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Registros recuperados: 21 | |
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Santos,Viviane Maria Oliveira dos; Caldara,Fabiana Ribeiro; Seno,Leonardo de Oliveira; Feijó,Gelson Luis Dias; Paz,Ibiara Correia de Lima Almeida; Garcia,Rodrigo Garófallo; Nääs,Irenilza de Alencar; Altemio,Ângela Dulce Cavenaghi. |
The objective of this work was to evaluate the effects of alkaline solution marinades on the characteristics of pork subjected to post-mortem pH decrease in pig muscle. The pH of carcasses was measured in a commercial slaughterhouse (n = 526), 45 min after slaughtering (pH45) and, then, the carcasses were divided into the groups with pH45<5.7 or pH45>5.7. Ten samples of the longissimus dorsi muscles of each group were collected and distributed in an entirely randomized design, in a 2x4 factorial arrangement, with two conditions (pH45<5.7 or pH45>5.7), and four marinade solutions: TC, no marinade; TM1, sodium bicarbonate and sodium chloride; TM2, sodium tripolyphosphate and sodium chloride; TM3, sodium bicarbonate, sodium... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sus scrofa; Meat color; PSE meat; Sodium bicarbonate; Sodium chloride; Sodium tripolyphosphate. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012001100013 |
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Moura,Rafael de; Caldara,Fabiana Ribeiro; Foppa,Luciana; Machado,Simone Pereira; Nääs,Irenilza de Alencar; Garcia,Rodrigo Garófallo; Gonçalves,Liliane Maria Piano. |
ABSTRACT This study aimed to assess the prevalence and influence of urinary tract infection on the reproductive performance of sows. The animals underwent urine tests using reagent strips and diagnosed as positive or negative. They were then divided into two groups of 30 positive and 30 negative sows for urinary tract infection. Each sow was considered an experimental unit and was followed from labor to weaning. The animals were assessed for their reproductive performance (labor duration, number of live births, mummified piglets, and stillbirths, and postpartum diseases). After weaning, the weaning-estrus interval and rate of return to estrus were assessed. A thermographic camera was used to identify hyperthermia of the mammary system and its relation with... |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Animal health; Cystitis; Mortality; Pigs; Reproduction. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100410 |
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Alves,Marília Carvalho Figueiredo; Paz,Ibiara Correia de Lima Almeida; Nääs,Irenilza de Alencar; Garcia,Rodrigo Garófallo; Caldara,Fabiana Ribeiro; Baldo,Grace Alessandra de Araujo; Garcia,Edivaldo Antônio; Molino,Andréa de Britto. |
ABSTRACT This study aimed to evaluate the relationship between the steadiness of broilers during the stance phase of locomotion, and the primary disorders of the locomotor system and gait. The experimental design was completely randomized, in a factorial arrangement (2 × 2 + 32), indicating two sexes and two genetic commercial strains, with five replications of 53 broilers each, and 32 (16 males and 16 females) indigenous chickens. Gait score and valgus and varus condition were assessed. Pictures of the birds were taken and evaluated. The broiler body was considered a spherical shape, and the centroid was calculated. From the geometric center of the body, a line was drawn perpendicularly to the sphere radius that formed an angle (ANG) with the other... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone pathology; Postural balance; Welfare. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000700372 |
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Belintani,Rafael; Garcia,Rodrigo Garófallo; Nääs,Irenilza de Alencar; Borille,Rodrigo; Sgavioli,Sarah; Caldara,Fabiana Ribeiro; Lima,Nilsa Duarte da Silva. |
ABSTRACT This study aimed to identify the influence of climate pattern and rearing conditions on broiler carcass condemnations observed during processing. We evaluated the registered data of 2015 from the federal inspection files in all broiler slaughterhouses located in the state of Mato Grosso do Sul, Midwestern Brazil. The percentages of condemnations by airsacculitis, cellulitis, dermatosis, ascites syndrome, total carcass condemnations, and average broiler weight at 42 days were analyzed. Data were associated with housing systems and season of the year in which each flock was reared. Two-way ANOVA was applied to the data in a completely randomized design 4×3 (four seasons and three houses) and compared by Tukey's test. The results indicated that the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Meat; Production system; Slaughterhouse. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100103 |
