Modelos de análise de dados de provas de ganho em peso de bovinos da raça Nelore

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estimativas de parâmetros genéticos para escores de avaliação visual, peso e perímetro escrotal à desmama de bovinos da raça Canchim

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise de experimentos fatoriais de dois fatores com tratamentos adicionais

Experiments using factorial arrangement of treatments are rather common and useful in agricultural research. The main advantage is the possibility of testing many hypotheses, allowing broader conclusions over different factors, studied simultaneously. Factorial arrangements are used to compare levels of each factor (main effects), and also to verify if the differences among levels of a given factor are dependent on the levels of the other factors (interacions). In the analysis of data from factorial experiments, difficulty is increased when additional treatments are included. Inclusion of one or more additional treatments is a quite common practice, since such treatments are usually taken as reference or standard for evaluation and comparasion of the remaimng treatments, or aiming complementary information. This increase of difficulty is however low, compared to the advantages. As in literature there are few references about the statistical analysis of factorial experiments with additonal treatments, and given straightforward use in experimentation, the objective of this work was the presentation of approach for the use of factorial experiments with additonal treatments trough the analysis of some examples using the SAS® software, with the corresponding theoretical development, obtaining the system of normal equations, estimators of the parameters and variance of contrasts among two treatment means. It is suggested that additional treatments should be used with caution. The analysis of variance of such kind of experiment was presented using matrix notation.

Efeito da seleção para crescimento em diferentes idades sobre o consumo de energia em animais da raça Nelore

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Análise da curva de crescimento de bovinos da raça Nelore utilizando funções não-lineares em análises Bayesianas: Selma Forni. -

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Própolis ou monensina sódica como aditivo para cordeiros terminados em confinamento

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estimativas de heterose e capacidades de combinação em cebola para resistência a raiz rosada

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Avaliação genética multirracial para ganho de peso pré-desmama em bovinos de uma população composta

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Resposta aguda de sessões de treinamento com pesos em diferentes intensidades, na sustentabilidade das repetições e no volume total, em mulheres idosas treinadas

Introdução: A utilização de diferentes intensidades em sessões de exercícios com pesos, para os músculos extensores do cotovelo, tem proporcionado diferenças na sustentabilidade das repetições e no volume total. Entretanto, devido às alterações do desempenho neuromuscular inter-membros, tais evidências não podem ser extrapoladas para membros inferiores. Objetivo: Comparar a resposta aguda de sessões de exercício com pesos, realizadas com diferentes intensidades, na sustentabilidade das repetições e no volume total, em idosas treinadas. Materiais e Métodos: Participaram do estudo 16 idosas (68,3 +-6,0 anos) treinadas com pesos. Os dados foram coletados em cinco sessões, separadas por no mínimo 48 horas de descanso. A intensidade, em quilogramas, do teste de repetições máximas (15 RM) foi determinada nas duas primeiras visitas e confirmada na terceira. Nas quarta e quinta visitas, foram realizadas as sessões com as diferentes intensidades (em uma sessão - três séries até a fadiga muscular concêntrica, com a intensidade de 100% de 15 RM; na outra sessão - duas séries de 15 repetições e na terceira série até a fadiga muscular concêntrica, com a intensidade de 90% de 15 RM). Em ambas as sessões, o intervalo de recuperação utilizado entre as séries foi de dois minutos. Todas as participantes realizaram ambos os protocolos e um delineamento crossover balanceado foi utilizado para determinar a ordem das sessões. Resultados: O teste t de Student para amostras dependentes demonstrou que o volume total da sessão de teste com 90% de 15 RM foi significativamente superior (22,5%; P < 0,01) ao da sessão com 100% de 15 RM. A ANOVA indicou efeitos principais de condição, momento ...(Resumo completo, clicar acesso eletrônico abaixo)

Feed digestion of growing Saanen goats

Pós-graduação em Zootecnia - FCAV

Uso de variáveis relacionadas com a produção embrionária, em camundongos, como fatores preditivos

