|
|
|
| Registros recuperados: 43 | |
|
| |
|
|
| Campos,Alessandro T.; Veloso,Alessandro V.; Silva,Enilson B.; Yanagi Júnior,Tadayuki; Mattioli,Matheus C.. |
| The goal of this study was to evaluate the nitrogen fertilization as deep litter for pigs in order to produce biomass and accumulate nutrients by the corn. A deep litter made of rice husk as organic compound, from a commercial pig farm during finishing phase, was used. After three consecutive batches of pigs, the deep litter was subjected to a maturation period of 50 days, and samples of this material were taken for analysis of agronomic value. The experimental design was completely randomized with five replicates. The treatments consisted of doses of 0, 75, 150 and 300mg dm-3 of N of deep litter, as well as an additional treatment with ammonium sulfate, with a dosage of 150mg dm-3 of N. After 45 days, corn plants were harvested in order to evaluate the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pig farming; Pig facilities; Alternative management; Waste treatment; Organic fertilizer; Zea mays. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600018 |
| |
|
|
| Silva,Gleice C. de A. e; Yanagi Júnior,Tadayuki; Silva,Eberson; Braga Júnior,Roberto A.; Campos,Alessandro T.. |
| A recuperação da topografia de ovos por meio de análise de imagens digitais permite, de forma não destrutiva, a estimativa das massas da gema, da clara, da casca e totais, que são produtos amplamente utilizados na esfera industrial. O presente trabalho buscou desenvolver uma metodologia para a recuperação da forma tridimensional de ovos por meio de análise de imagens, em especial usando a técnica de moiré. Foram utilizados ovos de diferentes tamanhos, classificados em: XL (mais de 73 g), L (63 a 73 g), M (53 a 63 g) e S (até 53 g). Em cada teste realizado em laboratório, um ovo, aleatoriamente selecionado, foi iluminado com a projeção de grades, e as imagens foram capturadas e processadas para a obtenção da forma tridimensional do objeto pela técnica de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Análise de imagens; Ovo; Forma tridimensional. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000200001 |
| |
|
|
| Pereira,Priscilla A.; Yanagi Junior,Tadayuki; Silva,Joaquim P. da; Lima,Renato R. de; Campos,Alessandro T.; Abreu,Lucas H. P. |
| The spatial distribution of illuminance and the electric consumption of artificial lighting system is one of the main problems related to broiler production. Therefore, the aim of this study was to evaluate the spatial distribution of luminance level and energy efficiency of different lighting systems for broiler houses. Six types of lamps were tested in two different configurations to find the minimum illuminance of 20 and 5 lux. The tested lamps were incandescent (IL) 100 W, compact fluorescent (CFL) 34 W, mixed (ML) 160 W, sodium vapor (SVL) 70 W, T8 fluorescent tube (T8 FTL) 40 W and T5 fluorescent tube (T5 FTL) 28 W. The first four were evaluated with and without reflective light fixture and the latter two without light fixture. It was observed that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artificial lighting; Spatial variability; Energy efficiency; Aviculture. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600002 |
| |
|
|
| Campos,Alessandro T.; Daga,Jacir; Rodrigues,Emanuel E.; Franzener,Gilmar; Suguiy,Mary M. T.; Syperreck,Vera L. G.. |
| Embora o uso de lagoas de tratamento seja uma tecnologia amplamente conhecida e utilizada para resíduos orgânicos, no caso específico dos resíduos líquidos da industrialização da mandioca, as experiências são reduzidas. Assim, o objetivo deste trabalho foi de avaliar a eficiência na redução da carga poluidora de lagoas de tratamento de resíduos líquidos de fecularia. Para tanto, foram coletadas amostras na entrada do sistema e em cada uma das sete lagoas da Fecularia Horizonte, em Marechal Cândido Rondon - PR, no período de maio a setembro de 2004. Os seguintes parâmetros foram avaliados: Demanda Bioquímica de Oxigênio (DBO), Demanda Química de Oxigênio (DQO), Sólidos Totais (ST), Sólidos Fixos (SF), Sólidos Voláteis (SV), N-NH4+, Condutividade Elétrica... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manipueira; Efluente; Mandioca. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162006000100026 |
| |
|
|
| Abreu,Lucas H. P.; Yanagi Junior,Tadayuki; Campos,Alessandro T.; Lourençoni,Dian; Bahuti,Marcelo. |
