AN INDICATOR OF SEXUAL EXCITEMENT STARTING TIME FOR CATTLE

摘要

Disclosed herein is an indicator for indicating an estrus starting time, which is capable of easily checking an estrus starting time while a manager does not continuously monitor a female animal when the female animal is in estrus. The indicator includes a pressure detecting portion which detects a physical pressurization state and generates a pressure detection signal; a light-emitting portion which emits light according to a light-emitting operation signal output from a controller; the controller which receives the pressure detection signal generated by the pressure detecting portion and generates and sends the light-emitting operation signal to the light-emitting portion when the pressure detection signal is continuously received for a predetermined time; and a power source which supplies power necessary for the operations of the components. When the indicator is mounted on a cow and the pressure detecting portion generates the pressure detection signal for 3 to 10 seconds due to mounting of another cow, the controller sends the light-emitting operation signal to the light-emitting portion for an estrus duration of the cow, that is, 48 hours. Accordingly, a manager can easily check estrus of a female animal through such a signal.