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Estimating the impact of environmental conditions on hatching results using multivariable analysis Rev. Bras. Ciênc. Avic.
Nääs,IA; Gigli,ACS; Baracho,MS; Almeida Paz,ICL; Salgado,DD.
Hatching results are directly related to environmental and biological surroundings. This research study aimed at evaluating the influence of incubation environmental conditions on hatchability and one-day-old chickling quality of five production flocks using multivariable analysis tool. The experiment was carried out in a commercial hatchery located in the state of São Paulo, Brazil. Environmental variables such as dry bulb temperature, relative humidity, carbon dioxide concentration, and number of colony forming units of fungi were recorded inside a broiler multi-stage setter, a hatcher after eggs transference, and a chick-processing room. The homogeneity of parameter distribution among quadrants inside the setter, the hatcher, and the chick room was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chick; Chick quality; Hatchability; Hatchery; Incubation conditions.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000400004
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Poultry Egg Incubation: Integrating and Optimizing Production Efficiency Rev. Bras. Ciênc. Avic.
Boleli,IC; Morita,VS; Matos Jr,JB; Thimotheo,M; Almeida,VR.
ABSTRACT Due to its central position in the production chain, in-ovo development is influenced by pre-incubation factors that affect the quality of embryonated eggs and incubation conditions themselves, and both may influence egg hatchability and chick quality, as well as bird survival, growth performance, and phenotype in the field. The evolution of the incubation process over the years is characterized by significant scientific and technological development. Presently, the main current focuses of research are the manipulation of thermal incubation conditions, eggshell temperature, and the integrated effects of factors that influence incubation. In this context, one of the questions that needs to be asked is how effective are the current physical...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gas exchange; Heat transfer; Incubation conditions; Incubation management; Physics of incubation.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000600001
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