The ESTRU$ ALERT^® heat detection system is an excellent aid to the herder (or farmer’s) visual observation program for detecting cows in "standing-heat".

Apply ESTRU$ ALERT^® heat detectors to your cows prior to "standing-heat" or when your cows are given injections to synchronize their oestrus cycles.

The detectors have a dark-gray, scratch-off surface and a bright signal layer underneath (in red, fuchsia, green or blue). This bright color begins to show through the gray layer after the first mounting. Additional mountings result in increased color exposure. If the tags are applied and observed properly, there is zero chance of a false reading!

Your cows are bred at the ideal time, resulting in more pregnancies, which greatly improves your “bottom-line”!