Technical Feasibility of the Acclimatization System in Aviary of Posture: A Case Study

Abstract

ABSTRACT:The objective of this study was to compare the performance of laying hens between automated aviaries, one with and another without acclimatized system. On a daily basis it was registered in each aviary the mortality, the egg production, and the feed consumption. The variables of the dry bulb temperature, relative humidity and black globe temperature were registered every 30 minutes using the thermos hygrometer. Every 28 days ninety eggs from each aviary were collected randomly and the variables egg weight, shell weight, shell thickness and Haugh Unit were registered. The consumption and quality of the electrical energy supply were monitored every 30 minutes using registers of electrical magnitude. The results showed that the acclimatization system consumes more electrical energy; however it provides thermal environment more suitable for bird raising, resulting in better production and quality of the eggs. The quality of the electrical energy supply was not maintained, since several interruptions occurred which resulted in higher mortality in the acclimatized aviary. It was concluded that the acclimatization system is technically feasible, since the electrical energy supply is guaranteed.

Spatial behavior of the thermo-luminous conditions of facility laying hens in naturally ventilated vertical system

“…In this region, the winters are dry and the summers rainy, which may explain the great variation found between the values of air relative humidity inside the facility. The values of air temperature and air relative humidity obtained were lower than average values found by Pereira et al (2017) in naturally ventilated facilities for laying hens in the region of Bastos-SP, both winter and summer. The difference in average values of air temperature and air relative humidity between the studies demonstrates the effect of regional climatic conditions on the thermal conditions inside the facility.…”

An Evaluation of the Thermal and Luminous Environment of Laying Hen Aviaries Equipped With Light-Emitting Diode and Compact Fluorescent Lamps and Their Effects on Production and Egg Quality

“…Thermo-luminous conditions can cause losses in the production and quality of eggs. Pereira et al (2017) verified the correlation between the thermal environment and laying hen performance when the hens were lodged in commercial houses with and without a climatization system. Higher egg production, better external egg quality, and higher feed intake were observed for hens lodged under adequate air temperature and humidity conditions.…”

“…This result agrees with the Hy-Line W-36 Management Guide (2011), which reports that the RH ideal conditions inside sheds occur mainly in the morning. Pereira et al (2017) evaluated the performance of commercial laying hens in automated aviaries with and without system climatization, concluding that the birds present better results in egg production and quality in a more suitable thermal environment.…”