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Comparison of environmental indicators of two aviaries for laying Hens
(2008-12-01)
The aim of this paper is to compare the environmental indicators of two housing systems for laying hens. The roof of aviary I was built with cement-asbestos tile, ridge vent, and long eaves. The roof of aviary 2 was built ...
Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages
(2008-12-01)
An experiment was carried out in order to investigate the behaviors of laying hens due to the environmental factors of: density inside of the cage, aviary type, breed, and age. The experiment was configured as a factorial ...
Influence of the environment on behavior patterns of laying hens kept in cages
(2008-12-01)
The aim of this paper is to verify the correlation between environmental indicators and behaviors expressed by laying hens kept in cages. The birds react to a severe environment through their behaviors, end the behaviors ...
Economic feasibility of acclimatization system of laying hens aviary
(2015-01-01)
Aiming at a bigger economy in the production process, in the late 90s a mechanization and automation process of the poultry houses was started in Brazil. The density was increased, worsening the environmental conditions ...
Mortality of laying hens associated with the failure of electricity supply in an acclimated shed and in a non-acclimated one
(2015-01-01)
Thermal envimnment directly influences the performance of birds and the temperature rise caused by the heat fmm birds and external environment may result in losses such as increased mortality. To minimize these losses, ...