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Infrared thermography applied to the evaluation of metabolic heat loss of chicks fed with different energy densities Rev. Bras. Ciênc. Avic.
Ferreira,VMOS; Francisco,NS; Belloni,M; Aguirre,GMZ; Caldara,FR; Nääs,IA; Garcia,RG; Almeida Paz,ICL; Polycarpo,GV.
Brazil must comply with international quality standards and animal welfare requirements in order to maintain its position as world's largest exporter of poultry meat. With the scenario of global climate change there is the forecast of occurrence of extreme events with characteristics of both excess cold and heat for several regions of the country. This study aimed to evaluate the effectiveness of using images of infrared thermography to evaluate the loss of sensible heat in young broilers fed different dietary energy levels. Twenty birds were reared in a house with appropriate brooding using infrared lamps. Birds were distributed in a completely randomized experimental into two treatments: T1 (control diet with 2950 kcal ME/kg-1), and T2 (high-energy diet...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy-dense diet; Infrared thermal imaging; Metabolic heat; Poultry; Wellbeing.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000200005
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Selecting appropriate bedding to reduce locomotion problems in broilers Rev. Bras. Ciênc. Avic.
Almeida Paz,ICL; Garcia,RG; Bernardi,R; Nääs,IA; Caldara,FR; Freitas,LW; Seno,LO; Ferreira,VMOS; Pereira,DF; Cavichiolo,F.
Two experiments were carried out at the Poultry Sector of the School of Agrarian Sciences of the Federal University of Grande Dourados to evaluate the incidence of leg problems in broilers reared on two distinct types of bedding material: rice husks or wood shavings, both new and reused. In both trials, a randomized experimental design was applied in factorial arrangement (2 x 2 x 2) using two genetic strains (Cobb® or Ross®); two sexes (male or female), and two litter materials (rice husks or wood shavings). In each trial 1080 one day pullets were reared equally divided in the treatments. The birds were placed in 4.5 m² boxes at a density of 10 birds m-2. All birds were fed diets with equal nutritional density, and water was offered ad libitum. Feeds were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gait score; Leg problems; Multicriteria analysis; Rice husks; Wood shaving.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000300008
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Selecting the most adequate bedding material for broiler production in Brazil Rev. Bras. Ciênc. Avic.
Garcia,RG; Almeida Paz,ICL; Caldara,FR; Nääs,IA; Pereira,DF; Ferreira,VMOS.
Broiler chicken production is widely dispersed across the globe, and one important issue for growers is the selection of adequate bedding material, as the availability and price of substrates varies among countries and regions within a same country. This study aimed at applying a multiple criteria analysis approach for the selection of the most appropriate bedding material for broiler production. Based on field research data and growers' experience, the most desirable characteristics of a litter material were chosen as the main criteria. The selected materials were wood shavings, rice husks, chopped Napier grass (Pennisetum pupureum), 50% sugar cane bagasse (Saccharum L.) plus 50% wood shavings, 50% sugar cane bagasse (Saccharum L.) plus 50% rice husks,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative bedding material; Broiler production; Multiple criteria analysis; AHP.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000200006
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