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Nääs,Irenilza de Alencar; Paz,Ibiara Correia de Lima Almeida; Baracho,Marta dos Santos; Menezes,Adriana Gomes de; Lima,Karla Andrea Oliveira de; Bueno,Leda Gobbo de Freitas; Mollo Neto,Mario; Carvalho,Victor Ciaco de; Almeida,Ianê Correia de Lima; Souza,Anderson Luiz de. |
Locomotion deficiencies in broiler production cause poor welfare and lead to change in drinking and feeding behavior with consequent loss in weight gain. This research aimed to assess locomotion deficiencies in broiler chicken by analyzing the vertical peak force on both feet during walk. A chamber was built with an inlet ramp, a horizontal walkway in the middle and an outlet ramp. In the walkway a thin mat with piezoelectric crystal sensors was placed to record the step vertical peak force of the feet while walking on the force platform. The measurement system consisted of a mat with electronic sensors and software that allowed real time recording of the forces and the processing and analysis of data. Footage was taken from two digital video cameras and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry production; Gait scoring; Feet force measurement; Welfare. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200001 |
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Alencar,Maria do Carmo Baracho de; Nääs,Irenilza de Alencar; Salgado,Douglas D'Alessandro; Gontijo,Leila Amaral. |
Brazilian broiler industry adds a significant contribution to country's exports, employing around five million workers in the production chain. The human work involves multiple aspects, including values, beliefs related to work, cultural aspects, personality, motivation etc. The aim of this research was to analyze the associations between broiler accumulated mortality and workers' beliefs related to work, and influences of the supervisors. The study took place in the state of Paraná, Brazil involving 80 broiler integrate farms and 60 workers. A pre-elaborated questionnaire was applied to the workers containing questions related to their health and to some beliefs related to work, as an interview where they could express their feelings. The normal tasks... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler production; Ergonomics; Human work. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000600003 |
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Brunassi,Leandro dos Anjos; Moura,Daniella Jorge de; Nääs,Irenilza de Alencar; Vale,Marcos Martinez do; Souza,Silvia Regina Lucas de; Lima,Karla Andrea Oliveira de; Carvalho,Thayla Morandi Ridolfi de; Bueno,Leda Gobbo de Freitas. |
Production losses due to lack of precision in detecting estrus in dairy cows are well known and reported in milk production countries. Nowadays automatic estrus detection has become possible as a result of technical progress in continuously monitoring dairy cows using fuzzy pertinence functions. Dairy cow estrus is usually visually detected; however, solely use of visual detection is considered inefficient. Many studies have been carried out to develop an effective model to interpret the occurrence of estrus and detect estrus; however, most models present too many false-positive alerts and because of this they are sometimes considered unreliable. The objective of this research was to construct a system based on fuzzy inference functions evaluated with a... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estrus cycle; Artificial intelligence; Expert system. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000500002 |
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Nääs,Irenilza de Alencar; Romanini,Carlos Eduardo Bites; Salgado,Douglas D'Alessandro; Lima,Karla Andrea Oliveira; Vale,Marcos Martinez do; Labigalini,Marcelo Ricardo; Souza,Silvia Regina Lucas de; Menezes,Adriana Gomes; Moura,Daniella Jorge de. |
Global warming is affecting agribusiness in its economic aspects. Therefore, the prediction of the evolution of Brazilian beef cattle production cost was made using the IPCC forecast scenario for global warming. The methodology consisted of two steps: (i) the development of a fuzzy model that estimated the grazing land capacity (RP) decrease risk as a function of the changes in the average total rain index, air temperature and increase in extension of the dry season; and (ii) the design of an algorithm for predicting the decrease in production as function of the RPfuzzy model, that results in the impact in beef cattle productivity, and consequent increase in production costs. Historical environmental data from important producing counties in the Cerrado... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dry season; Environmental temperature; Fuzzy simulation; Mathematical modeling. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100001 |
