Buscar
Mostrando ítems 1-10 de 2647
Mortality, production and quality of eggs of different rearing systems
(2018-07-01)
The conventional production of eggs in cage systems is intense and compromises the laying hens welfare. More demanding consumer markets have been pushing to abolish the use of cages and thus provide better welfare in poultry ...
Methods to evaluate the eggshell quality of table eggs
(2019-01-01)
The objectives of this study were to determine the most suitable probe diameter and egg position to perform the eggshell breaking strength test using a texturometer, as well as the most reliable parameter to estimate ...
Heat loss of fertile eggs on the road between the hatchery and hatcher
(2016-01-01)
The microenvironment around the fertile egg on incubation process can influence the development of the embryo and reflect on the hatching rate in the post-hatching performance, and also the quality of the hatched chicks. ...
Effect of the Inclusion of Organic Copper, Manganese, And Zinc in The Diet of Layers on Mineral Excretion, Egg Production, and Eggshell Quality
(Facta-fundacio Arnco Ciencia Tecnologia Avicolas, 2015-10-01)
This study aimed at evaluating the replacement of inorganic copper, manganese, and zinc sources by organic sources in the diet of laying hens during the second laying cycle in trace mineral excretion, egg production, and ...
Influence of a Commercial Hatchery Thermal Environmental on the Heat Loss of Fertile Broiler Eggs
(Facta-fundacio Arnco Ciencia Tecnologia Avicolas, 2016-10-01)
The objectives of this study were to monitor the thermal environment of different hatchery locations during the transfer of fertile eggs from the setter and to the hatcher, to measure egg heat loss, and to determine its ...
Fuzzy modeling to predict chicken egg hatchability in commercial hatchery
(Poultry Science Assoc Inc, 2012-10-01)
Experimental studies have shown that hatching rate depends, among other factors, on the main physical characteristics of the eggs. The physical parameters used in our work were egg weight, eggshell thickness, egg sphericity, ...
Salmonella serovars in laying hen flocks and commercial table eggs from a region of Sao Paulo State, Brazil
(Facta-fundacio Arnco Ciencia Tecnologia Avicolas, 2014-04-01)
Salmonella spp. is the main originator of human foodborne diseases worldwide and is mainly transmitted by food containing eggs. In Brazil, as a result of the lack of studies and data collection very little is known about ...
Correlations between thermal environment and egg quality of two layer commercial strains
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2008-06-01)
Heat stress limits the productivity of laying hens, as reflected by egg production and egg quality. The present study aimed at showing the correlations between egg quality parameters and environmental variables recorded ...
Correlations between thermal environment and egg quality of two layer commercial strains
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2008-06-01)
Heat stress limits the productivity of laying hens, as reflected by egg production and egg quality. The present study aimed at showing the correlations between egg quality parameters and environmental variables recorded ...