CAMERINI, N. L.; http://lattes.cnpq.br/1465717046390476; CAMERINI, Nerandi Luiz.
Résumé:
The general objective of this research was to evaluate the welfare of laying hens in two
different systems: Enriched Cage (EC) and Alternative System (AS) and the quality of
these systems in relation of behavioral, physiological and productive aspects. The
experiment was conducted in a climatic chamber of LaCRA - Laboratory of Rural
Constructions and Ambience, in the Federal University of Campina Grande - Paraíba
State, Brazil. The research consisted of three experimental periods of 28 days each one.
It was used 72 birds of lineage Dekalb White at 27 weeks of age. The light regime was
set at 16 hours light and 8 hours of darkness. The experimental design was completely
randomized in 2x3 factorial (two creation systems and three environmental conditions:
20 °C, 26 °C and 32 °C) with six replicates and relative humidity of 60%. This research
analyzed different parameters: production; physiological aspects; zootechnical
performance; egg quality and thermography. Processing techniques and image analysis
may come to contribute to the search for information contained in images of confined
animais. Both creation systems used in this study showed no large differences in the
variables analyzed. Both systems may be compatible in performance and quality of eggs
produced.
