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Evaluation of a simplified model for estimating energy balance in broilers production housing AGRIAMBI
Silva,Mariano P.; Baêta,Fernando C.; Tinôco,Ilda F. F.; Zolnier,Sérgio; Ribeiro,Aristides.
The simulation of poultry house thermal behavior with and without Adiabatic Evaporative Cooling (SRAE) allows the decision makers to evaluate the economical feasibility and the installation costs of a poultry production business. The first step in this research investigation was test the thermal behavior model developed by Gates et al. (1995) for broiler houses in the United States based on the hypothesis that this model, using climatized sheds, as proposed by the authors, could be used under Brazilian conditions. The model is suitable for the proposed objective in the form proposed by Gates et al. (1995) for poultry houses with an elevated mass air flow rate (120.8 kg air s-1 or higher). A correction factor referring to a series of heat sources not...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mathematical models; Chicken production; Evaporative cooling.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662007000500014
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Technological and Economic Risk Analysis of laying hen breeding applying simulation AgEcon
Kovacs, Sandor; Ertsey, Imre; Balogh, Peter.
In order to analyse risks and to choose from different decision-making strategies simulation models are often applied in several areas of animal breeding. We developed an improved Monte Carlo model for analysing laying hen breeding combined with Bayes’ statistics. On the basis of data from a company breeding broiler parents, our paper examines the technological and economic risks of breeding a laying-hen stock with a simulation program developed by our team. During modelling we take individual cost elements and the most significant factors (different forage costs, price of sold eggs, unsuitable eggs, installing day-old chicks and old animals) affecting returns into consideration. The results can be presented in tables and graphs for both sexes as well....
Tipo: Conference Paper or Presentation Palavras-chave: Monte Carlo; Risk analysis; Chicken production; Bayessian statistics; Foraging; Livestock Production/Industries.
Ano: 2007 URL: http://purl.umn.edu/7798
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