| 融合体尺信息的封闭式种猪性能测定站设计与试验 |
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| 引用本文： | 黎煊,刘诗尧,赵书红,刘望宏,雷明刚,徐迪红.融合体尺信息的封闭式种猪性能测定站设计与试验[J].农业机械学报,2022,53(7):267-274. |
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| 作者姓名： | 黎煊 刘诗尧 赵书红 刘望宏 雷明刚 徐迪红 |
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| 作者单位： | 农业农村部智慧养殖技术重点实验室;中国农业科学院深圳农业基因组研究所;农业农村部智慧养殖技术重点实验室;岭南现代农业科学与技术广东省实验室深圳分中心;农业农村部种猪质量监督检验测试中心（武汉）;农业农村部智慧养殖技术重点实验室;华中农业大学深圳营养与健康研究院 |
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| 基金项目： | 国家自然科学基金项目（31790414）、国家重点研发计划项目（2018YFD0500702）、中央高校基本科研业务费专项资金项目（2662020GXPY009）和华中农业大学-中国农业科学院深圳农业基因组研究所合作基金项目（SZYJY2022031） |
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| 摘 要： | 针对现有封闭式种猪性能测定站自动化程度不高、无法提供种猪体尺信息等问题，设计了一种集种猪自动识别、体质量自动称量、采食量自动统计、体尺自动测量于一体的封闭式种猪性能测定站。该系统机械部分采用前后端分离设计，通过设计采食门装置和门禁装置为种猪提供封闭测量环境，在此基础上，基于FIR滤波设计了种猪体质量动态称量算法，基于椭圆拟合设计了种猪理想姿态筛选算法，并进一步提出了基于包络分析的种猪体尺测量算法。分别进行了利用实际猪群模拟种猪生长性能验证试验和体尺测量试验，试验验证结果如下：生长性能试验猪群自由采食日均次数8.94次、日均采食时间92.93 min、群体料肉比2.66,Logistic拟合的生长曲线拐点日龄为126.18 d、拐点体质量72.70 kg,符合猪群的生长规律；体尺测量试验中猪群能够筛选出理想姿态帧，体长、体宽、臀宽、体高、臀高等体尺的平均相对检测误差分别为3.69%、2.53%、2.60%、2.59%、2.17%,满足体尺测量要求。试验结果表明，本文设计的封闭式种猪性能测定站可用于种猪的生产性能测定，能够同时提供种猪体质量、采食量和体尺等信息，提高育种效率。
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| 关 键 词： | 种猪 封闭式 性能测定 动态称量 姿态筛选 体尺 |
| 收稿时间： | 2022/2/15 0:00:00 |
Development and Experiment of Closed Performance Measuring Station for Breeding Pig Integrating Body Size Information |
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| LI Xuan,LIU Shiyao,ZHAO Shuhong,LIU Wanghong,LEI Minggang,XU Dihong.Development and Experiment of Closed Performance Measuring Station for Breeding Pig Integrating Body Size Information[J].Transactions of the Chinese Society of Agricultural Machinery,2022,53(7):267-274. |
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| Authors: | LI Xuan LIU Shiyao ZHAO Shuhong LIU Wanghong LEI Minggang XU Dihong |
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| Institution: | Key Laboratory of Smart Farming for Agricultural Animals, Ministry of Agriculture and Rural Affairs;Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences;Key Laboratory of Smart Farming for Agricultural Animals, Ministry of Agriculture and Rural Affairs;Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture;The Breeding Swine Quality Supervision and Testing Center, Ministry of Agriculture and Rural Affairs (Wuhan); Key Laboratory of Smart Farming for Agricultural Animals, Ministry of Agriculture and Rural Affairs;Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University |
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| Abstract: | In view of the problems that the existing closed breeding pig performance measurement station is less researched at home and abroad, the degree of automation is not high, and the body size information of breeding pigs cannot be provided. The enclosed breeding pig performance measurement system was designed, which integrated automatic breeding pig identification, automatic weight weighing, automatic feed intake statistics and automatic body size measurement. The front and back end separation design was adopted in the mechanical part of the system. Feeding device and access controlling device were designed to provide a closed measurement environment for breeding pigs. On this basis, the dynamic weighing algorithm of breeding pigs was designed based on FIR filter, the ideal pose selection algorithm of breeding pigs was designed based on ellipse fitting, and the size measurement algorithm of breeding pigs based on envelope analysis was further proposed. The growth performance and body size of simulated breeding pigs were measured respectively. The experiment verification results were as follows: the daily feeding times of pigs were 8.94, the daily feeding time was 92.93min, the feed to meat ratio of pigs was 2.66, the inflection age of growth curve was 126.18d, and the inflection weight was 72.70kg, which were in line with the growth law of pigs in the growth performance experiment. Ideal pose frames were selected for body size measurement experiment pigs. The average relative detection errors of body length, body width, hip width, body height and hip height were 3.69%, 2.53%, 2.60%, 2.59% and 2.17%, respectively, meeting the requirements of body size measurement. The results showed that the closed breeding station designed could be used to measure the production performance of breeding pigs, and the information of weight, feeding and body size of breeding pigs at the same time could be provided to improve the breeding efficiency and promote the development of domestic production of breeding pigs. |
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| Keywords: | breeding pig closed type performance measurement dynamic weighing screening gesture body size |
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