Location: Livestock Behavior Research
Project Number: 5020-32000-011-16
Start Date: May 15, 2014
End Date: Jan 01, 2017
The work will be completed in a combination of on-farm and laboratory studies. Monitoring equipment for quantification of environments (temperature, relative humidity, NH3 and CO2 concentrations) and ventilation methods will be applied to measure, manipulate, and control environmental conditions. Bird assessments will include remote and local monitoring of physiological and immunological reactions and hen behavior. On farm assessments will vary depending on the age, strain, and management strategies of available farms, but will include conventional cage (manure belt and high-rise), enriched colony, floor raised, and aviary houses. Laboratory studies will include assessments on hens reared in varying environmental conditions from incubation to cull. Mortality will be recorded over time. Samples (brain, blood and organs) will be analyzed using HPLC, RT-PCR, and RIA as well as pathological analysis, respectively. Behavior, neuroendocrine function, pathological changes and production will be compared among the treatments.