Fósforo na alimentação de pacus criados em tanques-rede

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

Um estudo sobre as operações unitárias de agitação, troca de calor em tanques e mistura de pós

De todas as operações, a agitação de fluidos, a troca de calor em tanques e a mistura de pós são, sem dúvida, as mais usuais, principalmente, na indústria de alimentos. Embora exigindo um estudo em separado, é comum estas operações unitárias estarem presentes, em instantes diferentes, no mesmo processo de fabricação. O propósito deste trabalho é enfatizar procedimentos de projeto para problemas práticos nas indústrias de processos envolvendo estas três operações. O modelo matemático proposto para a agitação de fluidos foi aplicado na substituição das tradicionais âncoras por impelidores de pás retas e inclinadas no processamento do suco concentrado de laranja. Observou-se que o tempo de permanência do suco no tanque de resfriamento caiu de quarenta para cinco minutos em decorrência da maior ação de mistura provocada pelas pás retas. O modelo proposto acompanha bem as exigências de potências requeridas pelo suco na medida em que é resfriado...(Resumo completo, clicar acesso eletrônico abaixo)

Sound absorption coefficient in situ: An alternative for estimating soil loss factors

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

The Influence of Dietary Lysine on Yellow Perch Female Reproductive Performance and the Quality of Eggs

The objectives of this study were to (1) evaluate if dietary lysine (Lys) has an effect on the free amino acid (FAA) pool of Yellow Perch Perca flavescens eggs, and (2) determine how dietary Lys influences the reproductive performance and eggs fertilization rate (embryo survival) of female Yellow Perch. Two-year-old Yellow Perch of initial size of approximately 75 g were randomly distributed into six 400-L tanks at 32 +/- 1 fish per tank. This experiment included two wheat gluten-based diets in triplicate Lys-deficient ([-] Lys) and Lys-supplemented ([+]Lys; 2.23% in dry feed) diets. Females from the reference group were fed a commercial diet. Females from reference, (+) Lys, and (-) Lys groups were stripped and their eggs divided into 0.4-1.2-g portions and mixed with sperm (21.4 +/- 4.3 mu L) from either reference, (+) Lys, or (-) Lys males. The mean weight of Yellow Perch females and mean total weight of ovulated eggs were the greatest in the reference group compared with both (+) Lys and (-) Lys groups. There were no differences in the ratio of weight of eggs to female body weight as well as egg size among groups. There was no difference among treatments in the concentration of free amino acids except glutamic and aspartic acids in Yellow Perch eggs. There was significant effect of female dietary treatments on the egg fertilization rate averaged across all males. The higher fertilization rate was observed in the reference and (+) Lys groups compared with the (-) Lys group. The effect of female dietary treatment on the egg survival was also dependent on the dietary treatment of males.

Suplementação de vitamina A em dietas para Kinguios (Carassius auratus)

Vitamin A is important to the proper development and functioning of the body, appearing in several metabolic functions. This experiment was conducted with aim evaluate to the vitamin A supplementation in diets for Goldfish Carassius auratus. The experimental was completely randomized with six treatments (0, 2.000, 4.000, 8.000, 16.000 and 32.000 IU of vitamin A kg(-1) diet) with four repetitions into 24 experimental cages, with capacity for 150 liters useful volume, made of mesh shading, installed inside a masonry circular tank with a capacity of 25 m(3) of water. 192 fish with an average initial weight of 6.66 +/- 0.57 g and initial length of 7.30 +/- 0.33 cm, feed at 8h, 11h, 14h and 17h at satiety were used. Evaluated the effects on productive performance and intensity of yellow-red coloring of the skin of the fish were. The Linear Response Plateau analysis of weight gain and length total, feed conversion and daily growth rate versus vitamin A requirement estimate showed 2,624, 2,385 and 2,358, 4,381 and 2,866 IU of vitamin A per kg diet, respectively. The data indicated that this vitamin has little or no influence on the intensity of the skin color of the Goldfish.

Utilização de água pluvial para fins não potáveis: análise do atendimento da demanda pelo método de eficiências para dimensionamento de reservatório para diferentes regimes pluviométricos brasileiros

Brazil has about 12 % of a life´s essential resource: the superficial fresh water of the planet. However, today it is possible to observe the bad management of this resource, generating serious consequences on the quality that results in the loss of the use´s availability. In this scenario, the catchment of rainwater for undrinkable use is an alternative that has been broadly studied for the scientific community. When planning a system of rainwater catchment, the sizing of the required volume of the tank that will keep the water has a fundamental importance for the project, seeing that the supersizing of the tank can bring high costs and the undersizing can bring shortage in the water supply. This paper used a methodology based on two concepts: the harvesting efficiencies and the attending efficiencies of the system. This method takes as principle that exist a perfect demand that minimize the repayment time, condition that happened when the efficiencies are equal. Brazilian’s cities with different weathers and different rainfalls where chosen to simulate the attending for different demands for a typical residence. The data where parameterized according to the roof area and the number of residents, that way is possible that a future conference can be easily done and it also ensure results closer to the reality. The results showed that cities with a lower period of drought, even those with high level of rainfall on the raining mouths, have lower potential of water supply. The cities where the rainfall is more constant and also more high, even small roofs areas and small tank´s volumes – about half of the size compare to the cities with less propitious conditions – can generate high levels of water saving. With an eye to promote the environmental sustainability, the investment on projects for the catchment of rainwater is a good alternative

Percepção de mulheres sobre consulta de enfermagem, exame de papanicolaou e vulvovaginite

