Hoof Trimming — When, Why, and How
Untrimmed hooves cause lameness that kills milk yield. Learn the 90-day cycle and 5-step trimming process.
Why Lameness Costs More Than You Think
Lameness is the third most costly health issue in dairy herds after mastitis and infertility. A single lame cow can lose 500-1000 litres of milk per lactation, has higher veterinary costs, poorer fertility, and is more likely to be culled early. Studies show that 90% of lameness originates in the hoof, and the majority of these cases are preventable with regular trimming.
The 90-Day Trimming Cycle
Functional hoof trimming should be performed every 90 days — four times per year. This schedule aligns with the average growth rate of hoof horn (approximately 5 mm per month). Cows housed on concrete require more frequent trimming than those on pasture or rubber flooring. The optimal time to trim is during the dry period, as hoof growth accelerates around calving due to hormonal changes.
The 5-Step Functional Trim
Step 1: Assess the cow's gait and负重 before trimming. Step 2: Clean the hoof thoroughly and identify any lesions. Step 3: Establish the correct toe length (7.5-8.5 cm for Holsteins, slightly less for crossbreds). Step 4: Create a weight-bearing surface by levelling the sole. Step 5: Shape the hoof wall and relieve any pressure points. Always use a grinding wheel or sharp knife — never burn the sole with over-enthusiastic grinding.
Signs Your Cow Needs Attention
Watch for arched back, head bobbing, shortened stride, reluctance to move, spending more time lying down, or uneven weight distribution when standing. Cows with sore hooves often eat less, visit the milking parlour slowly, and may show reduced milk yield 2-3 weeks before lameness becomes visibly obvious. Early detection saves money.
Trim every 90 days without exception. A 5-step functional trim prevents 80% of lameness cases. Watch for early signs — a cow that's "just a little off" today will cost you significantly tomorrow.