Estrotect heat detector patches GN PK50 — pressure-activated, single-use estrus indicators

Estrotect Heat Detector GN PK50 are pressure-responsive estrus indicator patches designed to reveal mounting activity on breeding animals.

Estrotect is a recognizable name in livestock reproduction management; the GN PK50 kit (product code 147-78200) provides a convenient pack of single-use heat detector patches that change appearance when animals are mounted. These patches help producers and herd managers spot standing heat windows more reliably than visual observation alone, integrating into routine breeding programs without requiring power or electronics.

How do these heat detector patches show when an animal is in heat?

The patches contain a pressure-sensitive coating that changes color or exposes printed markings when subjected to mounting activity. They are adhered to the animal and register the physical contact that typically accompanies standing estrus.

• Pressure-activated color change visible from a distance
• Single-use, adhesive-backed patches for easy application
• No batteries or devices required — fully passive indicators

How should I apply and read the Estrotect GN PK50 patches?

Apply the patch to a clean, dry area on the animal where mounting contact is likely, such as the rump or tailhead. Check patches during routine rounds; any color change or marking indicates mounting events that warrant follow-up for breeding.

• Clean and dry the application site before sticking the patch
• Inspect patches daily during heat-check periods
• Replace any patch that peels off or is contaminated

How do these detectors fit into a herd breeding program?

They act as a low-cost complement to visual estrus detection and timed-breeding protocols, helping narrow breeding windows and improving timing for insemination or pairing. Use them alongside records and other detection tools for best results.

• Supports accurate timing of insemination or natural mating
• Helps reduce missed heats when staff are limited
• Compatible with routine herd-health and handling schedules

What handling and storage practices preserve product performance?

Keep the GN PK50 patches in their original packaging until use and store in a cool, dry place away from direct sunlight. Handle patches by the edges to avoid contaminating the adhesive or the pressure-sensitive surface.

• Store at stable room temperatures, out of humidity extremes
• Do not freeze or expose to prolonged heat before application
• Use within the product’s shelf-life for consistent sensitivity

Who is this for: Estrotect Heat Detector GN PK50 suits livestock producers, dairy and beef herd managers, and veterinarians seeking a straightforward, passive method to detect mounting events and better time breeding interventions. It’s especially useful on farms where continuous human observation isn’t feasible and where an inexpensive, single-use visual indicator can improve reproductive management.