Activity measurement apparatus for animals

Details Activity measurement apparatus for animals Activity measurement apparatus for animals

H - Electricity

04

B

340/148, 325/41,

H04B 7/26 (2006.01) A01K 29/00 (2006.01) A61B 5/00 (2006.01) A61B 5/11 (2006.01)

Patent

CA 1147827

ACTIVITY MEASUREMENT APPARATUS FOR ANIMALS ABSTRACT OF THE DISCLOSURE A system for detecting estrus in cows comprising an apparatus for detecting their rate of motor acticity (movement). A transmitter individual to a cow sends a very short burst of energy to a receiver, at a rate depending on the movement rate of the cow, which counts or records the bursts graphically. The bursts are such as to conserve battery power, minimizing servicing thereof, a burst of a predetermined period being transmitted each time a mercury switch attached to the cow is closed. Count rate of as much as 50% increase indicates reliably the presence of estrus, and a count rate significantly lower than normal can indicate the presence of illness.

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