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	Provedor de dados Bragantia (1) Rev. Bras. Ciênc. Avic. (1) R. Bras. Zootec. (1) Autor Andrade,Camilo Lelis Teixeira (1) Bezerra,Francisco Marcus Lima (1) Cândido,Magno José Duarte (1) Fernandes,Francisco Ronaldo Belém (1) Grossi,Marine Cirino (1) Justino,Flávio (1) Lacerda,Claudivan Feitosa de (1) Lopes,José Wellington Batista (1) Lopes,Marcos Neves (1) Meijerhof,R (1) Molenaar,R (1) Pompeu,Roberto Cláudio Fernandes Franco (1) Reijrink,IAM (1) Rodrigues,Rafael de Ávila (1) Silva,Rodrigo Gregório da (1) Van den Brand,H (1) Mais... Palavra-chave CO2 concentration (3) Broiler embryos (1) Chlorophyll (1) Climate change (1) Crop models (1) Incubation (1) Panicum maximum (1) Photosynthesis (1) Productivity (1) Relative humidity (1) Sensitivity analyses (1) Temperature (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2015 (1) 2011 (1) 2010 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Meeting embryonic requirements of broilers throughout incubation: a review Rev. Bras. Ciênc. Avic. Molenaar,R; Reijrink,IAM; Meijerhof,R; Van den Brand,H. During incubation of chicken embryos, environmental conditions, such as temperature, relative humidity, and CO2 concentration, must be controlled to meet embryonic requirements that change during the different phases of embryonic development. In the current review, the effects of embryo temperature, egg weight loss, and CO2 concentration on hatchability, hatchling quality, and subsequent performance are discussed from an embryonic point of view. In addition, new insights related to the incubation process are described. Several studies have shown that a constant eggshell temperature (EST) of 37.5 to 38.0°C throughout incubation results in the highest hatchability, hatchling quality, and subsequent performance. Egg weight loss must be between 6.5 and 14.0%... Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler embryos; CO2 concentration; Incubation; Relative humidity; Temperature. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000300001 Gas exchange in massai grass under five nitrogen fertilization levels during establishment and regrowth R. Bras. Zootec. Lopes,Marcos Neves; Lacerda,Claudivan Feitosa de; Cândido,Magno José Duarte; Pompeu,Roberto Cláudio Fernandes Franco; Silva,Rodrigo Gregório da; Lopes,José Wellington Batista; Fernandes,Francisco Ronaldo Belém; Bezerra,Francisco Marcus Lima. The objective of this study was to evaluate gas exchange in the massai grass during establishment and regrowth cycles in a greenhouse, using five nitrogen (N) fertilization levels. A completely randomized split-plot design of five nitrogen levels (0; 150; 300; 450 and 600 mg N•dm-3 of soil) was employed with the N levels as plots, and the cycles (establishment, regrowth 1 and 2) as subplots, evaluated with five replicates. We evaluated leaf transpiration (E), leaf temperature (TFOL), leaf photosynthesis rate (A), leaf carbon dioxide concentration (Ci), stomatal conductance (gs), photosynthesis/transpiration ratio (A/E), photosynthesis/conductance ratio (A/gs), chlorophyll relative index (CRI), and nitrogen sufficiency index (NSI). Growth cycles influenced... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorophyll; CO2 concentration; Panicum maximum; Photosynthesis. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000900004 Sensitivity of the sorghum yield to individual changes in climate parameters: modelling based approach Bragantia Grossi,Marine Cirino; Justino,Flávio; Rodrigues,Rafael de Ávila; Andrade,Camilo Lelis Teixeira. Based on sensitivity analyses the effect of changing in climate on sorghum has been investigated. This has been achieved by conducting crop modeling experiments carried out with weather observations and output of global climate models. As can be anticipated results demonstrated that the sorghum yield is more sensitive to rainfall, solar radiation and CO2 concentration. However, the increase in CO2 concentration has a positive effect on yield in years that the crop is submitted to water stress. This effect is extremely reduced under well watered conditions and therefore is subject to the climate inter-annual variability. Accumulated solar radiation along the sorghum cycle below 1900 MJ m–2 has also been shown to reduce the yield. Compared to other weather... Tipo: Info:eu-repo/semantics/article Palavras-chave: Climate change; Crop models; Sensitivity analyses; CO2 concentration; Productivity. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000300341 Registros recuperados: 3 Primeira ... 1 ... Última

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