PROBLEM TO BE SOLVED: To provide a device and system for collecting animal biological information, capable of being operated with low power consumption without increasing a possibility of missing biological information.SOLUTION: The device for collecting animal biological information includes: a counting part 1 for measuring the number of times of motions representing biological information of an animal； a number storing part 21 for storing the accumulated number of times of motions as the value of the accumulated number of times of motions measured by the counting part 1； a communication part 3 for transmitting the accumulated number of times of motions via radio communication； a computation storing part 22 for storing the latest number of times of motions as the accumulated number of times of motions transmitted by the communication part 3, and an omission reference value which is a reference to determine whether regular transmission should be omitted or not； and a computing part 4 for obtaining the accumulated number of times of motions stored in the number storing part 21 with a preset period of transmission, and transmitting a command to the communication part 3 to transmit the accumulated number of times of motions if the difference between the accumulated number of times of motions and the latest transmitted number of times of motions is the omission reference value or more, or omitting the transmission if the difference between the accumulated number of times of motions and the latest transmitted number of times of motions is less than the omission reference value.【課題】生態情報を取りこぼしてしまう可能性を高めずに低消費電力で運用できる動物生態情報収集装置および動物生態情報収集システムを提供する。【解決手段】動物生態情報収集装置は、動物の生態情報を表す動作が行われた回数を計測する計数部１と、計数部１によって計測された動作回数の累積値である累積動作回数を記憶する計数記憶部２１と、累積動作回数を無線通信により送信する通信部３と、通信部３により送信された累積動作回数である前回送信動作回数、および、定期的な送信を省略するか否かの基準となる省略基準値、を記憶する演算記憶部２２と、あらかじめ設定された送信周期で計数記憶部２１に記憶されている累積動作回数を取得し、累積動作回数と前回送信動作回数との差が省略基準値以上であれば通信部３に前記累積動作回数の送信命令を送り、累積動作回数と前回送信動作回数との差が省略基準値未満であれば送信を省略する演算部４と、を備える。【選
