Technical note: Validation of a system for monitoring individual feeding behavior and individual feed intake in dairy cattle
Technical note: Validation of a system for monitoring individual feeding behavior and individual feed intake in dairy cattle
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DOI：
10.3168/jds.2014-8925
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发表时间：
2015-05-01
影响因子：
3.5
通讯作者：
Ribas, M. N.
中科院分区：
文献类型：
--
作者：
Chizzotti, M. L.;Machado, F. S.;Ribas, M. N.
本研究的目的是验证用于监测独立饲养奶牛个体摄食行为和采食量的电子系统（Intergado Ltd., Contagem, Minas Gerais, Brazil）。没有公布的数据证实该系统的行为测量或采食量。采用Intergado系统和延时录像记录12头荷斯坦奶牛5 d内的摄食行为数据。奶牛被安装了一个耳标，其中包含一个独特的被动应答器，并免费进入12个饲料箱。该系统通过记录动物识别号、仓号、初始和最终次数以及每次访料仓开始和结束时饲料重差来记录访料期和采食量。这些数据被导出到Intergado网络软件并生成报告。将动物行为的电子数据与同一评估期间收集的视频数据进行比较。使用外部秤手动测量和验证电子系统在每次访问饲料仓时监测奶牛采食量的能力。人工测量4小时的采食量，并与同一时间段内监测系统记录的每头奶牛采食量之和进行比较。将视频和人工称重数据与电子摄食行为和采食量数据进行回归，评价监测系统的精度。Intergado系统对奶牛的检测具有很高的特异性（99.9%）和灵敏度（99.6%）。电子监控系统采集的访视时间和每次采食量与视频和人工称重数据相似。人工测量的采食量与电子记录的采食量之和之间的差异小于250 g（分别使用人工称重和电子系统估算的垂直于2,428和垂直于2,428的分别为25,635和25,391）。综上所述，Intergado系统是监测散养奶牛采食量和摄食行为的合理工具。
The objective of this study was to validate an electronic system for monitoring individual feeding behavior and feed intake (Intergado Ltd., Contagem, Minas Gerais, Brazil) in freestall-housed dairy cattle. No data have been published that validate either the behavioral measurement or the feed intake of this system. Feeding behavior data were recorded for 12 Holstein cows over 5 d using an Intergado system and time-lapse video. The cows were fitted with an ear tag containing a unique passive transponder and provided free access to 12 feed bins. The system documented the visit duration and feed intake by recording the animal identification number, bin number, initial and final times, and the difference between feed weight at start and end of each feed bin visit. These data were exported to Intergado web software and reports were generated. Electronic data on animal behavior were compared with video data collected during the same evaluation period. An external scale was used to manually measure and validate the electronic system's ability to monitor dairy cow feed intake for each feed bin visit. The feed intake was manually measured for 4-h time periods and compared with the sum of the feed intake recorded by the monitoring system for each cow visit during the same time period. Video and manual weight data were regressed on the electronic feeding behavior and feeding intake data to evaluate the precision of the monitoring system. The Intergado system presented high values for specificity (99.9%) and sensitivity (99.6%) for cow detection. The visit duration and feed intake per visit collected using the electronic monitoring system were similar to the video and manual weighing data, respectively. The difference between the feed intake measured manually and the sum of the electronically recorded feed intake was less than 250 g (25,635 perpendicular to 2,428 and 25,391 perpendicular to 2,428 g estimated using manual weighing and the electronic system, respectively). In conclusion, the Intergado system is a reasonable tool to monitor feeding behavior and feed intake for freestall-housed dairy cows.