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Vibration on poultry transporters
J M Randall1, W V Streader, A M Meehan
1AFRC Silsoe Research Institute, Silsoe, Bedford, England.
British Poultry Science
|September 1, 1993
Summary
This study measured vibration acceleration in broiler transporters. Air suspension showed higher lateral vibration, and overall levels may cause discomfort to birds.
Area of Science:
- Agricultural Engineering
- Animal Welfare Science
- Transportation Engineering
Background:
- Broiler transport involves significant vibration exposure.
- Understanding vibration is crucial for animal welfare and product quality.
- Different suspension systems (leaf vs. air) may impact vibration levels.
Purpose of the Study:
- To quantify vibration acceleration magnitudes and frequencies in broiler transporters.
- To compare vibration characteristics between leaf and air suspension systems.
- To assess the potential impact of measured vibrations on broiler welfare.
Main Methods:
- Utilized triaxial accelerometers to measure vibration.
- Measurements were taken on the chassis and within bird containers.
- Tested both loaded and unloaded vehicles with leaf and air suspension.
Main Results:
- Vertical axis fundamental frequency ranged from 1-2 Hz with a secondary peak at 10 Hz.
- Air suspension exhibited higher lateral chassis vibration (12-18 Hz) compared to leaf suspension.
- Vibration levels in bird containers were comparable to human discomfort thresholds.
Conclusions:
- Vibration characteristics differ significantly between leaf and air suspension systems.
- Measured vibration levels suggest potential welfare concerns for broiler chickens.
- Further research is needed on frequency weightings and axis-specific responses to predict bird reactions accurately.