Proper functional trimming isn't about hacking away horn. It's about geometry. The Toussaint Raven "Dutch Method" is the global standard for restoring natural biomechanics to the cow's foot. Here is how I apply it in the crush.
Toe Length to 75mm
I start by measuring the dorsal wall length. On a standard Holstein, this should be 75mm from the periople (hairline) to the toe tip. We cut the toe square at this length. This sets the correct weight-bearing angle.
Match the Claws
I trim the sole of the measured claw until it is clean and stable. Then, I trim the partner claw to match the length and sole thickness of the first one. The goal is a flat, balanced weight-bearing surface across both claws.
Model (Dish) the Sole
This is critical for ulcer prevention. I remove horn from the inner aspect of the sole (the "dish") to reduce pressure on the solar ulcer site. The wall should remain flat and strong to take the weight.
Corrective Steps (If Lesions Present)
- Step 4:Relieve weight from painful claws. If one claw is damaged, we lower the heel to transfer weight to the healthy claw.
- Step 5:Remove loose horn and hard ridges. Any loose horn traps bacteria (Digital Dermatitis). It must be removed cleanly.
Need a Herd Assessment?
I apply this 5-step standard to every cow I trim. If your herd is struggling with lameness, let's look at the feet.
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