【摘要】 为自由牧食藏羊全天食草能力评估模型的建立奠定基础,采集人工喂食及自由牧食藏羊的食草音频数据,比较分析不同饲养方式下藏羊食草咀嚼声音信号特征。结果表明:藏羊在人工喂食、自由牧食过程中的平均单次咀嚼持续时间均在0.39s左右,单次咀嚼持续时间趋于稳定的过程中,藏羊平均单次咀嚼食草量可由单次咀嚼持续时间估算。自由牧食藏羊全天食草量(不含藏羊反刍行为)可由单次咀嚼持续时间和全天单次咀嚼次数组合估算。更多还原

【Abstract】 The grazing chewing voice signal characteristics of Tibetan sheep under artificial feeding and free grazing patterns were collected and comparatively analyzed to lay the foundation for establishing the evaluation model of Tibetan sheep’s all-day grazing capacity under free grazing pattern.Result:The average single chewing duration of Tibetan sheep under artificial feeding and free grazing patterns is about0.39 sand the single chewing duration tends to a stable process.The grazing quantity per single chewing of Tibetan sheep can be estimated by single chewing duration.The all-day grazing quantity(excluding ruminant behavior)of Tibetan sheep under free grazing pattern can be estimated by single chewing duration and all-day single chewing time.更多还原