...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Computers and Electronics in Agriculture >Design and evaluation of a lighting preference test system for laying hens
【24h】

Design and evaluation of a lighting preference test system for laying hens

机译：铺设母鸡照明偏好测试系统的设计与评价

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Understanding the lighting needs of laying hens provides crucial implications on animal welfare regulations and production stewardship in commercial egg farms. A lighting preference test system (LPTS) that is used to explore hen's lighting preference was recently designed and developed by our research team. The objectives of this study were to (1) describe the design of the LPTS, and (2) validate two algorithms that automatically determine the number of hens in individual compartments of the LPTS, and identify the reasons of false recognitions by the two algorithms. The LPTS consisted of five light-proof compartments connected in tandem. Each compartment can be operated at a desired lighting environment (e.g. lighting type, color, and intensity). Hens can move freely through passing doors between two adjacent compartments. Two loadcells and a camera were installed in each compartment to continuously monitor, respectively, the hen weight and record hen activities. Two algorithms, by image analysis (using video data) and by weight (using loadcell data), were developed to determine the real-time hen numbers in each compartment; and the accuracy of the two algorithms was determined by comparing their results to visual observation. Eight hens were kept in the LPTS and used for the algorithm validation. The validation results show that the accuracy of image analysis algorithm was 71.23%, which was much lower than that of weight algorithm (99.70%). False recognition of hen numbers by the image analysis algorithm stemmed from a variety of hen activities (e.g. feeding, wing flapping, preening, etc.) that may cause significant changing in the representing areas (or number of pixels) of animals in the images. The weight method/algorithm, on the other hand, offered a simple and accurate way to determine animal occupancy in the LPTS compartments. The newly developed LPTS and algorithms could be useful tools to investigate the preference responses and time budget of hens at different lighting conditions.
机译：了解铺设母鸡的照明需求为商业卵场的动物福利法规和生产管理提供了重要影响。最近由我们的研究团队设计和开发用于探索母猪照明偏好的照明偏好测试系统（LPTS）。本研究的目标为（1）描述了LPTS的设计，（2）验证了两种算法，该算法自动确定了LPTS的单个隔间中的母鸡数量，并确定了两个算法的虚假识别的原因。 LPTS由串联连接的五个防湿度隔室组成。每个隔室可以在所需的照明环境下操作（例如，照明型，颜色和强度）。母鸡可以通过在两个相邻隔间之间的门来自由移动。每个隔间安装两个装载单元和相机，以分别连续监测母鸡重量和记录母鸡活动。通过图像分析（使用视频数据）和重量（使用LoadCell数据）进行两种算法，以确定每个隔间中的实时母鸡数;通过将它们的结果与视觉观察比较来确定两种算法的准确性。八只母鸡被保存在LPTS中并用于算法验证。验证结果表明，图像分析算法的准确性为71.23％，远低于重量算法（99.70％）。由图像分析算法源自各种母鸡活动（例如喂养，机翼拍打，预测等）的母鸡数的假识别可能导致图像中动物的代表区域（或像素数）中的显着变化。另一方面，重量方法/算法提供了一种简单准确的方法来确定LPTS隔间中的动物占用。新开发的LPTS和算法可能是有用的工具，以研究母鸡在不同的照明条件下的偏好响应和时间预算。

著录项

  • 来源
  • 作者

    Li Guoming; Li Baoming; Shi Zhengxiang; Zhao Yang; Ma He;

  • 作者单位

    China Agr Univ Dept Agr Struct &

    Bioenvironm Engn Coll Water Resources &

    Civil Engn Beijing 100083 Peoples R China;

    China Agr Univ Dept Agr Struct &

    Bioenvironm Engn Coll Water Resources &

    Civil Engn Beijing 100083 Peoples R China;

    China Agr Univ Dept Agr Struct &

    Bioenvironm Engn Coll Water Resources &

    Civil Engn Beijing 100083 Peoples R China;

    Mississippi State Univ Dept Agr &

    Biol Engn Mississippi State MS 39762 USA;

    China Agr Univ Dept Agr Struct &

    Bioenvironm Engn Coll Water Resources &

    Civil Engn Beijing 100083 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 农业科学;
  • 关键词

    Laying hens; Lighting preference; Test system; Image analysis; Weighting method;

    机译：铺设母鸡;照明偏好;测试系统;图像分析;加权方法;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号