| ABSTRACT Broiler chickens submitted to different intensities and durations of thermal stress are subject to variation in cloacal temperature and, consequently, to a decrease in performance. Given the complexity of these interactions, artificial intelligence is a useful methodology for decision-making. Thus, this study aimed to assess and predict, by means of a fuzzy model, the cloacal temperature of broiler chickens submitted to thermal stress in the second week of life, with varying durations and intensities, in climatized wind tunnels. Mamdani's inference and defuzzification methods by means of the center of gravity were used. One hundred and twenty rules were elaborated. The developed fuzzy model was used to predict the cloacal temperature of broiler... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physiological response; Thermal environment; Mathematical modeling; Fuzzy logic. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000100018 |
| |
|
|
| Abreu,Lucas H. P.; Yanagi Junior,Tadayuki; Campos,Alessandro T.; Bahuti,Marcelo; Fassani,Édison J.. |
| ABSTRACT: The cloacal and surface temperatures are important physiological parameters to quantify the thermal comfort of animals, its variations may occur as a function of thermal variables. In this context, the goal of the present study was to evaluate the cloacal (tclo) and surface (tsur) temperatures of Cobb 500® broilers, in the second week of life, subjected to different air dry-bulb temperature (24, 27, 30 and 33 °C) and stress durations (1, 2, 3 and 4 days). The experiment was carried out in four climate-controlled wind tunnels. Air relative humidity and air velocity were set at 60% and 0.2 m s-1, respectively. The tclo and tsur were measured daily through digital thermometer and thermographic camera, respectively. Analysis of variance and Scott... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal environment; Aviculture; Thermal comfort; Thermographic image; Physiologic parameters. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000500877 |
| |
|
|
| Fia,Ronaldo; Boas,Regina B. Vilas; Campos,Alessandro T.; Fia,Fátima R. L.; Souza,Edson G. De. |
| This work aimed to study the agronomic performance and capacity of nutrient removal by bermudagrass (Cynodon spp.) and cattail (Typha sp.) when grown in constructed wetlands systems (CWSs) of vertical and horizontal flow, respectively, used in the post-treatment of swine breeding wastewater (ARS). The average yield of dry matter (DM) of bermudagrass in sections of 60-day interval ranged from 14 to 43 t ha-1, while the cultivated cattail produced in a single cut after 200 days of cultivation between 45 and 67 t ha-1 of DM. Bermudagrass extracted up to 17.65 kg ha-1 d-1 of nitrogen, 1.76 kg ha-1 d-1 of phosphorus, 6.67 g ha-1 d-1 of copper and 54.75 g ha-1 d-1 of zinc. Cattail extracted up to 5.10 kg ha-1 d-1 of nitrogen, 1.07 kg ha-1 d-1 of phosphorus, 1.41... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macronutrients; Micronutrients; Effluent treatment. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000100013 |
| |
|
|
| Castro,Jaqueline de O.; Ferreira,Rony A.; Campos,Alessandro T.; Yanagi Junior,Tadayuki; Tadeu,Hugo C.. |
| Este trabalho teve o objetivo de avaliar o ambiente térmico e o ruído em celas de maternidade para suínos com divisórias de alvenaria ou com rochas de ardósia. Para as medidas das variáveis de conforto térmico e de ruídos, utilizaram-se de termômetros e decibelímetro. No interior das celas e para a análise estatística, foram usados doze matrizes e cento e trinta e nove leitões, distribuídos em delineamento em blocos casualizados, em esquema de parcelas subdivididas. Os resultados mostraram que, no período da manhã, em ambos os tratamentos, as condições de conforto térmico foram mais adequadas para as matrizes, enquanto no período da tarde, mais adequadas para os leitões; com relação ao ruído, este foi menor nas celas de alvenaria. De forma geral, o... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ambiência; Ruído; Divisórias; Maternidade de suínos. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000100005 |
| |
|
|
| Veloso,Alessandro V.; Campos,Alessandro T.; Paula,Vanderson R. de; Dourado,David C.; Yanagi Júnior,Tadayuki; Silva,Enilson B.. |
| The aim of this work was to evaluate the energy flows of a commercial production system of swine deep bed in its finishing phase, located in Juiz de Fora, in the State of Minas Gerais, Brazil. Thus, an energy efficiency study was carried out by monitoring a lot of animals, during a 94-day period. The energy rate of each compound involved in the production process was quantified and the matrixes of energy consumption were determined in the form of animal feeding, electrical energy, piglets, material used as deep bed, human labor, equipment, swine buildings, production of alive swine for slaughter, organic fertilizer production (swine deep bed or swine deep litter). From the direct input energy, 80.57% correspond to animal feeding, 11.90% to pigs for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy input and output; Swine buildings; Alternative management; Sustainability of biosystems. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600008 |
| |
|
| |
|
|