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Miragliotta,Miwa Yamamoto; Nääs,Irenilza de Alencar; Manzione,Rodrigo Lilla; Nascimento,Fernando Ferraz do. |
Broiler building typology associated with the local characteristics (climate, topography and surrounding vegetation) and handling systems (stocking density, curtains, equipment and nutrition) influence the inside environment. A spatial distribution analysis of these conditions may indicate stress zones in the house. The aim of this research was to apply spatial analysis of thermal, aerial and acoustic environmental conditions inside a tunnel ventilated broiler housing, with a stocking density of 18 birds m-2. This study was carried out in Rio Claro, SP, Brazil, in a 12 m × 115 m house divided into three equal sections (East, center and West), East-West oriented, and virtually divided on 132 cells, each one measuring 3.0 m × 3.5 m. At the geometric center... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler production; Environment; Geostatistics; Heat stress; Spatial distribution. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000500002 |
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Marcheto,Francine Galhiardo; Nääs,Irenilza de Alencar; Salgado,Douglas D'Alessandro; Souza,Silvia Regina Lucas de. |
O resultado da exposição de vacas em produção em ambiente adequado, pode ter reflexo na produtividade leiteira, por permitir o uso correto de equipamentos reduzindo o estresse térmico nos animais, e consequentemente, melhorando a produtividade. No presente trabalho avaliou-se o efeito das temperaturas de bulbo seco e de globo negro, na produção de vacas leiteiras alojadas em sistema de freestall, utilizando-se dois grupos de vacas: mais produtivas, com produção acima de 29 kg/dia e menos produtivas, com produção média abaixo de 14 kgdia-1. Os resultados mostraram os efeitos das variáveis ambientais e do índice de temperatura e umidade regional, no declínio da produção de leite. Não houve correlação significativa entre os valores do índice e o declínio na... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conforto Térmico; Produção Leiteira; Temperatura Ambiente; Ambiência Animal. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000600008 |
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Nääs,Irenilza de Alencar; Queiroz,Marcos Paulo Garcia; Moura,Daniella Jorge de; Brunassi,Leandro dos Anjos. |
O Brasil é o sexto maior produtor de leite do mundo, sendo que essa produção cresce a uma taxa anual 4% superior aos demais países produtores. Parte desse aumento na produção de leite deve-se ao uso de diversas tecnologias desenvolvidas para o setor, principalmente, aquelas relacionadas à genética e ao manejo do rebanho. A detecção acurada do cio em vacas é um fator limitante na eficiência reprodutiva do rebanho leiteiro, sendo considerada uma das principais deficiências na reprodução bovina. Falha na identificação do estro com eficiência ocasiona perdas para o produtor. Métodos quantitativos preditivos, baseados em dados históricos e conhecimento especialista, permitem, a partir de uma base de dados organizada, a predição de padrões com baixa percentagem... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Modelagem preditiva; Mineração de dados; Lógica Fuzzy. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000800048 |
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Sampaio,Carlos Augusto de Paiva; Nääs,Irenilza de Alencar; Baracho,Marta dos Santos; Salgado,Douglas D'alessandro. |
Esta pesquisa foi desenvolvida em duas instalações para suínos nas fases de creche e terminação, em duas salas cada, em granjas localizadas no município de Salto, SP, com os objetivos de avaliar a concentração de amônia e poeira e a presença de fungos, além de estimar os riscos de exposição ocupacional a esses agentes ambientais. As avaliações foram realizadas conforme preceituam as normas NR-15, NIOSH e ACGIH. Os resultados indicaram diferença significativa nas concentrações de amônia em relação aos horários, às instalações e aos períodos do dia. Estes também indicam negligência para a questão da ventilação sanitária nas instalações de creche, com conseqüentes teores mais altos de amônia, e que estes estão vinculados à circulação de ar no interior das... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amônia; Fatores ambientais; Fungo; Poeira; Suíno. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000200030 |
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Registros recuperados: 21 | |
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