The nursing consult (a job exclusive to a nurse), is a great instrument to gynecology, seeing as nurses are of fundamental importance in the prevention of uterine cancer, mostly by the use of the Papanicolau test, the most efficient method in the early detection and prevention of this kind of cancer. In addition to that, this consult includes a breast exam and possibly a vulvovaginitis exam, so that necessary forwardings and exam applications can be done. That being said, the work, in a qualitative analysis has been done in the “Healthcare center and school” in the city of Botucatu – SP, intending to measure the perception of the women in the population, of the Papanicoulau Test, the nursing consults, and their knowledge about vulvovaginitis. Twenty women were interviewed (using semi-structured interviews), and given forms after the nursing consult. The interviews were analysed using Bardin’s content analysis technique. The results show that the women’ reactions to the procedures were positive. Even Though there’s a culture of submission to medicine, and the Papanicolau test is seen by them as a necessary and important (even if unconfortable) procedure in the early prevention and detection of uterine cancer and other diseases, there was little to no knowledge about the signs, symptoms, and transmission methods for those different diseases. It is up to the nurse to facilitate these women’ access to that information, regarding not only the prevention of diseases, but also, and especially, the nursing consult’s relevance on theuterine cancer prevention program

Simulação de contaminação de sedimentos e águas subterrâneas por gasolina e álcool: um estudo de monitoramento de variações das propriedades físico-químicas

Geophysics studies in areas impacted by petroleum derivatives describe abnormalities of both low and high electrical resistivity (the opposite of electrical conductivity), confirmed as contaminant phase by chemical analysis: this contradiction can be explained by degrading processes that naturally occur and create sub products that can change the environment conductivity. Monitoring the variation of the parameters mentioned serves as a comparative basis to the variation in geoelectrical parameters, which identified the correlation between the same contaminant parameters and the difference between their behavior studied apart, as well as its relations with the biodegradation process. The results are applied to the fuel distribution and storage sectors, leading to the diagnosis and monitoring of possible groundwater contamination scenarios, and the knowledge of the area exposure time to the contaminant, besides the better remediation alternative and impacts control. Among some conclusions, the most significant are the decrease in conductivity over time, so as the increase in Eh value in the gasoline contaminated tank, as well as the decrease in the pH value in the second tank with ethanol, which can be attributed to its degradation. Comparing the variations in both tanks, it is evident that Eh, pH and electrical conductivity do not behave temporally in a similar way, although some correlations between Eh and pH can be related.

Condições higiênico-sanitárias e de manejo de rebanhos leiteiros correlacionados à qualidade do leite cru refrigerado

Pós-graduação em Medicina Veterinária - FCAV

Dose-resposta da imersão em água fria na recuperação do sistema nervoso autônomo pós-exercício

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeitos da diversidade funcional de detritos sobre a estrutura de comunidades e o funcionamento de ecossistemas de fitotelmatas

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

Mananoligossacarídeo na alimentação de tilápia-do-Nilo (Oreochromis niloticus): avaliação de indicadores imunológicos, hematológicos, bioquímicos e de desempenho produtivo. Resposta ao desafio com Lactococcus garvieae

Pós-graduação em Microbiologia Agropecuária - FCAV

Evolução da microbiota contaminante em linha de processamento de queijos Minas frescal e ricota

Fresh cheeses such as Minas frescal and ricotta are excellent means for undesirable microorganisms to thrive, damaging quality and wholesomeness of these products. In this context, this study aimed at evaluating the contaminating microorganisms in the processing line of fresh cheese, namely Minas frescal and ricotta, of a dairy plant nestled in the city of São José do Rio Preto-SP. The analyses were carried out with the following steps: water, pasteurized milk, curd, mass, whey, palmar surface and coagulation tank, and cheeses with zero and five days of shelf life. Such steps were monitored by determining the MLN of total coliforms and thermotolerants; counting of coagulase-positive Staphylococcus and mesophilic aerobic bacteria; search of Escherichia coli, Salmonella spp. and Listeria monocytogenes. Twelve samples were evaluated in each step. Among the water samples, three are provided with higher values than the ones recommended in terms of mesophilic aerobic bacteria. Three milk samples did not comply with thermotolerant coliforms. The mass samples, curd and whey showed a decrease in the counting for all microorganisms. Both palm surface and coagulation tank showed low counting for all bioindicators. All milk samples showed compliance regarding phosphatase/peroxidase.

Avaliação da deposição e da agitação de calda em reservatórios de pulverizadores agrícolas utilizando uma análise numérica (CFD) e experimental

Pós-graduação em Engenharia Mecânica - FEB

Tecnologias de captação e aproveitamento de água de chuva para residências uni familiares

Water scarcity is becoming an increasing problem and more evident worldwide, rainwater utilization is characterized for being one of the simplest and cheapest solutions to preserve drinking water and is a known alternative technology and used to promote sustainability in buildings and reducing pressure on surface waters, it would also reduce runoff and can minimize flooding. The rainwater, while not potable may be used in potable water usage activities, and may thus saving 30 to 40% of potable water. In this work one can see the importance of the capture and use of rainwater (CAAC), bringing economy, to reduce consumption of potable water, reducing the problem of water shortage, and which methods and materials needed to cause its implementation. The work also promoted the characterization of rainwater in the city of Guaratinguetá (SP) and studied its potential use in public housing, calculating the volume needed for implementation of the tank and the cost to implement all rainwater utilization system, but because it is a region with a median rainfall index and the popular houses present an area of small water capitation, the result was not satisfactory. The cost for implementation was high and the financial return was well above average. The government should encourage and support more CAAC, as not thinking about the financial side is advisable to be widespread throughout the country, the benefits it can bring