| Lourençoni,Dian; Yanagi Junior,Tadayuki; Yanagi,Silvia de N. M.; Abreu,Paulo G. de; Campos,Alessandro T.. |
| ABSTRACT Broiler chickens are homoeothermic animals, i.e., animals capable of maintaining their body temperature within quite narrow limits; therefore, climate change poses a great challenge to poultry. With this in mind, this research aims to evaluate the performance of broilers submitted to different commercial production systems and exposed to different future scenarios, taking into account the climate change trends. To achieve this objective, we developed and validated a fuzzy model able to predict the performance of a broiler as a function of enthalpy along its life stages. This model was developed and validated in part I of this article based on experimental data collected for one year in three aviaries: conventional, negative pressure, and dark... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler industry; Artificial intelligence; Climate change; Fuzzy system. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000100011 |
| |
|
|
| Amaral,Pedro I. S.; Campos,Alessandro T.; Esteves Junior,Roberto da C.; Esteves,Gabriella F.; Yanagi Junior,Tadayuki; Leite,Maria E. C. R.. |
| ABSTRACT The objective of this study was to characterize the thermal environment and evaluate the behavior of finishing pigs housed in deep bedding and conventional systems. The work was carried out in the Department of Animal Science of the Federal Institute of Education, Science and Technology of Southeast Minas Gerais, Rio Pomba campus. Three pens were used in an installation for breeding pigs in their finishing phase. Two pens contained deep bedding, with wood shavings and rice husks. The remaining pen was a conventional system. The behavior of the piglets was observed from 8 a.m. to 5:30 p.m., noting the behaviors with the use of an ethogram, while data relating to the thermal environment in the stalls were automatically collected using data loggers.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal welfare; Animal behavior; Swine breeding; Breeding systems. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000100025 |
| |
|
|
| Bahuti,Marcelo; Abreu,Lucas H. P.; Yanagi Junior,Tadayuki; Lima,Renato R. de; Campos,Alessandro T.. |
| ABSTRACT This study aimed to compare fuzzy systems with different configurations to predict the surface temperature (ts) of broiler chickens subjected to different intensities and durations of thermal challenges in the second week of life. Data on the ts of broiler chickens aged 8 to 11 days were acquired by infrared thermography and subjected to combinations of four dry-bulb temperatures (tdb) (24, 27, 30, and 33 °C) and four durations of thermal challenges (DTC) (1, 2, 3, or 4 days). The input variables of the fuzzy systems were tdb and DTC, and the output variable was ts. The Mamdani inference method involving five defuzzification methods [center of gravity (centroid), bisector of the area (bisector), largest of maximum (lom), middle of maximum (mom),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pertinence functions; Fuzzy logic; Defuzzification methods; Fuzzy inference methods; Chicks; Infrared thermography. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000600813 |
| |
|
|
| Schiassi,Leonardo; Yanagi Junior,Tadayuki; Ferraz,Patrícia F. P.; Campos,Alessandro T.; Silva,Guilherme R. e; Abreu,Lucas H. P.. |
| É um desafio manter o ambiente térmico, e como as aves alteram seu comportamento em resposta a este ambiente, entender o comportamento dos animais ajuda neste controle. Neste contexto, objetivou-se, com o presente trabalho, avaliar o comportamento de frangos de corte, durante as duas primeiras semanas de vida, submetidos a diversas variações de temperatura do ar em câmaras climáticas. Os animais foram filmados por câmeras de vídeo, possibilitando o monitoramento das aves no estudo dos comportamentos característicos de agrupamento, presença no bebedouro, presença no comedouro e presença em áreas intermediárias. Os resultados mostraram que, em condições de estresse térmico por frio, as aves apresentaram tendência de permanecer maior parte do tempo agrupadas,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ambiência animal; Bioclimatologia; Conforto térmico; Avicultura. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000300390 |
| |
|
|
| Campos,Alessandro T.; Saglietti,José R. C.; Campos,Aloísio T.; Bueno,Osmar C.. |