Mouse embryo production by superstimulation is a multifactorial process. To minimize the number of sacrificed animals and to maximize the results of the superstimulatory treatment, it should be possible to predict the risk of do not get embryos from such a treated animal. This work aimed to evaluate if the variables - hormone concentration and the timing of its administration, the copulatory plug presence and individual male used to mating – could be predictive factors on the mouse embryo production. Females were distributed in four groups (cross-over design) related to scheduled superstimulation treatment (1300h or 1700h) and eCG/hCG administered concentration (5 or 10IU). After the hCG treatment, females were put to mate. On the next morning it was verified the presence of a copulatory plug (D0.5). Embryo recovery was performed from D2.5 to D4.5 by flushing the oviducts and uterine horns. Total structures recovered (TSR) and the viable embryos (VE) were classified by its morphology. Viability rate (VR) was calculated with VE in relation to TSR (x100). Group comparison was analyzed with 5% of significance. There were no significant differences among groups, even when only main effects were analyzed (hormone concentration and timing of its administration). There was significant difference in VR from animals with or without plug and from the worst and best males used. It was concluded that neither the hormone concentration nor timing of its administration - or their association – was significant as predictive factors for the embryo production. However, the plug presence was related to higher VR.

Funcionalidade das proteínas EF-Tu e 14-3-3 na virulência de Paracoccidioides brasiliensis

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Aditivo alternativo, associado ou não ao antimicrobiano, na dieta de leitões recém-desmamados

Pós-graduação em Ciência e Tecnologia Animal - FEIS

Nanopartículas de Pd suportadas em compósitos óxido-carbono: influência das interações metal-suporte na oxidação de etanol em meio básico

Fuel cells powered directly with ethanol (Direct Ethanol Fuel Cell-DEFC) are very attractive for the possibility of using a renewable fuel in the generation of clean energy. However, it is still necessary to deepen the understanding of catalytic processes and their dependence on the catalytic properties. This work proposes to study the catalytic activity of ethanol oxidation in an alkaline medium of Pd nanoparticles supported in carbon oxide hybrids using various transition metal oxides (MoO3, TiO2, WO3 and ZrO2). The materials prepared were characterized by techniques such as X-ray diffraction, transmission electron microscopy (TEM) and X-ray dispersive spectroscopy (EDX) to verify the structure, the distribution of particles in the supports and the presence of Pd on particles oxide. Experiments of X-rays absorption spectroscopy were carried out using soft X-rays (SXS) to evaluate the changes in the electronic properties of the Pd particles caused by interactions with different oxides. Measurements of cyclic voltammetry and potential sweeps of adsorbed CO oxidation allowed evaluating general aspects of the catalysts' electrochemical behavior and determining the electrochemically active area thereof. The catalytic performances of ethanol oxidation in alkaline medium were evaluated by electrochemical techniques (potential scan and chronoamperometry), and showed an improvement in activity with the addition of oxides in material containing only carbon, which was most pronounced for the catalyst containing TiO2. This improvement was predominantly associated with the electronic effects caused by the interaction of Pd on the support, causing a vacancy in the 4d band of Pd which, in turn, produces variations in adsorption energies of the species...

Nanopartículas de Pd suportadas em compósitos óxido-carbono: influência das interações metal-suporte na oxidação de etanol em meio básico

Fuel cells powered directly with ethanol (Direct Ethanol Fuel Cell-DEFC) are very attractive for the possibility of using a renewable fuel in the generation of clean energy. However, it is still necessary to deepen the understanding of catalytic processes and their dependence on the catalytic properties. This work proposes to study the catalytic activity of ethanol oxidation in an alkaline medium of Pd nanoparticles supported in carbon oxide hybrids using various transition metal oxides (MoO3, TiO2, WO3 and ZrO2). The materials prepared were characterized by techniques such as X-ray diffraction, transmission electron microscopy (TEM) and X-ray dispersive spectroscopy (EDX) to verify the structure, the distribution of particles in the supports and the presence of Pd on particles oxide. Experiments of X-rays absorption spectroscopy were carried out using soft X-rays (SXS) to evaluate the changes in the electronic properties of the Pd particles caused by interactions with different oxides. Measurements of cyclic voltammetry and potential sweeps of adsorbed CO oxidation allowed evaluating general aspects of the catalysts' electrochemical behavior and determining the electrochemically active area thereof. The catalytic performances of ethanol oxidation in alkaline medium were evaluated by electrochemical techniques (potential scan and chronoamperometry), and showed an improvement in activity with the addition of oxides in material containing only carbon, which was most pronounced for the catalyst containing TiO2. This improvement was predominantly associated with the electronic effects caused by the interaction of Pd on the support, causing a vacancy in the 4d band of Pd which, in turn, produces variations in adsorption energies of the species...