Parasite Control in Animals: An Overview for Horses, Cattle, Sheep & Goats

Parasite control is a vital part of maintaining the health, comfort, and productivity of animals. Internal and external parasites can cause anything from mild irritation to serious illness, weight loss, and long-term health issues if left unmanaged. Horses, cattle, sheep, and goats all face parasite challenges, but effective control programs can greatly reduce their impact.

Parasite control isn't one-size-fits-all!

Parasite control is not a one-size-fits-all approach. Horses, cattle, sheep, and goats each have unique needs, and successful control programs combine good management, regular monitoring, and responsible use of parasite treatments.If you’re unsure about the best parasite control plan for your animals, consult your veterinarian or animal health supplier to ensure treatments are safe, effective, and tailored to your situation.

  • Why Parasite Control Is Important

    Parasites feed on your animal’s nutrients, blood, or skin, placing stress on their immune system. Heavy parasite burdens can lead to:

    • Weight loss and poor growth
    • Reduced milk production or performance
    • Anemia and weakness
    • Digestive upsets and scouring
    • Skin irritation and secondary infections
    • Increased susceptibility to other diseases

    Young animals, elderly animals, and those under stress are particularly vulnerable.

  • Common Types of Parasites

    Common Internal Parasites include:

    • Roundworms
    • Strongyles
    • Lungworms
    • Tapeworms

    Common External Parasites include:

    • Lice
    • Mites
    • Ticks
    • Fleas (less common in livestock but possible)

  • Managing Parasite Resistance

    One of the biggest challenges in parasite control today is resistance to wormers. Overuse or incorrect use of treatments can make parasites harder to control over time.

    To help reduce resistance:

    • Use treatments only when needed
    • Rotate active ingredients where appropriate
    • Avoid under-dosing
    • Work with a veterinarian or animal health professional.

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