Ontra Labs

4 May 2026 · 5 min read · Ontra Animal Health

Deworming dairy cattle: a practical, season-aware approach

Parasite burden quietly drains productivity. How a planned, season-aware deworming strategy protects growth, milk and condition.

Dejantu-Alba — broad-spectrum dewormer

Internal and external parasites rarely make headlines, but they quietly erode productivity — reducing feed efficiency, growth, milk yield and overall condition. Because the signs are often subtle, parasite burden is easy to underestimate.

Build a plan, not a reaction

Effective parasite control is planned around your region, season and herd, rather than treating only when problems are obvious. Your veterinarian can help match products and timing to the parasites that matter most in your area, and advise on rotation to protect efficacy.

Dejantu-Fenba Bolus — broad-spectrum dewormer with liver support
Broad-spectrum cover, matched to the parasites that matter locally.
  • Target the right parasites for your region and season
  • Use correct dosing for body weight
  • Rotate actives thoughtfully to preserve efficacy
  • Combine with good pasture and hygiene management

Done well, deworming is one of the most cost-effective routine interventions in dairy management. Always follow the approved dosage and your veterinarian's guidance.

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This information is educational and is not a substitute for professional advice. Always consult a registered veterinarian for diagnosis and treatment.