Development of the method for status assesment of cattle by monitoring sleep stage.

2016 Fiscal Year Final Research Report

• Project/Area Number: 26450396
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Animal production science
• Research Institution: National Agriculture and Food Research Organization (2016); National Institute of Agrobiological Sciences (2014-2015)
• Principal Investigator: Yayou Ken-ichi 国立研究開発法人農業・食品産業技術総合研究機構, 畜産研究部門畜産環境研究領域, ユニット長 (40343967)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 睡眠状態 / 脳波 / 眼瞼 / ひずみセンサ / レム睡眠 / ノンレム睡眠 / エンドトキシン

Outline of Final Research Achievements

We aimed to establish a sensing technique of bovine sleeping state using a small eyelid motion sensor and to verify the validity as a state evaluation method. By attaching a small strain sensor to the eyelid, we were able to acutely capture the spasm - like behavior of the eyelids characteristic of REM sleep. Meanwhile, by administration of extremely low dose endotoxin (LPS) to reproduce extremely early inflammation, total duration of non-REM-sleep-like resting behavior increased. It has also been shown that increasing the number of occurrences, rather than the duration of each bout, has led to an increase in total duration. Therefore, it seems that it may be able to capture the early signs of infection with non-REM-sleep-like resting behavior as an indicator.

Free Research Field

家畜行動生理学