decision making for export marketorientation for Brazilian coffee, to export the searching products from the major importers. The Decision Making Theory was adoptedand through the descriptive and quantitative method, the ROI is calculated in order to determine if Brazilian coffee exports are beingaddressed to the main importers...
Comparação de método para análise de metabólitos fecais de glicocorticóides em ...
Paz, Regina Celia Rodrigues da; Oliveira, Cláudio Alvarenga de; Nichi, Marcílio; Adania, Cristina Harumi; Dias, Eduardo AntunesThe objective of this study was to compare two different fecal metabolites extraction protocols32,33 and two commercial kits used to analyse fecal glucocorticoids (cortisol and corticosterone) in ocelots (Leopardus pardalis) submitted to hormonal treatment and video-laparoscopy procedure. Based on hormonal analyses, both extraction protocols exhibited similar performance. One commercial kit (ICN Biomedicals) ha...
Psittacine sex determination by radioimunoassay (RIA) of sex steroids using fec...
Dias, Eduardo Antunes; Oliveira, Cláudio Alvarenga dePara o presente estudo utilizaram-se amostras de excretas cloacais de 50 aves da família Psittacidae, previamente sexadas. Os andrógenos e estrógenos fecais foram extraídos com Tampão Fosfato Salino (PBS) e com uma solução PBS:Álcool Etílico (4:1) e a mensuração hormonal foi realizada em "kits" comerciais para radioimunoensaio no Laboratório de Dosagens Hormonais (LDH) do Departamento de Reprodução Animal (VRA)...