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Fully automated monitoring tool to detect feed uptake of multiple broiler chickens by sound analysis
(European Conference on Precision Livestock Farming, 2015) Aydın, Arda; Viazzi, S.; Bahr, C.; Berckmans, D.
This paper extends existing research on feed intake of broiler chickens and describes an advanced monitoring system to accurately measure the feed intake of broiler chickens at group level using a real-time sound processing technology. By contrast to previous work which monitored the sounds made by a single chick, the pecking sounds of 10 male, 39-day old broiler chickens were recorded in this study. At the same time, the appearance of the chickens around the feeding pan was recorded by a 3D camera that was positioned in top view above the feeding pen. Simultaneously, a weighing system was used to automatically record feed uptake of broilers as a reference method. The feed uptake of broiler chickens was calculated by analysing the pecking sounds. The relationship between feed uptake obtained by the sound algorithm and feed uptake recorded by the weighing scale was investigated. The Pearson Product Moment Correlation test (PPMCC) was performed to define the correlation between these two variables and resulted in R2 = 0.997. In addition to this high correlation, 86% of the feed intake was correctly classified using sound analysis.