A Pregnancy Test Gate (palpation cage) is a great addition to any chute or working system. The Pregnancy gate allows for easy palpation, breeding, and other procedures that require rear access to the animal. A positive single bar spring loaded latch locks off the alley, forming a protected work-space. Protect yourself and your veterinarian with Powder River’s Pregnancy Test Gates. Recent upgrades now make it possible to connect to any Powder River chute.