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Sound analysis to model weight of broiler chickens
Ilaria Fontana1, Emanuela Tullo1, Lenn Carpentier2
1Department of Environmental Science and Policy, Università degli Studi di Milano, via Celoria 10, 20133, Milan, Italy.
Poultry Science
|October 21, 2017
Summary
Broiler chicken weight can be accurately estimated using sound frequency analysis. This research validates a model for non-invasive growth monitoring in Precision Livestock Farming, improving flock management.
Area of Science:
- Animal Science
- Agricultural Engineering
- Acoustics
Background:
- Broiler chicken growth monitoring is crucial for optimizing feed conversion ratio and flock management.
- Sound analysis offers a non-invasive method to assess animal physiological and developmental parameters.
- Previous research indicates a strong correlation between broiler vocalization frequency and their age/weight.
Purpose of the Study:
- To develop and validate a predictive model for broiler chicken growth rate based on vocalization peak frequencies.
- To explore the feasibility of an automated tool for real-time chicken growth detection using sound analysis.
- To contribute to the development of Precision Livestock Farming (PLF) tools for enhanced broiler management.
Main Methods:
- Continuous recording of chicken sounds and body weight across five commercial production cycles.
- Utilizing peak frequencies from chicken vocalizations to estimate bird weight.
- Comparing estimated weights with data from on-farm automated weighing devices.
Main Results:
- A validated model demonstrated that broiler weight can be predicted from the peak frequency of their vocalizations.
- High correlation (r = 96%, P ≤ 0.001) observed between estimated and automatically measured weights.
- No significant differences were found between predicted and observed weights throughout the production cycles.
Conclusions:
- Frequency analysis of broiler vocalizations provides a reliable, non-invasive method for estimating bird weight.
- This approach shows potential for developing novel, automated monitoring systems in broiler houses.
- Further refinement of the sound-based weighing method can significantly enhance Precision Livestock Farming capabilities.
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