Acoustic monitoring of short-term ingestive behavior and intake in grazing sheep
Acoustic monitoring of short-term ingestive behavior and intake in grazing sheep
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DOI：
10.1016/j.livsci.2011.02.007
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发表时间：
2011-09-01
影响因子：
1.8
通讯作者：
Laca, Emilio A.
中科院分区：
文献类型：
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作者：
Galli, Julio R.;Cangiano, Carlos A.;Laca, Emilio A.
对放牧绵羊的消化行为进行声学监测，以研究采食率的决定因素，并根据咬咬和咀嚼的声音估计干物质采食量(DMI)。对3只体重为85+/-6.0 kg的杂交母羊进行了16个处理，每个处理由两个饲草品种(鸭茅和紫花苜蓿)、两个生物量消耗水平(高=30+/-0.79 cm，矮=14+/-0.79 cm)和四个咬合次数(20、40、60和80次)组成。在每次放牧过程中，用放置在母羊额头上的无线麦克风记录咬和咀嚼的声音，并连接到数字摄像机，以同步记录摄食行为的音频和视频。干物质(DM)采食率，紫花苜蓿高于果园草(9.4+/-0.64比7.8+/-0.58g/min，P
Acoustic monitoring of the ingestive behavior of grazing sheep was used to study the determinants of intake rate and to estimate dry matter intake (DMI) based on biting and chewing sounds. Each of three crossbred ewes (85 +/- 6.0 kg body weight) were tested in 16 treatments resulting from the factorial combination of two forage species (orchardgrass and alfalfa), two levels of biomass depletion (tall = 30 +/- 0.79 cm and short = 14 +/- 0.79 cm) and four numbers of bites (20, 40, 60 and 80 bites). During each grazing session biting and chewing sounds were recorded with a wireless microphone placed on the ewe's forehead and connected to a digital video camera for synchronized audio and video recording of ingestive behavior. Dry matter (DM) intake rate was higher for alfalfa than orchardgrass (9.4 +/- 0.64 vs. 7.8 +/- 0.58 g/min, P