"To monitor oestrus/heat or mating activity in cattle. Use with MATINGMARK Crayons. Allows detection of heat for artificial insemination and identification of dry cows and heifers. Also records activity of bulls during the mating season and time and distribution of calving. Quick and easy fitting with snap lock buckles. Can be reloaded without removing harness with animal's head is restrained. Secure fit under animal's chin while allowing jaw movement.