| O objetivo do trabalho foi caracterizar o consumo de energia na implantação, condução, fenação e armazenamento, assim como a eficiência energética do Cynodon dactylon (L.) Pers, em sistema intensivo de produção de leite, na região de Coronel Pacheco - MG, sendo utilizados dados coletados pela Embrapa Gado de Leite, em média de sete anos. Para o levantamento dos componentes da matriz, foram utilizados coeficientes energéticos preconizados por autores especializados. A energia direta, relativa aos insumos, teve maior participação que a indireta, sendo os percentuais encontrados de 94,69 e 5,31, respectivamente. O principal consumidor de energia indireta foi o trator, por acionar todos os equipamentos tratorizados, seguido do equipamento de irrigação. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estruturas e equipamentos; Eficiência energética; Sustentabilidade da agricultura. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162005000200008 |
| |
|
|
| Ferraz,Patricia F. P.; Yanagi Junior,Tadayuki; Alvarenga,Talita A. C.; Reis,Gregory M.; Campos,Alessandro T.. |
| In the first week of a chick life, broilers are very sensitive to different conditions outside their thermoneutral zone. Thus, the goal of this study was to evaluate the behaviors and productive responses of broilers subjected to conditions of thermal comfort or challenge at different intensities (27, 30, 33 and 36ºC) and durations (1, 2, 3 and 4 days starting on the second day of life). In the experiment, ten minutes of images from each hour of each treatment were analyzed to evaluate the key behaviors of the birds. Similar behavior at different dry-bulb air temperatures were identified by using Ward's method of cluster analysis. These behaviors were grouped by dendograms in which the similarity of these data was qualified. Feed intake, water intake and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Grouping of data; Dendogram; Broiler; Productive responses. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600002 |
| |
|
|
| Amaro,André L. N.; Yanagi Junior,Tadayuki; Yanagi,Sílvia de N. M.; Ferraz,Gabriel A. E S.; Campos,Alessandro T.. |
| Abstract The aim of the present research was to propose a bioclimatic mapping to classify the thermal comfort and discomfort of rural workers within the state of Minas Gerais, considering historical and future scenarios. Monthly historical series (1976-2014) of minimum, mean and maximum temperature-humidity index (THI), determined through the values of air temperature (minimum, mean and maximum) and relative humidity from 48 weather stations located in the state of Minas Gerais were used to analyze the trends through Mann-Kendall and linear regression assays. The bioclimatic mapping of human comfort, obtained via geostatistical analysis, was developed as a function of the minimum, medium and maximum THI for the historical period (1976-2014) and future... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Human; Biometeorology; Human thermal comfort; THI; Time series. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000200173 |
| |
|
|
| Daga,Jacir; Campos,Alessandro T.; Feiden,Armin; Klosowski,Elcio S.; Câmara,Roberto J.. |
| Os dejetos de suínos são resíduos altamente poluidores, que prejudicam o meio ambiente, em especial a qualidade da água e o desenvolvimento de peixes e outros organismos aquáticos. Com isso, o objetivo deste trabalho foi verificar o perfil da suinocultura, a análise da adequação das instalações, os sistemas de manejo dos dejetos, bem como a adequação à legislação ambiental das propriedades agrícolas localizadas na microbacia do Córrego Ajuricaba, selecionada e localizada na bacia hidrográfica do Rio São Francisco Verdadeiro, na região Oeste do Paraná. Os resultados apresentados neste trabalho referem-se a dez propriedades das 110 analisadas. O perfil da suinocultura é de 80% dos suinocultores com sistema de criação em terminação e 20% em ciclo completo;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Resíduos; Sustentabilidade; Construções para suínos. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162007000400001 |
| |
|
|
| Lourençoni,Dian; Abreu,Paulo G. de; Yanagi Junior,Tadayuki; Campos,Alessandro T.; Yanagi,Silvia de N. M.. |
| ABSTRACT The selection of the type of fuzzy systems pertinence curve allows a better representation of the mathematical model and a smaller simulation error. We aimed to study the effect of pertinence curves in fuzzy modeling of broiler performance, created in different production systems. For the development and testing of fuzzy models, three commercial aviaries (conventional, tunnel with negative pressure, and dark house) were evaluated over one year, totaling six lots per system. For the development of the model, the input variables were enthalpy in each rearing phase (initial: phases 1, 2, and 3; growth: phase 4; and final: phase 5) and the output variables were feed intake (FE), weight gain (GP), feed conversion (FE), and the productive efficiency... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry farming; Production performance; Artificial intelligence; Fuzzy logic. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000300265 |
| |
| Registros recuperados: 43 | |
|
|
|
