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首页> 外文会议>International symposium on animal environment and welfare >Using Broiler Sound Frequency to Model Weight
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Using Broiler Sound Frequency to Model Weight

机译：使用肉鸡声频来模拟重量

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Chicken weight provides information about growth and feed conversion in order to identify deviations from the expected homogeneous growth trend of the birds.Precision Livestock Farming (PLF) can support the farmer through the use of sensors, cameras and microphones.Previous studies showed a significant correlation (P ＜ 0.001) between the fiequency of vocalisation and the age and weight of the broiler.In this study, recordings were made in an automated, non-invasive way through the entire life of the birds, to evaluate the frequency variation of the sounds emitted during production cycles.In total, sound data collected during 8production cycles (in an intensive broiler farm-30,000 birds reared per round) were analysed.Sound data were manually and automatically compared with the weight of the birds automatically measured.Sound analysis was performed based on the amplitude and frequency of the sound signal in audio files recorded at farm level.The aim of this study was to sample automatically broiler vocalisations under normal farm conditions, to identify and model the relation between animal sounds and growth trend, and develop a tool to automatically detect the growth level of the animals based on the frequency of the vocalisation.The model used to predict the weight as a function of the Peak Frequency (PF) confirmed that the animal weight could be predicted by the frequency analysis of the sounds emitted at farm level although a more accurate editing of the audio file is necessary.
机译：鸡的重量提供了有关以从birds.Precision畜牧业（PLF）的预期均匀的增长趋势与其不同生长和饲料转化的信息可以通过使用传感器，摄像机和microphones.Previous研究支持农民呈显著相关发声的fiequency和broiler.In本研究的年龄和体重之间（P <0.001），录音被在自动的，非侵入性的方式，通过鸟类的整个生命制成，以评价的声音的频率变化在生产过程中cycles.In总的发射，在8production周期收集的声音数据（在重症肉鸡场-30000鸟类每轮饲养）为analysed.Sound数据是手动和自动进行自动分析measured.Sound鸟的重量相比基于在农场记录level.The目的本研究的音频文件的声音信号的幅度和频率是自动采样正常农场条件下烯丙基肉鸡发声，以识别和动物的声音和增长的趋势之间的关系进行建模，和开发工具来自动检测基于用于预测的权重作为vocalisation.The模型的频率的动物的生长水平的峰值频率（PF）的函数证实，动物体重可通过在农场水平发射尽管音频文件的更精确的编辑是必要的声音的频率分析来预测。

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