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	Provedor de dados Scientia Agricola (1) Ciência Rural (1) Rev. Bras. Ciênc. Avic. (1) Autor Bernardi,Mari Lourdes (1) Bortolozzo,Fernando Pandolfo (1) Conti,Dante (1) Detsch,Denise Trevisoli (1) Diniz-Ehrhardt,Maria Aparecida (1) Gaggini,Thais Schwarz (1) Gencoglan,S (1) Magnabosco,Diogo (1) Manica,Samuel (1) Martínez,José Mario (1) Perin,Jonas (1) Wentz,Ivo (1) Mais... Palavra-chave Temperature control (3) Evaporative snout cooling system (1) Heat and moisture production (1) Heat balance (1) Heat stress (1) Optimization (1) Partial differential equations (PDE) (1) Piglet (1) Self-correcting model (1) Thermoregulation (1) Ventilation systems (1) Voluntary feed intake (1) Weibull method (1) Weight (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2018 (2) 2016 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Evaporative snout cooling system on the performance of lactating sows and their litters in a subtropical region Ciência Rural Perin,Jonas; Gaggini,Thais Schwarz; Manica,Samuel; Magnabosco,Diogo; Bernardi,Mari Lourdes; Wentz,Ivo; Bortolozzo,Fernando Pandolfo. The aim of the study was to evaluate the influence of different temperature control systems on the voluntary feed intake (VFI), percentage of weight loss (PWL) and performance of lactating sows as well as on the weight of their piglets. Two systems were used: traditional temperature control system (TTCS) with curtain management and an evaporative snout cooling system (ESCS). The study was performed during the summer of 2011. After farrowing and at the weaning, 241 sows were weighed to evaluate the PWL during lactation. TTCS sows lost more weight (5.3±0.9%; P<0.05) than ESCS sows (2.2±0.9%). VFI was measured at intervals of four days in 32 primiparous and 39 multiparous sows. ESCS sows had higher VFI (5.8±0.2kg day-1; P<0.05) than TTCS sows (4.8±0.2kg... Tipo: Info:eu-repo/semantics/article Palavras-chave: Heat stress; Piglet; Weight; Evaporative snout cooling system; Temperature control; Voluntary feed intake. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000200342 Heat Requirements of Two Layer Strains Placed on Different Dates Rev. Bras. Ciênc. Avic. Gencoglan,S. ABSTRACT This study was conducted to calculate the heat requirements of Hy-line W-36 and Hy-line W-98 layer chicks placed on different dates, and to select one of these strains based on heat requirements and egg prices. An environmentally-controlled, mechanically-ventilated, and fan and pad-cooled house with a capacity of 94,500 chicks was designed. Based on the identification of September as the month with the highest egg prices, placement dates were selected (16th of March, 1st of April, 16th of April, 23rd of April and 1st of May) to coincide with economic egg weight in that month. The heat requirements for a rearing period of 35days of both evaluated strains starting on the above-mentioned dates were calculated using heat and moisture balance method... Tipo: Info:eu-repo/semantics/article Palavras-chave: Heat and moisture production; Heat balance; Temperature control; Thermoregulation; Weibull method. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000300471 On the controlling of temperature: A proposal for a real-time controller in broiler houses Scientia Agricola Detsch,Denise Trevisoli; Conti,Dante; Diniz-Ehrhardt,Maria Aparecida; Martínez,José Mario. ABSTRACT: Environmental conditions in broiler houses, specifically temperature, are key factors that should be controlled to ensure appropriate environment for broiler rearing. In countries with tropical/subtropical climate, like Brazil, high temperatures produce heat stress to animals, affecting the production process. This research proposes a real-time model to control temperature inside broiler houses. The controller is a self-correcting model that makes real-time decisions on the ventilation system operation (exhaust fans) together with temperature prediction at the facility. The model involves partial differential equations (PDE) whose parameters are updated according to data registered in real-time. Some experiments were carried out at a pilot farm... Tipo: Info:eu-repo/semantics/article Palavras-chave: Partial differential equations (PDE); Temperature control; Optimization; Self-correcting model; Ventilation systems. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000600445 Registros recuperados: 3 Primeira ... 1 ... Última

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